GATE Chemistry Mock Test - 3

65 Questions MCQ Test GATE Chemistry Mock Test Series | GATE Chemistry Mock Test - 3

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Attempt GATE Chemistry Mock Test - 3 | 65 questions in 180 minutes | Mock test for Chemistry preparation | Free important questions MCQ to study GATE Chemistry Mock Test Series for Chemistry Exam | Download free PDF with solutions
QUESTION: 1

Solution:
QUESTION: 2

Solution:
QUESTION: 3

Which one of the following options is the closest in meaning to the word given below?    Latitude

Solution:
QUESTION: 4

Choose the most appropriate word from the options given blow to complete the following sentence:            Given the seriousness of the situation that he had to face, his ____ was impressive:

Solution:
QUESTION: 5

Choose the most appropriate alternative from the options given below to complete the following sentence:            If the tired soldier wanted to lie, down, he _______ the mattress, out on the balcony.

Solution:
QUESTION: 6

One of the legacies of the Roman legions was discipline. In the legions, military law prevailed and discipline was brutal. Discipline on the battlefield kept units obedient, intact and fighting, even when the odds and conditions, were against them. Which one of the following statements best sums up the meaning of the above passage?

Solution:
QUESTION: 7

A and B are friends. They decide to meet between 1 PM and 2 PM on a given day. There is a condition that whoever arrives first will not wait for the other for more than 15 minutes. The probability that they will meet on that day is:

Solution:
QUESTION: 8

The data given in the following table summarizes the monthly budget of an average household.

The approximate percentage of the monthly budget not spent on savings is:

Solution:
QUESTION: 9

There are eight bags of rice looking alike, seven of which have equal weight and one is slightly heavier. The weighing balance is of unlimited capacity. Using this balance, the minimum number of weighing required to identify the heavier bag is:

Solution:
QUESTION: 10

Raju has 14 currency notes in his pocket consisting of only Rs. 20 notes and Rs. 10 notes. The total money value of the notes is Rs. 230. The number of Rs. 10 notes that Raju has is:

Solution:
QUESTION: 11

Which of the following statement is incorrect?

Solution:
QUESTION: 12

The reagents A and B in the following reactions are:

Solution:
QUESTION: 13

The given carbocation rearrangement into:

Solution:
QUESTION: 14

The reaction given below is an example of:

Solution:
QUESTION: 15

Major product formed in the following chemical reaction would be?

Solution:
QUESTION: 16

Which of the following chemical conversion is incorrectly presented?

Solution:
QUESTION: 17

Choose correct statement/s:

Solution:
QUESTION: 18

Which is true about the structure of H2Ru6(CO)18?

Solution:
QUESTION: 19

Anhydrous AlCl3 cannot be obtained from which of the following reactions:

Solution:
QUESTION: 20

Number of nodes in 1-D S.H.O models is given by (V = Vibrational Quantum number):

Solution:
QUESTION: 21

The percent transmittance of 8 × 10–5 M solution of KMnO4 is 39.8 when measured at 510 nm in a cell of path length of 1 cm. The absorbance and the molar extinction coefficient (in M–1 cm–1) of this solution respectively, are:

Solution:
QUESTION: 22

Emf of Cd-cell is 1.018 V at 25°C. The temperature coefficient of cell is –5.2 × 10–5 VK–1. How cell temperature will change during operation?

Solution:
QUESTION: 23

What is the normal freezing point of the solution represented by the phase diagram?

