Basic Concepts in Chemistry-Atomic and Molecular Masses (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry): Questions 7 - 12 of 13

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Question number: 7

» Basic Concepts in Chemistry » Atomic and Molecular Masses

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Question

If mass of neutron is assumed to half of it’s original value, whereas that of proton is assumed to be twice of it’s original value then the atomic mass of will be?

Choices

Choice (4) Response

a.

less

b.

more

c.

less

d.

Same

Question number: 8

» Basic Concepts in Chemistry » Atomic and Molecular Masses

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Question

An organic compound made of contain 20 % nitrogen. What will be its molecular mass if it contains one nitrogen atom in it?

Choices

Choice (4) Response

a.

100

b.

65

c.

140

d.

70

Question number: 9

» Basic Concepts in Chemistry » Atomic and Molecular Masses

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Question

The mass of carbon anode consumed in the production of bauxite by Hall process is?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 10

» Basic Concepts in Chemistry » Atomic and Molecular Masses

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Question

Calculate the number of oxygen atoms in What would be the mass of having the same number of oxygen atoms?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 11

» Basic Concepts in Chemistry » Atomic and Molecular Masses

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Question

One atom of an element weighs Calculate the number of gram atoms in of it?

Choices

Choice (4) Response

a.

400

b.

100

c.

4000

d.

1000

Question number: 12

» Basic Concepts in Chemistry » Atomic and Molecular Masses

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Question

is allowed to react with for the following reaction?

What mass of will be left unreacted at the end of reaction?

Choices

Choice (4) Response

a.

2

b.

5

c.

3

d.

4

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