| Post Name | Non Vocational Teacher Junior (Chemistry) |
|---|---|
| Department | Kerala Vocational Higher Secondary Education |
| Question Paper Code | 119/2026/OL |
| Category Code | 445/2025, 719/2025 |
| Date of Test | 11 June 2026 |
| Exam Type | Online Examination |
| Total Questions | 100 |
1
Which of the following element has the lowest electron aļ¬nity ?
Answer
A. I
2
The increasing order of electronegativity of Li, Be and B is
Answer
Question Cancelled
3
The smallest ionic radius among the following is
Answer
B. Mg2+
4
Which of the following is a soft base ?
Answer
D. CO
5
An example of the complex having tetrahedral structure is
Answer
B. [Ni(Cl)4]2-
6
Which one of the following sulphur-nitrogen compound has cradle like skeletal structure ?
Answer
C. Tetrasulphur tetranitride
7
The compound that will behave as an amphoteric character in liquid HF is
Answer
C. HClO4
8
The number of electron pairs present in the multicentre bonding orbitals of B5H11 is
Answer
A. 8
9
Which of the following metal carbonyl does not obey EAN rule ?
Answer
B. V(CO)6
10
The ground state term symbol of Ti3+ is
Answer
B. 2D3/2
11
Metal clusters without ligands are also known as
Answer
B. Zintl ions
12
Which of the following is a dihapto ligand ?
Answer
D. C2H4
13
Which is the HNCC compound among the following ?
Answer
C. Rh6(CO)16
14
Which of the following statement is incorrect ?
Answer
B. An example of homogeneous catalyst is Ziegler-Natta catalyst
15
Wilson disease was caused due to the toxic eļ¬ect of
Answer
A. Copper
16
Consider the following statements i) The active centre of the cytochrome is the heme group ii) Cytochrome act as redox intermediates in electron transfer reactions iii) The heme group in cytochrome c has a polypeptide chain attached and wrapped around it The correct statements about cytochromes are
Answer
D. All of the above (i, ii and iii)
17
Which of the following statement is incorrect for the thermal reactors ?
Answer
Question Cancelled
18
Which of the following set represents magic numbers for nuclear shells ?
Answer
C. 2, 8, 20, 82, 126
19
Calculate the Miller indices of crystal planes which cut through the crystal axes at (3a, 2b, c).
Answer
D. (236)
20
Which of the following statement is incorrect about Calcium ļ¬uoride structure ?
Answer
C. In this arrangement, each F- ion is surrounded by eight Ca2+ ions whereas each Ca2+ ion is surrounded by four F- ions
21
The lattice parameters of tetragonal crystal system is
Answer
D. a = b ā c, Ī± = Ī² = Ī³ = 90Ā°
22
Pottasium chloride is exposed to potassium vapour, a lilac colour is obtained. This is due to
Answer
C. Metal excess defect
23
The X-ray diļ¬raction pattern of a cubic system does not contain (100), (111), (210), (221) reļ¬ection lines. The structures of the cubic lattice is
Answer
B. Body centered cubic lattice
24
Which of the following compound giving smetic type of liquid crystals ?
Answer
A. Ethyl p-azoxy benzoate
25
Assign E and Z conļ¬guration of the following compounds : i. ii. iii. iv.
Answer
A. i, E; ii, Z; iii, Z; iv, Z
26
Which of the following annulenes is/are not aromatic : i) 14-annulene ii) 18-annulene iii) 10-annulene iv) 12-annulene
Answer
D. Both 10-annulene and 12-annulene
27
Identify the intermediate formed during the addition-elimination aromatic nucleophilic substitution reaction
Answer
B. Meisenheimer intermediate
28
Which of the following compounds would react fastest with N- bromosuccinimide ?
Answer
D. Toluene
29
Vilsmeier-Hack reaction is an example of
Answer
A. Aromatic electrophilic substitution
30
Identify the reaction that does not lead to wittig product : i. ii. iii. iv.