Solution:
QUESTION: 24

At 30°C the solubility of Ag2CO3 (Ksp = 8 × 10–12) would be greatest in one litre of:

Solution:
QUESTION: 25

If a particle has linear momentum  at position  , then its angular momentum is:

Solution:
QUESTION: 26

Aluminum metal has a density of 2.72g/cm3 and crystallizes in lattice with an edge length of 404 pm. Which of the following alternative are correct:

Solution:
QUESTION: 27

Choose correct statemet(s) in reference to fractional distillation:

Solution:
QUESTION: 28

Which of the following is not a water absorber and dehydrating substance:

Solution:
QUESTION: 29

In bis(dimethylglyoximato)nickel(II), the number of Ni—N, Ni—O and intramolecular hydrogen bond(s), respectively are:

Solution:
QUESTION: 30

The correct non-linear and iso-structural pair is:

Solution:
QUESTION: 31

In which of the following arrangements the sequence is not strictly according to the property written against it:

Solution:
*Answer can only contain numeric values
QUESTION: 32

Molar conductance at infinite dilution for BaCl2, KCl, K2SO4 and Cl- are 280, 150,300 and 76 ohm-1m2mol-1 respectively. Calculate the transport number of Ba+2 in BaSO4 solution at infinite dilution.

Solution:
*Answer can only contain numeric values
QUESTION: 33

For a given gas Critical temperature (Tc) was found to be 40 K. Hence, Ti would be?

Solution:
*Answer can only contain numeric values
QUESTION: 34

Energy for a particle in 1-D box is given by En = 72h2/ma2 where ‘a’ is length of box. Find its quantum mechanical state?

Solution:
*Answer can only contain numeric values
QUESTION: 35

What is [H+] in a solution obtained when 0.1 M ammonia is just neutralized by a strong HCl? Given: (Kb = 1.8 × 10–5) [In the multiple of 10-6, up to two decimal places]:

Solution:
QUESTION: 36

1H NMR spectrum of [Ru(h4-C8H8)(CO)3] at 23°C consists of a sharp single line. The number of signals observed at low temperature (–140°C) in its spectrum is:

Solution:
QUESTION: 37

Choose the correct statement(s) in reference to [Re2Cl8]2-:

Solution:
QUESTION: 38

Gelatin added during the polarographic measurement carried out using dropping mercury electrode:

Solution:
QUESTION: 39

Choose correct statement(s):  I. In hemoglobin, the heme part is synthesized in a series of steps in the mitochondria and the cytosol of immature red blood cells, while the globin protein parts are synthesized by ribosomes in the cytosol II. Most of the amino acids in hemoglobin form alpha helices, and these helices are connected by short non-helical segments. Hydrogen bonds stabilize the helical sections inside this protein, causing attractions within the molecule, which then causes each polypeptide chain to fold into a specific shape. III. Oxyhemoglobin is formed during physiological respiration when oxygen binds to the heme component of the protein hemoglobin in red blood cells.  IV. Deoxygenated hemoglobin is the form of hemoglobin without the bound oxygen.

Solution:
QUESTION: 40

1g charcoal show chemical adsorption of some acetic acid on coming in contact with 100 mL of 0.50 M acetic acid and the molarity of acetic acid is reduced to 0.49 M. If surface area of charcoal is 3.015 × 102 m2/g, the surface area of each chemical adsorbed molecule of acetic acid is:

Solution:
QUESTION: 41

The major product formed in the following reaction is:

Solution:
QUESTION: 42

At low pressure if RT = 2(aP)1/2, then, the volume occupied by a real gas is?

Solution:
QUESTION: 43

In a cubic crystal, the plane [100] is equally inclined to the planes?

Solution:
QUESTION: 44

Angular momentum of a particle on a ring would be?

Solution:
QUESTION: 45

Consider the following chemical reaction and choose the correct product:

Solution:
QUESTION: 46

Consider the following chemical reaction and choose the correct product:

Solution:
QUESTION: 47

Consider the following chemical reaction and choose the correct product:

Solution:
QUESTION: 48

Match correctly the given carbonyls with their corresponding IR stretching value:

Carbonyl

(W) 12C O16                                           (k) 2160

(X) 13C O16                                            (l) 1830

(Y) 13C O17                                            (m) 1951

(Z) 12C O17                              (n) 2106

Solution:
QUESTION: 49

Consider the following chemical reaction and choose the correct product:

Solution:
QUESTION: 50

Only two products are obtained in the following reaction sequence. The structures of the products from the list I-IV are:

Solution:
QUESTION: 51

In ESR spectrum of organic radicals, g-value for organic radicals generally ranges from?

