AIIMS (All India Institute of Medical Sciences) Chemistry: Questions 48 - 53 of 123

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Question number: 48

» Polymers » Vulcanization

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MCQ▾

Question

Heating of rubber with Sulphur known as?

Choices

Choice (4)Response

a.

Sulphonation

b.

Galvanisation

c.

Vulcanization

d.

Bessermerisation

Question number: 49

» Atomic Structure » Thomson and Rutherford Atomic Models

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Assertion-Reason▾

Question

Assertion (Ꭺ)

The atoms of different elegists having same mass number but different atomic number are known as isobars.

Reason (Ꭱ)

The sum of protons and neutrons, in the isobars is always different.

Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are false

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Ꭺ is true but Ꭱ is false

d.

Ꭺ is false but Ꭱ is true

Question number: 50

» States of Matter » Solid State » Packing in Solids (Fcc, Bcc and Hcp Lattices)

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MCQ▾

Question

If ‘Z’ is the number of atoms in the unit cell that represent the closest packing sequence the number of tetrahedral voids in the unit cell is equal to

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 51

» States of Matter » Solid State » Unit Cell and Lattices

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MCQ▾

Question

An type structure is found in

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 52

» Basic Concepts in Chemistry » Atomic and Molecular Masses

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MCQ▾

Question

A compound possesses sulphur by mass. The leas molecular mass is

Choices

Choice (4)Response

a.

400

b.

155

c.

200

d.

355

Question number: 53

» Chemical Bonding » Molecular Orbital Theory » Types of Molecular Orbitals

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MCQ▾

Question

The hybridization and geometry of molecule is -

Choices

Choice (4)Response

a.

and tetragonal

b.

d and bent

c.

and shaped

d.

All of the above

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