Question

Carbon molecules reacts with oxygen molecules in the ratio of 1:1 to form Carbon

dioxide. Carbon molecules reacts with oxygen molecules in the ratio of 2:1 to form

carbon monoxide. Atomic mass of carbon is 12 u and oxygen is 16u. Also, oxygen gas

is diatomic. Avogadro’s number = 6.022 × 10^23

.

4

i) What is the mass ratio in which carbon and oxygen are reacting to form carbon

dioxide?

a) 3:4. b) 2:3. c) 1:1. d) 4:3 1

ii) How much amount of oxygen is required to react with 100 grams of carbon to form

112 grams of carbon monoxide?

a) 64 g. b) 50 g. c) 100 g. d) 44 g 1

iii) Which law governs the ratio in which elements react to form compounds?

a) Law of conservation of mass

b) Law of constant proportions

c) Law of conservation of energy​

Answer 1

Answer:

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