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Inquiry Based Questions
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Priya was reading a book on science experiments. It said that water was made up of two gases-hydrogen and oxygen. Priya got herself a glass of water and looked at it carefully. "How is that possible? Wondered Priya.
Water is a liquid but hydrogen and oxygen are gases. Next day she asked her science teacher about it. The teacher told her that they will be doing an experiment to understand this better. For this teacher made a set up as shown above.

On the basis of the above experiment, which of the following observation is correct?
I. When electric current passes through water, it decomposes to hydrogen and oxygen.
II. Hydrogen collects at negative terminal and oxygen collects at positive terminal.
III. The ratio of oxygen and hydrogen is 2:1.

Select the appropriate option.

(a) Only I and II are correct.
(b) Only I and III are correct.
(c) Only II and III are correct.
(d) All I, II and III are correct.

Only Correct Answer will be accepted....
Genius or moderators will answer.
@Mathdude500​