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Asked: 2025-10-02T14:01:08+00:00 In:

Study the figure given below and answer the following questions: (A) Name the process depicted in the diagram. (B) Write the composition of gases collected at anode and the cathode. (C) Write the balanced chemical equation of the reaction taking place in this case. (D) The reaction does not take place if a few drops of dilute sulphuric acid are not added to water. Why?

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Study the figure given below and answer the following questions: (A) Name the process depicted in the diagram. (B) Write the composition of gases collected at anode and the cathode. (C) Write the balanced chemical equation of the reaction taking place in this case. (D) The reaction does not take place if a few drops of dilute sulphuric acid are not added to water. Why?

(A) Electrolytic decomposition of water/electrolysis of water. (B) The gas collected at cathode is hydrogen which is double the volume of oxygen collected at anode.

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cbse sample paper class 10 science 2025-26class 10 science half yearly paperfigure given below and answer the following questions
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    1. ANSWER:

      (A) Electrolytic decomposition of water/electrolysis of water.

      (B) The gas collected at cathode is hydrogen which is double the volume of oxygen collected at anode.

      (C) 2H2O (l) + Electric current → 2H2 (g) + O2 (g) When an electric current is passed through water, it undergoes electrolysis. Two molecules of liquid water (2H₂O) decompose to form hydrogen gas (2H₂) and oxygen gas (O₂). Hydrogen collects at the cathode, while oxygen collects at the anode.

      (D) Water is not a good conductor of electricity sulphuric acid is added in the water to make, it a good conductor of electricity.

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