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Question
During the electrolysis of a saturated solution of sodium chloride, where is:
hydrogen formed?
Solution
During the electrolysis of a saturated solution of sodium chloride,
hydrogen gas is produced at the cathode (negative electrode);
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RELATED QUESTIONS
We need 20% aqueous solution of sodium hydroxide for the study of saponification reaction. When we open the lid of the bottle containing solid sodium hydroxide we observe it in which form?
(A) Colourless transparent beads
(B) Small white beads
(C) White pellets/flakes
(D) Fine white powder
Explain by taking the example of hydrochloric acid and sodium hydroxide. Give equation of the chemical reaction which takes place. What is the special name of such a reaction?
The electrolysis of an aqueous solution of sodium chloride gives us three products. Name them.
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A student prepared 20% sodium hydroxide solution in a beaker containing water. The observations noted by him are given below.
I. Sodium hydroxide is in the form of pellets.
II. It dissolves in water readily.
III. The beaker appears cold when touched from outside.
IV. The red litmus paper turns blue when dipped into the solution.
The correct observations are:
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(B) II, III and IV
(C) III, IV and I
(D) I, II and IV
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