SET Chemical Science Question Answers

SET Chemical Science Question Answers for competitive exams: This mock test having mcq question each also from Paper II, Paper III Syllabus, with four choices. On each click on answers system will tell you where the answers is correct or incorrect. You can view this SET Chemical Science test question details at the end of the quiz.

CSIR Chemical Science Question Papers , Syllabus

SET Chemical Science Question Papers , Syllabus

SET Chemical Science Question Answers

State Level Eligibility Test is also know as SET (State Eligibility Test) Chemical Science questions answers are applicable for any kind of Higher Education especially for Lecturer and PHD examination like UGC NET And CSIR NET. . You can practice as much as you can to gather knowledge of how to answers SET Chemical Science critical type papers in short time and this can be a big factor for cracking LS/PHD level exam.

SET/SLET Chemical Science Paper II Mock Test

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Question 1

The correct increasing order of second ionization energy of elements X, Y, Z with respective atomic numbers 19, 20, 38 is

A	X,Y,Z
B	X,Z,Y
C	Z,Y,X
D	Z,X,Y

Question 2

Nicotine molecule is composed of I. Pyridine II. Furan III. Pyrrolidine IV. Pyrimidine The correct statement is

A	I and II
B	I and III
C	II and IV
D	I and IV

Question 3

Condensation of water vapour is accompanied by

A	a decrease in entropy
B	an increase in entropy
C	no change in entropy
D	either increase or decrease in entropy

Question 4

The characteristic feature of an electroactive ion among the following in normal voltammetry is

A	Residual current
B	Diffusion current
C	Summit potential
D	Half-wave potential

Question 5

Retinol is

A	enzyme
B	hormone
C	vitamin
D	provitamin

Question 6

Toluene in proton decoupled ¹³C NMR spectrum gives

A	5 signals
B	4 signals
C	3 signals
D	6 signals

Question 7

Gas liquid chromatography is used for the separation of compounds that have/are I. Low vapour pressure II. High vapour pressure III. Stable at high temperatures IV. Unstable at high temperatures

A	I, III
B	II, III
C	I,IV
D	II, IV

Question 8

Assertion (A): HF is the strongest acid in water among HF, HCI, HBr and HI Reason (R) : HF has the largest electronegativity difference among all

A	Both A and R are true and R is the correct explanation of A
B	Both A and R are true, but R is not the correct explanation of A
C	A is true, but R is false
D	A is false, but R is true

Question 9

___________ radiation is used to record the ESR spectrum of a radical.

A	Ultraviolet
B	Infrared
C	Microwave
D	Radio frequency

Question 10

Assertion (A) : A liquid can be used as the stationary phase in a chromatography technique. Reason (R) : A liquid has the property of moving.

A	Both A and R are true and R is the correct explanation of A
B	Both A and R are true, but R is not the correct explanation of A
C	A is true, but R is false
D	A is false, but R is true

Question 11

Assertion (A) :SOC1₂ in liquid SO₂is an acid Reason (R): Liquid SO₂ autoionises to give SO²⁺ and SO^2-₃

A	Both A and R are true and R is the correct explanation of A
B	Both A and R are true, but R is not the correct explanation of A
C	A is true, but R is false
D	A is false, but R is true

Question 12

If an arbitrary wave function is used to calculate the energy of a quantum mechanical system the calculated energy is never less than the true energy of the system. This statement is

A	Heisenberg uncertainty principle
B	Perturbation theory
C	Law of conservation of energy
D	Variation principle

Question 13

Match the following:

I. Furyl acrylic acid from furfural	1. Skraup synthesis
II. 8-quinolinol from 0-amino phenol	2. Perkin reaction
III. lndole-3- carboxaldehyde	3. Bischler- Napieralski reaction
IV. 1-Methyl Iso- quinoline from ß-phenyl ethyl amine	4. Reimer-Tieman reaction
	5. Grignard reaction

	I	II	III	IV
(A)	1	3	5	2
(B)	4	2	1	5
(C)	2	1	4	3
(D)	2	3	1	4

A	(A)
B	(B)
C	(C)
D	(D)

Question 14

Assertion (A) :The pH of pure water at 80⁰C is less than 7.0. Reason (R) : The ionic product of water increases with increase in temperature.

