TRB Old Question Papers for Chemistry - 1

Question: 1

Carbon dioxide turns lime water

(A) Green

(B) Milky

(C) Red

(D) Blue

Question: 2

Organic chemistry deals with

(A) Forest animals

(B) Compounds of carbon

(C) Nutrients and hygiene

(D) Celestial bodies

Question: 3

The rate of chemical reaction generally

(A) Does not change with temperature

(B) Decreases with increase in temperature

(C) Increases with decrease in temperature

(D) Increases with increase in temperature

Question: 4

Wine cointains

(A) CH₃OH

(B) C₆H₅OH

(C) CH₃COOH

(D) C₂H₅OH

Question: 5

The percentage of oxygen present in human body is

(A) 18%

(B) 53%

(C) 65%

(D) 84%