Basic Concepts in Chemistry [BITSAT (Birla Institute of Technology & Science Admission Test) Chemistry]: Questions 1 - 7 of 44

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Question 1

Question MCQ▾

An aromatic molecule will

(1) Have (4n + 2) electrons

(2) Planar

(3) Be cyclic

(4) Have 4n electrons

Choices

Choice (4)Response

a.

1,2 and 3 are correct

b.

2 and 4 are correct

c.

1 and 2 are correct

d.

1 and 3 are correct

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Question 2

Question MCQ▾

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

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 3

Question MCQ▾

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.

2.5

c.

1.5

d.

0.5

Edit

Question 4

Question MCQ▾

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

Choices

Choice (4)Response

a.

Density

b.

Volume

c.

Melting point

d.

Colour

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Question 5

Question MCQ▾

From of molecules are removed. How many moles of are left?

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 6

Question MCQ▾

Calculate the mass of gram molecule of sulphuric acid?

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 7

Question MCQ▾

An organic compound containing C and H has carbon. What is it՚s empirical formula?

Choices

Choice (4)Response

a.

b.

c.

d.

Edit