A	A is false and R is true
B	A is true and R is false
C	Both A and R are true and R is the correct explanation of A
D	Both A and R are true but R is not the correct explanation of A

Question 15

Match the following:

List—I (Phenomenon)	List—II (Related technique)
I. Koopman’s rule	1. Raman spectroscopy
II. Polarizability	2. Photoelectron spectroscopy
III. Spin-spin coupling	3. Mossbauer spectroscopy
IV. Dipole moment	4. NMR spectroscopy
	5. Infrared spectroscopy

	I	II	III	IV
(A)	2	5	4	1
(B)	2	1	4	5
(C)	3	1	4	5
(D)	3	5	4	1

A	(A)
B	(B)
C	(C)
D	(D)

Question 16

Match the following

List—I (Process)	List—II (Catalyst used)
I. Hydroformylation	1. Rh (Ph₃P)₃Cl
II. Monsanto acetic acid process	2. Co₂(CO)₈
III. Hydrogenation	3. [Rh(CO)₂l₂]^-
IV. Wacker process	4. ZSM -5
	5. [PdCl₄]^2-

	I	II	III	IV
(A)	2	1	3	5
(B)	2	3	1	5
(C)	3	5	1	4
(D)	4	3	1	5

A	(A)
B	(B)
C	(C)
D	(D)

Question 17

Match the following:

List—I (Ion)	List—II (Number of unpaired electrons)
I. Fe²⁺	1. 0
II. Cr³⁺	2. 2
III. Cu⁺	3. 3
IV. Ni²⁺	4. 4
	5. 6

	I	II	III	IV
(A)	5	4	2	1
(B)	4	3	2	1
(C)	4	3	1	2
(D)	5	3	1	2

A	(A)
B	(B)
C	(C)
D	(D)

Question 18

Anti inflammatory activity is exhibited by

A	ibuprofen
B	chloroequin
C	isoniazid
D	metronidazole

Question 19

The conversion of toluene to benzoic acid is faster in presence of

A	Thermal energy
B	Sonication
C	Cooling
D	MW irradiation

Question 20

Salbutamol is useful in the treatment of

A	hypertension
B	amoebiasis
C	tuberculosis
D	bronchial asthama

Question 21

Which of the following statements is wrong?

A	Nanomaterials show the same properties as those exhibited by bulk materials
B	Nanomaterials are prepared by either top down or bottom up approaches
C	Texture of nanomaterials is studied by SEM /TEM
D	Phase identification of nanomaterials is done by XRD

Question 22

The pollutant responsible for Bhopal disaster in 1984 is

A	Phosgene
B	Methylamine
C	Methyl isocyanate
D	Carbon monoxide

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SET/SLET Chemical Science Paper III Mock Test

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Question 1

The bond order and the number of unpaired electrons in O₂^-are respectively I. 1.0 II. 1.5 III. 0 IV.1

A	I, III
B	I,IV
C	II, III
D	II,IV

Question 2

Paraldehyde is formed from

A	Methanol
B	Propanol
C	Benzaldohyde
D	Ethanal

Question 3

The high resolution ¹H NMR spectrum of CHCI₂ — OH₂ Br exhibits

A	Two doublets
B	Two triplets
C	One triplet and one doublet
D	One singlet and one doublet

Question 4

Assertion (A) : The chemical potential of i^th component in a mixture depends on the composition of the mixture. Reason (R) : The molecular forces depend on the molecular environment.

