Basic Concepts in Chemistry (BITSAT Chemistry): Questions 1 - 6 of 35

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Question number: 1

» Basic Concepts in Chemistry » Matter and Its Nature

MCQ▾

Question

An aromatic molecule will

(1) Have (4n + 2) π electrons

(2) Planar

(3) Be cyclic

(4) Have 4n π electrons

Choices

Choice (4) Response

a.

1, 2 and 3 are correct

b.

1 and 2 are correct

c.

2 and 4 are correct

d.

1 and 3 are correct

Question number: 2

» Basic Concepts in Chemistry » Percentage Composition

MCQ▾

Question

Hydrogen and oxygen are combined in the ratio 1:16 by mass in hydrogen peroxide. Calculate the percentage of hydrogen and oxygen in hydrogen peroxide?

Choices

Choice (4) Response

a.

6.33and105.2

b.

5.88and94.12

c.

16.44and12.4

d.

6.9and101.3

Question number: 3

» Basic Concepts in Chemistry » Physical Quantities and Measurements

MCQ▾

Question

The equivalent weight of metal is double than that of oxygen. How many times is the weight of its oxide greater than the weight of metal?

Choices

Choice (4) Response

a.

3.5

b.

0.5

c.

1.5

d.

2.5

Question number: 4

» Basic Concepts in Chemistry » Matter and Its Nature

MCQ▾

Question

Which of the following property is known as extensive property of matter?

Choices

Choice (4) Response

a.

Volume

b.

Density

c.

Colour

d.

Melting point

Question number: 5

» Basic Concepts in Chemistry » Mole Concept

MCQ▾

Question

From 200mg of CO2,1021 molecules are removed. How many moles of CO2 are left?

Choices

Choice (4) Response

a.

2.88×103

b.

3×103

c.

3.6×103

d.

5.4×103

Question number: 6

» Basic Concepts in Chemistry » Atomic and Molecular Masses

MCQ▾

Question

Calculate the mass of 1.5 gram molecule of sulphuric acid?

Choices

Choice (4) Response

a.

163g

b.

150g

c.

147g

d.

190g

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