Question

Give the ratio in which hydrogen and oxygen are present in water by volume.
(a) 1:2
(b) 1:1
(c) 2:1
(d) 1:8

Answer 1

Answer:

2:1 is the correct answer.

Explanation:

It takes two molecules of the diatomic hydrogen gas, combined with one molecule of the diatomic oxygen gas to produce two molecules of water. In other words, the ratio of hydrogen to oxygen is 2:1, the ratio of hydrogen to water is 1:1, and the ratio of oxygen to water is 1:2.

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Answer 2

Answer:

The ratio in which hydrogen and oxygen are present in water by volume is equal to 2 : 1.

Therefore, the option (c) is correct.

Explanation:

The water molecule is formed as:

2H₂(g)   +   O₂ (g)   $\longrightarrow$   2H₂O (l)

In above reaction, two moles of hydrogen gas combined with one mole of oxygen gas and formation of two moles of water H₂O.

Therefore, the ratio of hydrogen gas and oxygen gas will be 2 : 1.

The ratio of hydrogen gas and water will be 1 : 1.

The ratio of oxygen gas and water will be 1 : 2.