A	A is false, R is true
B	A is true. R is false
C	A and R are true but R is not the correct explanation of A
D	A and R are true, and R is the correct explanation of A

Question 5

The success of flame emission spectroscopy as an analytical technique depends on

A	Ionization of sample
B	Polymerization of sample
C	Solvation of sample
D	Atomization of sample

Question 6

The reaction of 2-chloropyridine with sodium ethoxide is

A	Elimination followed by addition
B	Electrophilic aromatic substitution
C	Addition followed by substitution
D	Nucleophilic aromatic substitution

Question 7

Match the following

List—I	List—II
I. Phosphorescence	1. a schematic diagram of the various type of non-radiative and radiative transitions that can occur in molecules
II. Inter system crossing	2. Spontaneous emission of radiation arising from a transition between states of different multiplicities
III. Fluorescence	3. Spontaneous emission of radiation arising from transition between states of the same multiplicity
IV. Jablonski diagram	4. Non-radiative transition between states of different multiplicity 5. Non radiative transition between states of the same multiplicity

	I	II	III	IV
(A)	1	2	3	5
(B)	3	1	2	5
(C)	2	4	3	1
(D)	2	5	3	1

A	(A)
B	(B)
C	(C)
D	(D)

Question 8

An ESR spectrum of hydrogen atom shows two lines. This is due to

A	Spin-spin coupling
B	Quadrupole coupling
C	Hyperfine coupling
D	Antiferromagnetic coupling

Question 9

Mention the principle involved in LED- television

A	Luminescence
B	Phosphorescence
C	Electroluminescence
D	Fluorescence

Question 10

The correct statements among the following: 1. The canonical ensemble is an imaginary collection of replications of the actual system with a common temperature. 2. The Boltzmann distribution gives the number of the molecules in each state of a system at any temperature. 3. The partition function is an indication of the number of thermally accessible states at the temperature of interest. 4. The molecular partition function can be written as q = q^T q^R q^Vq^E.

A	1 and 2
B	2,3 and 4
C	1, 3 and 4
D	All are correct

Question 11

¹⁹F NHR spectrum of PCl₂F₃ shows

A	Two triplets and two doublets
B	Two triplets and one doublet
C	Two doublets and two triplets
D	One singlet and two triplets

Question 12

Identify from the following systems in which orbital contribution to magnetic moment is expected I. [Mn(H₂O)₆]²⁺ II. [MnBr₄] ^2- III. [Fe(CN)₆]^3- IV. [Co(H₂O)₆]²⁺

A	I, II
B	II, III
C	III, IV
D	I,IV

Question 13

Mossbauer spectroscopy is concerned with I. Doppler effect II. Photoelectric effect III. Recoil energy IV. Cotton effect

A	I, II
B	I, III
C	II, III
D	II, IV

Question 14

Match the following:

List—I (Compound)	List—II (Nature)
I. K₂ Cr₂ O₇	1. Anticancer agent
II. EDTA	2. Reductant
III. Kl	3. Chelating agent
IV. Cis-Pt (NH₃)₂ Cl₂	4. Oxidant
	5. Desiccant

	I	II	III	IV
(A)	4	3	2	1
(B)	2	3	4	1
(C)	5	3	2	1
(D)	5	3	4	1

A	(A)
B	(B)
C	(C)
D	(D)

Question 15

Select the correct statements from the following 1. Coagulation of a colloid is the reversible aggregation of dispersed phase. 2. Flocculation of a colloid is the irreversible aggregation of the dispersed phase. 3. Colloids are purified by electrodialysis. 4. Hydrophobic colloids are flocculated most efficiently by the ions of opposite charge.

A	1,3 and 4
B	2,3 and 4
C	1, 2 and 3
D	3 and 4

Question 16

Assertion (A): In a catalysed reaction a small amount of the catalyst brings a large change in the rate of the reaction. Reason (R) : A catalyst does not participate in the reaction.

