DHS Assam Grade-III Recruitment 2022

Assam Direct Recruitment 2022 Grade-III Mock Test Series

General Science-Chemistry MCQ Set-1

This set contains 10 multiple choice questions. One mark for each correct answer. No negative marking for incorrect answer.

1. Which of the following is not a metal?

a) Cobalt

b) Lead

c) Iridium

d) Fluorine

Correct! Wrong!

2. SI unit of gas pressure is:

a) Newton

b) Joule

c) Pascal

d) Torr

Correct! Wrong!

3. Who is regarded as the father of modern Chemistry?

a) Lavoisier

b) Dmitri Mendeleev

c) Pauling

d) John Dalton

Correct! Wrong!

4. Which of the following is an organic acid?

a) Hydrochloric acid

b) Boric acid

c) Acetic acid

d) Phosphoric acid

Correct! Wrong!

5. What is the chemical name of washing soda?

a) Potassium Carbonate

b) Sodium Carbonate

c) Calcium Carbonate

d) Manganese Carbonate

Correct! Wrong!

6. What is the chemical name of baking soda?

a) Sodium bicarbonate

b) Potassium bicarbonate

c) Calcium bicarbonate

d) None of these

Correct! Wrong!

Also known as Sodium hydrogen carbonate

7. What is the chemical name of caustic soda?

a) Calcium Hydroxide

b) Potassium Hydroxide

c) Sodium Hydroxide

d) None of these

Correct! Wrong!

8. Urea consists of:

a) Carbon, Nitrogen and Flourine

b) Carbon, Nitrogen and Phosphorus

c) Nitrogen, Hydrogen and Flourine

d) Oxygen, Carbon and Nitrogen

Correct! Wrong!

9. pH of Vinegar is:

a) 7

b) Below 7

c) Above 7

d) None of these

Correct! Wrong!

pH value ranges from 0 to 14, acids have pH values below 7, neutral substanceshave pH value of 7, and the bases or alkalis have pH values above 7 and up to 14

10. Which of the following substance is not a neutral substance?

a) Water

b) Sodium chloride solution

c) Sugar Soluton

d) Ammonia solution

Correct! Wrong!

General Science-Chemistry MCQ Set-1

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