AIIMS (All India Institute of Medical Sciences) Chemistry: Questions 58 - 64 of 123

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Question number: 58

» Basic Concepts in Chemistry » Concept of Atom, Molecule, Element and Compound

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MCQ▾

Question

How many molecules are present in one ml of water vapours at STP?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 59

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

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Question

Hexagonal close packing is found in which of the following sal lattice?

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question number: 60

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

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Question

Tetragonal crystal system has the following unit cell dimensions

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 61

» Chemical Kinetics » Order of Reaction

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Question

litre of and litre of are allowed to react to maximum possible extent. Find out the final volume of reaction mixture. Suppose P and T remains constant throughout the course of reaction:

Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

Question number: 62

» States of Matter » Solid State » Amorphous and Crystalline Solids

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Question

Crystal can be classified into ……. basic crystal lattices.

Choices

Choice (4)Response

a.

3

b.

14

c.

4

d.

7

Question number: 63

» States of Matter » Solid State » Amorphous and Crystalline Solids

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MCQ▾

Question

Which of the following statements about amorphous solids incorrect?

Choices

Choice (4)Response

a.

They melt over a range of temperature

b.

There is no orderly arrangement of particles

c.

They are rigid and incompressible

d.

They are isotropic

Question number: 64

» Atomic Structure » Bohr Model of Hydrogen Atom

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Question

Choose the correct statements -

  1. The difference in energy between 1st and 2nd Bohr orbit for a H atom is
  2. At minimum atomic , a transition from energy level would result in die emission of X-ray with .
  3. The difference in energy between 1st and 2nd Bohr orbit for an is
  4. At minimum atomic no. 4, a transition from energy level would result in the emission of X- ray with m.

Choices

Choice (4)Response

a.

1 and 2 are correct

b.

1 and 3 are correct

c.

2 and 4 are correct

d.

1,2 and 3 are correct

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