Answer
B. ii
31
Mustard gas (ClCH2CH2SCH2CH2CL) gets easily hydrolysed in aqueous NaOH. The rate of hydrolysis is independent of hydroixde ions and is decreased by chloride ions. Suggest a mechanism consistent with this data
Answer
A. SN1 with anchimeric assistance by sulphide ions
32
Complete the following reaction by identifying X and Y
Answer
A. X-benzoin, Y-stilbene
33
Use the Hammett equation to calculate the pK_a of base-promoted hydrolysis of p-ClCāHāCOOCāHā
, given the pK_a value of 4.25 for hydrolysis of ethyl benzoate and Ļ = 0.23.
Answer
A. 4.02
34
when n-propyl amine on treatment with nitrous acid yields n-propyl alcohol and iso-propyl alcohol. The mechanism involves the rearrangement of carbonium ion. Identify the rearrangement.
Answer
B. Demjanov
35
Match the following : 1. Jones reagent a. 2, 3 dichloro 5,6 dicyano 1,4 benzoqinone 2. DDQ b. 3. 1, 3 Dithiane c. 4. Tebbe reagent d. acidic aqueous solution of chromic acid
Answer
B. 1, d; 2, a; 3, b; 4, c
36
Identify the reaction :
Answer
B. Swern oxidation
37
The Huang-Minlon reaction involves the conversion of carbonyls to methylene in aldehydes and ketones is a modiļ¬cation of the following reaction. Identify the reaction :
Answer
C. Wolļ¬-Kishner
38
Match the following Pd catalysed reactions : 1. Stille Coupling a. aryl and alkenyl halides react with alkenes give substitution of the halide by alkenyl group 2. Sonogashira reaction b. Cross coupling reaction involving organo boron compounds 3. Suzuki coupling c. Cross coupling reaction uses aryl and alkenyl stannate 4. Heck reaction d. Coupling of terminal alkynes with vinyl or aryl halides
Answer
C. 1, c; 2, d; 3, b; 4, a
39
Complete the following :
Answer
D. X: Me(C C)3 CHOH CH CH2, Y : Me(C C)3 CH CH CH2OH
40
Complete the following and identify the product: cyclohexanone treated with SeOā.
Answer
D. Structural diagram: cyclohexane-1,2-dione (adjacent carbonyl groups)
41
A ketone was known to have one of the isomeric structures shown below and had Ī»max at 224 nm. Which was it?
Answer
A. Structural diagram: cyclopentenone with the C=C bond adjacent to the carbonyl on the right and a methyl group on each alkene carbon
42
An organic compound C8H11N (molecular weight : 121), shows the following spectral data : IR : sharp band around 3400 cm-1, absorption above 3000 cm-1 and below 3000 cm-1, bands around 1400, 1500, 1600 cm-1 and two strong bands around 700 and 750 cm-1 and two strong bands around 700 and 750 cm-1. NMR : a ļ¬ve proton multiplet 6.5-7.5, a triplet - quartet pattern at 1.2 and 3.1 respectively, sharp singlet (1H) at 3.3. MS : a base peak at m/z = 106. Suggest a structure for the compound.
Answer
A. N-ethyl aniline
43
Predict the carbon-13 chemical shift positions for the alkene carbons of 2- pentene. Assume the base value for alkenes as -123
Answer
B. Carbon 2 = Ī“ 123, carbon 3 = Ī“ 132
44
Describe the stereochemical modes of the following transformation :
Answer
A. Ring opening is conrotatory and thermally allowed
45
In the following DielsāAlder reaction, identify the products formed: a cyano-substituted conjugated diene reacts with methyl but-2-enoate, as drawn in the official source.
Answer
A. Structural diagrams: the two shown regioisomeric cyclohexene products in 84% and 16% proportions, respectively
46
An example of acyclic monoterpenoid is
Answer
C. Myrcene
47
Which of the following is a not a characteristic of amylose ?