Solution:
QUESTION: 52

If unit cell of a material has ccp array of Oxygen atoms with ‘m’ fraction of Octahedral holes occupied by Aluminium ions and ‘n’ fraction of Tetrahedral holes occupied by Magnesium ions. Then ‘m’ and ‘n’ are respectively:

Solution:
QUESTION: 53

Choose the correct statement(s) in reference to MO theory:
(I) Total energy depends upon S12 and H12
(II) Combination is better when energy of Փ1 = Փ2
(III) Only those orbitals overlap which have symmetry related to molecular axis
(IV) C1C2 represents electron probability density in the overlapping region of Փ1 and Փ2

Solution:
QUESTION: 54

A sample of rock from moon contains equal number of atoms of uranium and lead (t1/2 for U = 4.5 × 109 years). The age of the rock would be:

Solution:
QUESTION: 55

Products A and B are:

Solution:
QUESTION: 56

When 80 mL of 0.20 M HCl is mixed with 120 mL of 0.15 MKOH, the resulting solution is same as a solution of:

Solution:
QUESTION: 57

B2H6 reacts with
(I) Water to give boric acid and H2    (II) Oxygen to give B2O3 and H2
(III) Water to give boric acid and H2O                                     (IV) Oxygen to give B2O3 and H2O

Solution:
QUESTION: 58

Choose the correct statement(s) in reference to radical polymerization:

Solution:
*Answer can only contain numeric values
QUESTION: 59

Consider the cell Cd|CdCl2.2H2O|AgCl(s)| Hg
The emf of the cell at 15°C is 0.67531 V and temperature coefficient of emf is 0.00065 V deg–1. Calculate the value of heat flow (in Joules/mol) if the process is carried reversibly: [rounded up to first decimal places]

Solution:
*Answer can only contain numeric values
QUESTION: 60

Conductivity of 0.1 M solution is 0.025 Scm2mol-1. If 0.1 M solution having equal volume of HCl is added, conductivity decreases to 0.015 Scm2mol-1. Calculate molar conductivity of NaCl solution:

Solution:
*Answer can only contain numeric values
QUESTION: 61

The chemisorption of H2 on an activated surface becomes 40% faster if temperature is raised from 500 K to 1000 K. Calculate the activation energy of chemisorptions (in KJ/mol). (rounded up to first decimal place)

Solution:
*Answer can only contain numeric values
QUESTION: 62

If a beam of electrons collide on an energy barrier of height 0.064 eV and infinite width, find the fraction of electrons reflected if energy of coming electron is  0.050 eV:

Solution:
*Answer can only contain numeric values
QUESTION: 63

Calculate number of metal-metal per metal bonds in (u-H)2 [Cp(NO)WH]2:

Solution:
*Answer can only contain numeric values
QUESTION: 64

Energy of hydrogen atom is given by En = -e2/128ᴨao where ao  is the Bohr’s radius. What would be the value of degeneracy?

Solution:
QUESTION: 65

Choose the correct statement(s) in reference to Raman Spectroscopy:
(II) The symmetry of a vibrational mode is deduced from the depolarization ratio ρ, which is the ratio of the Raman scattering with polarization orthogonal to the incident laser and the Raman scattering with the same polarization as the incident laser
(III) Spontaneous Raman spectroscopy  is the term used to describe Raman spectroscopy without enhancement of sensitivity.
(IV) Resonance Raman spectroscopy – The excitation wavelength is matched to an electronic transition of the molecule or crystal, so that vibrational modes associated with the excited electronic state are greatly enhanced.

Solution:
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