A	Both A and R are true but R is not the correct explanation of A
B	A is true R is false
C	A is false R is true
D	Both A and R are true and R is the correct explanation for A

Question 17

Match the following:

List—I (Complex)	List—II (Hybridization of Central Atom)
I. [PtCl₄]^2-	1. sp³
II.[Ni(CO)₄]	2.dsp²
III. [Fe(CO)₅]	3. dsp³
IV. [Cr(CO)₆]	4. d²sp³
	5. d³sp³

	I	II	III	IV
(A)	1	2	5	4
(B)	2	1	3	4
(C)	3	1	4	2
(D)	2	1	5	4

A	(A)
B	(B)
C	(C)
D	(D)

Question 18

The quadrupole nuclei among the following are I. ¹²C II. ¹³C III.¹⁴N IV.³⁵Cl

A	I,III
B	II,III
C	II,IV
D	III,IV

Question 19

In the extraction of metal ions from water into an organic solvent, some of the desirable characteristics of the organic solvent are I. Low miscibility with water II. Low toxicity III. High miscibility with water IV. High toxicity

A	I, II
B	II, III
C	III, IV
D	I, IV

Question 20

Assertion (A) : The entropy of a gaseous mixture is greater than the sum of the entropies of the individual gases. Reasoning (R) : All spontaneous processes are accompanied by an increase in entropy.

A	A is true and R is false
B	A is false and R is true
C	A and R are true but R is not the correct explanation of A
D	A and R are true and R is the correct explanation of A

Question 21

The correct statements among the following are 1. A catalyst does not affect the equilibrium constant. 2. Le Chatelier’s principle states that a system at equilibrium, when subjected to a disturbance responds in a way that minimizes the effect of the disturbance. 3. Increase in temperature favours the reactants in endothermic reactions and products in exothermic reactions. 4. Oxidation is the removal of electrons from a species and reduction is the addition of electrons to a species.

A	1,2 and 3
B	1,2 and 4
C	1, 3 and 4
D	2, 3 and 4

Question 22

Match the following:

List—I (Species)	List-II (Nature)
I. Chlorophyll	1. Contains Co (III) ion
II. Haemoglobin protein	2. Non-heme iron sulphur
III. Vitamin B₁₂	3. Contains Mg
IV. Rubredoxin	4. Anticancer drug
	5. Contains Fe (II)

	I	II	III	IV
(A)	1	2	5	4
(B)	3	5	1	2
(C)	5	4	3	1
(D)	3	2	4	5

A	(A)
B	(B)
C	(C)
D	(D)

Question 23

In quantum mechanical tunnelling the transmission coefficient

A	Increases with the thickness of the barrier
B	Decreases exponentially with the thickness of the barrier
C	Decreases with the square of the thickness of the barrier
D	Doesnot depend on the thickness of the barrier

Question 24

Example of fermions are

A	Electron and proton
B	Photon and proton
C	Electron and photon
D	Photons

Question 25

Which of the following exhibit quadrupole splitting ? I. K₄[Fe(ON)₆] II. K₃[Fe(CN)₆] III. [Fe(H₂O)₆]Cl₃ IV. Fe(CO)₅

A	I,II
B	I,III
C	II, III
D	II, IV

Question 26

Assertion (A) : Zn²⁺ ion is zinc finger proteins is bound to S₂N₂ system. Reason (R) : Zn²⁺ ion is borderline acid and is stable with borderline S₂N₂ system.

A	Both A and R are true and R is the correct explanation of A
B	Both A and R are true but R is not the correct explanation of A
C	A is true but R is false
D	A is false but R is true

Question 27

A linear molecule having N atoms has ________— number of independent modes of vibration.

A	3N—5
B	3N—6
C	3N
D	3N—3

Question 28

Lowest allowed energy is equal to zero for a

A	Harmonic oscillator
B	Particle in a two dimensional box
C	A rigid rotator
D	Hydrogen atom

Question 29

Match the following

I. Aerosol	1. Cyclopropane
II. Insecticide	2. lodoform
III. Anaesthetic	3. P-dichlorobenzene
IV. Antiseptic	4. Freon
	5. CCl₄

	I	II	III	IV
(A)	4	3	1	2
(B)	2	3	4	1
(C)	3	2	1	4
(D)	4	5	3	2

A	(A)
B	(B)
C	(C)
D	(D)

Question 30

For a one component system the maximum number of phases that can coexist at equilibrium are

A	4
B	3
C	2
D	1

Question 31

The standard reduction potentials of Fe³⁺, Fe²⁺/Pt and Fe²⁺/Fe electrodes at 25°C are +0.771V and — 0.440V respectively. The standard emf of the cell in which the following reaction takes place is Fe + 2Fe³⁺→3Fe²⁺

A	+ 0.331 V
B	- 0.331 V
C	- 1.211 V
D	+1.211V

Question 32

Assertion (A) : The pH of aqueous solution of NaCl is 7.0 Reason (R) : Aqueous solutions of all salts are neutral.

