In activity 1.7 what happens in each case of class 10 sciences ncert
Answers
Answer:
(a)The volume of the gas collected in both the test tubes is not the same. The volume of one of the gases, namely, hydrogen, is twice the volume of the gas(oxygen) collected in the other test tube.
(b) When we bring a burning candle close to the mouth of one of the test tube, the gas in the test tube catches fire and burns with a pop sound indicating that the gas in the test tube is hydrogen whereas when a burning candle was introduced into the other test tube, the candle started burning brightly indicating that the test tube contained oxygen because the abundance of oxygen accelerates the combustion reaction. The higher the oxygen concentration is, the more vigorously the candle will burn.
(c)The gas collected at the anode is oxygen and the gas collected at the cathode is hydrogen.
Explanation:
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