Answer
D. It is a reducing carbohydrate
48
Which of the statement(s) are correct for the following photochemical reaction : i) Triplet energy of norbornene lies below that of acetophenone ii) Triplet energy of norbornene lies above that of acetophenone iii) Triple energy of norbornene lies above that of benzophenone iv) Triplet energy transfer from acetopheneone to norbornene causes dimer formation v) Triplet energy transfer from norbornene to benzophenone causes oxetane formation
Answer
C. i, iii, iv are correct
49
Identify the correct statements a. The Gibbs-Duhem relation helps to compute relationships between quantities as a system which remains in equilibrium b. The Gibbs free energy can be deļ¬ned as a sum of chemical potentials and amounts of species c. Gibbs-Duhem equation is used to calculate partial molar quantity of a binary mixture by measuring the composition of the mixture which depends on the total molar quantity d. Duhem-Margules equation is a relationship between the two components of a single liquid where the vapour mixture is regarded as an ideal gas
Answer
D. All are correct
50
If NaCl is doped with 1 10-4 mol of a Ba+2 ion, then the number of cation vacancy produced will be
Answer
B. 1 10-4
51
Which of the following statements are/is true ? a. The unit of Fugacity is same that of temperature b. The real gas pressure and fugacity are related through the dimensionless fugacity coeļ¬cient c. The fugacity goes to zero when the molar fraction of a component moves to zero d. Fugacity directly relates to the tendency of a substance to prefer one phase over another
Answer
C. b, c and d are correct
52
Select the true statement(s) from the following a. The sackur-Tetrode equation expresses the entropy of a monatomic ideal gas in terms of its thermodynamic state b. The ratio of the speciļ¬c heats, is called adiabatic index and the ratio of the speciļ¬c heats is 5/3 for monatomic ideal gas and 7/5 for diatomic gas c. The ratio of the speciļ¬c heats, is called isothermal index and the ratio of the speciļ¬c heat is 7/5 for monatomic ideal gas and 5/3 for diatomic gas d. Integrated vantHoļ¬'s equation could be eļ¬ective in calculating equilibrium constant at another absolute temperature assuming a constant standard enthalpy change over the temperature range
Answer
C. a, b and d are true
53
The values of H and S for a reaction at 300K are -40 kJ and +135 JK-1 respectively. The reaction is
Answer
A. Spontaneous and Exothermic
54
Which of the following statements is/are correct in polarographic method ?
Answer
Question Cancelled
55
Consider a second order reaction 2 X ā Y with a rate constant Kā and let the initial concentration of the reactant be aā. What will be the linear function of time t with the slope Kāaā, if the concentration at time t is bā?
Answer
D. None of these
56
Identify the correct statement(s) from the following a. Freundlich's adsorption isotherm fails at the high pressure of the gas b. A PES spectrum is a graph of photoelectron count vs. binding energy c. AES is not useful when investing particles sizes smaller than 25 nm d. Brunauer-Emmett-Teller theory applies to systems of multilayer adsorption that usually utilizes a probing gas that do not react chemically with the adsorptive
Answer
C. a, b and d are correct
57
In enzyme catalysis reactions, considering Michaelis-Menten Equation
Answer
D. Michaelis constant is a reļ¬ection of the aļ¬nity of enzyme for its substrate and is characteristic of a particular enzyme-substrate system
58
Which of the following statement is wrong ?
Answer
B. Debye-Huckel-Onsagar conductance equation does not consider the electrophoretic eļ¬ect and Asymmetric eļ¬ect
59
In cases where the potential at inļ¬nity is Vext rather than zero, then
Answer
A. Free states occur for E ā„ V_ext and bound states occur for min(V) < E < V_ext
60
A particle is confined to move in a one-dimensional box of length 2a (āa < x < a), with V = 0 inside and infinite outside. Then the function corresponding to the first excited state is
Answer
A. (1/āa) sin(Ļx/a)
61
Total number of IR active vibration modes of pyridine is
Answer
C. 24
62
Find out the correct statements(s) regarding the widening of molecular spectral lines i. Droppler broadening frequency is proportional to T ii. Collision broadening frequency is directly proportional to the square root of pressure iii. Collision broadening frequency is inversely proportional to the square root of temperature iv. Droppler broadening peak is lorenzian in character
Answer
Question Cancelled
63
The irreducible representations of C2h are Ag, Au, Bg and Bu. The Raman active mode of trans-1, 3 butadiene belongs to which of the following irreducible representations
Answer
B. Ag and Bg
64
In complexometric titration to determine the mass of copper using Murexide indicator at a pH between 9 and 11
Answer
A. The colour of free indicator is violet and the colour of metal ion complex is orange
65
In the qualitative analysis of sixth group cations, the presence of potassium ion is conļ¬rmed by adding sodium cobalt nitrate and dilute acetic acid to the test solution. The colour of the precipitate obtained is
Answer
B. Yellow precipitate
66
Which of the following statement is not correct regarding Thermal Analysis ?