A	A and R are true and R is the correct explanation of A
B	A and R are true but R is not the correct explanation of A
C	A is true and R is false
D	A is false and R is true

Question 33

Match the following:

List-I (Compound)	List-II (Nature)
I. HCI	1. Conjugate base of NH⁺₄
II. NH₃	2. Arrhenius base
III. AICI₃	3. Conjugate acid of NH⁺₄
IV. NaOH	4. Lewis acid
	5. Bronsted acid

	I	II	III	IV
(A)	3	1	5	2
(B)	5	3	4	2
(C)	4	1	5	2
(D)	5	1	4	2

A	(A)
B	(B)
C	(C)
D	(D)

Question 34

Which commercial product comes from cellulose?

A	Nylon
B	Rayon
C	Dacron
D	Orion

Question 35

Assertion (A) : Cluster formation by a metal is inversely proportional to its effective nuclear charge. Reason (R) : Nuclear charge contracts the metal orbitals meant for overlap.

A	Both A and R are true and R is the correct explanation of A
B	Both A and R are true but R is not the correct explanation of A
C	A is true but R is false
D	A is false but R is true

Question 36

An enzyme enhances the rate of the reaction by

A	Increasing the number of collisions between the reactants
B	Increasing the velocity of the reacting molecules
C	Providing energy to the reacting molecules
D	Decreasing the activation energy of the reaction

Question 37

Assertion (A) : The d¹ and d⁸ systems have the same number of microstates. Reason (R) : According to hole formalism, dⁿ d^10-nwhere n is the number of electrons

A	Both A and R are true and R is the correct explanation of A
B	Both A and R are true but R is not the correct explanation of A
C	A is true but R is false
D	A is false but R is true

Question 38

Assertion (A) : ESR spectroscopy is not applicable for H₂ molecule. Reason (R) : H₂ molecule contains a single bond between the H atoms.

A	Both A and R are true and R is the correct explanation of A
B	Both A and R are true but R is not the correct explanation of A
C	A is true but R is false
D	A is false but R is true

Question 39

1, 2 — Disubstituted olefins having E/z isomerism can be identified by ¹H—nmr using

A	Chemical shift
B	Deutereum exchange
C	Solvent
D	Coupling constant

Question 40

The rate of the reaction is _____________ the number of activated molecules, when it is controlled by the steric factor.

A	Greater than
B	Not related to
C	Less than
D	Equal to

Question 41

According to Wade’s rules, structures of B₁₀ C₂ H₁₂and (B₉ C₂ H₁₂)^2- are respectively I. Closo II. Nido III. Arachno IV. Hypho

A	I, II
B	II, III
C	I, IIII
D	II, IV

Question 42

Assertion (A) : Both the complexes proceeding by dissociative mechanism,[ Co(NH₃)₄Cl₂]⁺undergoes much faster acid hydrolysis reaction than [Co(NH₃)₅Cl]²⁺ Reason (R) : The rate of loss of chloride decreases as charge on the complex increases.

A	Both A and R are true and R is the correct explanation of A
B	Both A and R are true but R is not the correct explanation of A
C	A is true but R is false
D	A is false but R is true

Question 43

Indicate the catalyst used in the Wacker reaction having industrial importance

A	Zn
B	Cd
C	Pd(II)
D	Hg

Question 44

The number of ESR signals formed in the spectrum of benzene anion radical is

A	5
B	6
C	7
D	8

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SET Chemical Science Question Answers