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AFMC Chemistry Mock Test - 2 - NEET MCQ


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30 Questions MCQ Test - AFMC Chemistry Mock Test - 2

AFMC Chemistry Mock Test - 2 for NEET 2024 is part of NEET preparation. The AFMC Chemistry Mock Test - 2 questions and answers have been prepared according to the NEET exam syllabus.The AFMC Chemistry Mock Test - 2 MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for AFMC Chemistry Mock Test - 2 below.
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AFMC Chemistry Mock Test - 2 - Question 1

With oxalic acid, glycerol at 503 K gives

AFMC Chemistry Mock Test - 2 - Question 2

Acetyl salicylic acid is used as

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AFMC Chemistry Mock Test - 2 - Question 3

The rate of the reaction

is fastest when Z is

Detailed Solution for AFMC Chemistry Mock Test - 2 - Question 3

Reactivity of the acid derivatives decreases as the basicity of the leaving group increases. The basicity of the leaving group increases as 

Cl^– < RCOO^– < RO^– < NH2^– 

Secondly least stabilization by resonance due to ineffective overlapping between the 3p orbital of Cl and 2p orbital of carbon.
AFMC Chemistry Mock Test - 2 - Question 4

The maximum number of electrons in a subshell is given by the expression

AFMC Chemistry Mock Test - 2 - Question 5

The Bohr's theory was modified to give the concept of elliptical orbits by

AFMC Chemistry Mock Test - 2 - Question 6

Identify the correct statement regarding enzymes.

AFMC Chemistry Mock Test - 2 - Question 7

Vinegar made from cane sugar, now-a-days synthetically contains

AFMC Chemistry Mock Test - 2 - Question 8

Which is an essential constituent of a diet?

AFMC Chemistry Mock Test - 2 - Question 9

In the resonating structure of benzene the number of σ and π bond are

AFMC Chemistry Mock Test - 2 - Question 10

A characteristic feature of reversible reactions is that they

AFMC Chemistry Mock Test - 2 - Question 11

A cylinder filled with a movable piston contains liquid water in equilibrium with water vapour at 25°C. Which one of the following operations results in a decreace in the equilibrium vapour pressure ?

AFMC Chemistry Mock Test - 2 - Question 12

A reaction with respect to the reactant A has a rate constant of 5 s⁻1. If we start with[A]= 10 mol-L⁻1, then in what time the concentration of A becomes 1.0 mol-L⁻1?

AFMC Chemistry Mock Test - 2 - Question 13

Which of the following is not isoelectronic?

Detailed Solution for AFMC Chemistry Mock Test - 2 - Question 13

Isoelectronic species: a group of ions, atoms, or molecules that have the same number of electrons.
Number of electrons in Na+ = 10
Number of electrons in Mg2+ = 10
Number of electrons in O2 − = 10
Number of electrons in Cl = 18

AFMC Chemistry Mock Test - 2 - Question 14

A catalyst is used to

AFMC Chemistry Mock Test - 2 - Question 15

Which of the following has highest first ionization potential?

Detailed Solution for AFMC Chemistry Mock Test - 2 - Question 15

Nitrogen has highest first ionization potential. This is because N contains exactly half-filled p-orbitals which is extra stable. hence its first ionisation potential is high.
Electronic configuration of N:

AFMC Chemistry Mock Test - 2 - Question 16

An adiabatic expansion of an ideal gas always has

AFMC Chemistry Mock Test - 2 - Question 17

Which of the following compound contains both the oxidiser and the fuel elements in the same molecule?

AFMC Chemistry Mock Test - 2 - Question 18

Azo dyes are prepared from

AFMC Chemistry Mock Test - 2 - Question 19

Of the five isomeric hexane,the isomers which can give two monochlorimated compound is

AFMC Chemistry Mock Test - 2 - Question 20

The pH of aqueous KCl solution is 7.0. This solution was electrolysed for a few seconds using Pt electrodes. Which of the following is correct?

Detailed Solution for AFMC Chemistry Mock Test - 2 - Question 20
Option B is correct becz during electrolysis, at anode there is oxidation of Cl minus ions (among Cl minus and OH minus present in soln. ) liberating Cl2 while on cathode there is reduction of H plus ions (among k plus & H plus in soln.) liberating H2, leaving OH minus and k+ ions in the soln this OH minus ion is responsible for increasing pH of soln.
AFMC Chemistry Mock Test - 2 - Question 21

The reaction 1/2 H₂(g) + AgCl(s) → H⁺(aq) + Cl- (aq) + Ag(s) occurs in the galvanic cell

AFMC Chemistry Mock Test - 2 - Question 22

Cassiterite is an ore of

AFMC Chemistry Mock Test - 2 - Question 23

Which of the following has the highest conductivity?

AFMC Chemistry Mock Test - 2 - Question 24

Which halide has highest melting point?

Detailed Solution for AFMC Chemistry Mock Test - 2 - Question 24
More the ionic character,more the melting point.So NaF is having highest ionic character because ,the electronegativity of fluorine is the highest hence it have the greatest pull or attraction towards the electrons in the ionic bond , resulting in a really strong sodium positive ion and a strong negative fluorine ion.
AFMC Chemistry Mock Test - 2 - Question 25

A metal X on heating in nitrogen gas gives Y. Y on treatment with H₂O gives a colourless gas which when passed through CuSO₄ solution gives a blue colour. Y is

AFMC Chemistry Mock Test - 2 - Question 26

Which of the following compounds is acidic

AFMC Chemistry Mock Test - 2 - Question 27

1-Chlorobutane on reaction with alcoholic potash gives

AFMC Chemistry Mock Test - 2 - Question 28

Hardness of water is due to which pair of ions?

AFMC Chemistry Mock Test - 2 - Question 29

Which of the following is a weak electrolyte?

Detailed Solution for AFMC Chemistry Mock Test - 2 - Question 29
NH4OH doesn't dissociates completely leading to its weak basic character. ... [NaOH=Na+ + OH- ].On the other handNH4OH partially disaccociates in water for which concentration of (OH-)ion in aqueous solution is less,making it a weakbase.[NH4OH=NH4+ + OH-].
AFMC Chemistry Mock Test - 2 - Question 30

Isotopes of elements were discovered by

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