Answer
Question Cancelled
67
Which of the following are examples for natural polymers with pH- responsive behavior ?
Answer
B. Chitosan and Chitin
68
Which of the following are not the essence of green chemistry principles ?
Answer
C. Incorporation of renewable feedstock and reduction in use of catalysts
69
Radio waves gets reļ¬ect at which atmospheric layer
Answer
B. Ionosphere
70
Identify the correct statement(s) a. The colour change of halochromic substances occur when the chemical binds to existing hydrogen and hydroxide ions in solution b. Mangnetocaloric materials are magnetic materials that heat up/cool down when they are placed in a magnetic ļ¬eld c. When the spiropyran is in a solution with polar solvents and exposed to radiation, it becomes coloured because its structure has changed and it has been transformed into the merocyanine form d. Diarylethene is a new family of thermally irreversible photochromic molecules
Answer
D. a, b, c and d are correct
71
Assertion (A) : English education became important in Kerala due to administrative reforms in Travancore and Cochin. Reason (R) : Separate judiciary and revenue departments required a trained hierarchy of oļ¬cials who were educated mainly through the new English-medium schools.
Answer
A. A and R are true and R is the correct explanation of A
72
The statements A, B, C and D below explain how printing inļ¬uenced social change in Kerala. Read them carefully and choose the correct answer from the options given. A. The early printing presses helped democratize knowledge beyond caste restrictions B. Herman Gundert published early Malayalam newspapers such as Rajya Samacharam C. Printing and English education mutually supported each other in promoting modernity D. Printed texts strengthened the sacred aura of traditional manuscripts
Answer
B. A, B and C are correct
73
The following statements A, B, C and D describe aspects of Sree Narayana Guru's social reform vision. Read each statement carefully and select the correct answer from the options given below. A. He propagated the ideal "One Caste, one Religion, One God for Man." B. His teachings emphasized overcoming caste oppression through education. C. He discouraged Sanskrit learning as a Brahmanical monopoly. D. He belived that spiritual equality must precede social equality.
Answer
C. A, B and D are correct, but C is false
74
The following statements A, B, C and D relate to the origins of the Sadhu Jana Paripalana Sangham. Read each statement carefully and choose the correct answer from the options given below. A. It was founded in 1907 by Ayyankali B. It primarily aimed to protect the rights and welfare of Pulaya community C. It emerged as a response to caste discrimination and denial of civil rights D. It was established through the patronage of Travancore royal government.
Answer
B. A, B and C are correct
75
Statements A, B and C below present diļ¬erent views about the abstention movement in travancore. Read them carefully and choose the correct option from the choices given. A. It aimed to secure fair political representation for Ezhavas, Christians and Muslims B. The movement rejected the 1932 Legislative Council election due to caste-based voter discrimination C. It was led by community organizations such as the Nair Service Society, SNDP Yogam and Christian groups
Answer
A. Both A and B are true
76
Statements A, B and C describe the connection between the Malabar Rebellion and the wider Indian nationalist movements. Read the statements carefully and choose the correct option from those given below. A. Both the Khilafat and Non-Cooperation Movements created a new political consciousness among peasants in Malabar B. Congress leadership initially supported the anti-colonial dimension but distanced itself from violent phases. C. The rebellion revealed the complex intersection of nationalism, religion and agrarian distress.
Answer
D. All are true
77
The statement A, B, C and D describe the role played by newspapers during the Kerala Renaissance. After examining which statement are true or false, choose the correct combination from the options provided. A. Newspapers acted as platforms against caste discrimination and social evils B. Newspapers functioned only as entertainment journals for the elite C. Early Malayalam press avoided political issues to prevent government action D. Newspapers supported caste hierarchies and traditional inequalities.
