Why is the amount of gas collected in one of the test tube in activity 1.7 double?

Why is the amount of gas collected in one of the test tube in Activity 1.7 double of the amount collected in other? Name the gas.

Answer:

Activity 1.7 deals with the electrolysis of water using a battery. It lyses the water into its component molecule viz. Hydrogen and oxygen.

2H₂O (l) ————>2H₂ (g) + 0₂ (g)

Here two molecules of hydrogen gas liberated with one molecule of oxygen gas. So the amount of hydrogen gas is double than that of oxygen gas. For more details see Activity 1.7.

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