Answer
A. Only A is correct
78
Statements A, B, C and D give information about Accamma Cherian. Read each statement carefully, examine whether it is true or false and then choose the correct option that matches the right combination of statements. A. She led the historic 1938 "Women's March to the Secretariat" during the Travancore freedom struggle B. She was popolarly known as the Jhansi Rani of Travancore C. She was known mainly as a literary critic and not a political leader D. She commonly known as 'Amma'
Answer
A. Both A and B is correct but C and D are false
79
The statements A, B, C and D describe diļ¬erent aspects of Vaikom Muhammad Basheer's life and work. Read each statement carefully and pick the correct combination from the options provided. A. Basheer is celebrated for his humanistic themes and simple, humorous writing style that reļ¬ected everyday life B. He took part in the freedom struggle and was imprisoned during the Indian national movement C. Basheer conļ¬ned his writings to elite social themes and avoided portraying the lives of common people D. He was primarily known as a Sanskrit scholar who focused only on classical literature.
Answer
C. A and B are correct
80
Read the statements A, B, C and D related to the history and legacy of the Vaikom Satyagraha. Analyse them carefully, eliminate the incorrect statements and choose the correct answer from the options given. A. The Satyagraha aimed to secure the right of all castes to walk on the temple roads surrounding the Vaikom Mahadeva Temple B. T. K. Madhavan, K. Kelappan and George Joseph were early organizers of the movement C. Mahatma Gandhi personally visited Vaikom and held discussions with the Travancore authorities D. The Satyagraha is widely considered the ļ¬rst mass civil rights movement in Kerala against caste restrictions.
Answer
D. All are true
81
Directive Principles of states Policy are non-justiciable because
Answer
B. These are not enforceable by courts
82
The famous Objective Resolution was moved by
Answer
C. Pandit Jawaharlal Nehru
83
Fundamental Rights are contained in which part of Indian Constitution ?
Answer
A. Part III (Articles 12-35)
84
Atal Pension Yojana is a pension scheme for
Answer
C. Workers in unorganized sector
85
POCSO Act 2012 came into force in line with
Answer
B. Convention on Rights of Child 1989
86
Poshan Abhiyan was launched
Answer
D. To improve nutritional outcomes of children, pregnant women, lactating mothers etc
87
Pradhan Manthri Suraksha Bima Yojana is available
Answer
A. To people in the age group 18 to 70 years
88
While ordinary Legal Rights are protected and enforced by ordinary laws, fundamental rights are protected and guaranteed by
Answer
D. The Constitution of India
89
Right of minorities to establish educational institutions comes under
Answer
C. Cultural and Educational Rights
90
Fundamental Duties were incorporated in Indian Constitution through
Answer
A. 42nd Amendment in 1976
91
Which of the following is not associated with the concept of learning ?
Answer
C. Learning is a product
92
'Learning To Be', one of the four pillars of education involves :
Answer
A. Learning to develop the multiple dimensions of the human personality
93
Conceptual Competency, one of the factors aļ¬ecting teaching-learning process means :
Answer
B. Know the educational implications with respect to the physical, mental, social and cultural needs of the student
94
A successful learner is i. One who is able to connect his/her learning to life situations ii. One who thinks oneself and push through challenges iii. One who is self-directed and much oriented to self-discipline iv. One who involves less in his/her activity but observes others
Answer
D. Only i, ii and iii
95
Which of the following is/are the phases of a teaching task ? i. Reļ¬ective phase ii. Post-active phase iii. Interactive phase iv. Reaction phase
Answer
D. Only ii and iii
96
In a carefully carried out experimental study, the researcher found signiļ¬cant diļ¬erence in the performance of the experimental and control group. This can be explained as since
Answer
C. The researches manipulated the independent variable among groups
97
Which of the following statements is/are correct about Historical research ? i. It used logical induction ii. It does not involve collection of data using structured tools iii. It is a mere accumulation of facts and data iv. It is a quantitative type of research
Answer
B. Only i and ii
98
Three 'cardinal sins' of research conduct is
Answer
A. Falsiļ¬cation, Fabrication, Plagiarism
99
Which of the following sequence is correct in the context of a research ? i. Sample selection ii. Writing of the title iii. Selection of the variable iv. Writing of the objectives
Answer
A. iii, i, ii, iv
100
Which of the following format of reference is correctly written as per APA style ?
Answer
D. Ahamad, N. R., & Ariļ¬n, M. (2018). Assessment of knowledge, attitude and practice towards sustainable consumption among university students in Selangor, Malaysia. Sustainable Production and Consumption, 16, 88-98.
Discussion
Ask a doubt or share a tip.
No comments yet ā start the discussion.