The set up of diagram shown below is used to prepare dry nitrogen gas from air. Study it and answer the questions that follow.

The set up of diagram shown below is used to prepare dry nitrogen gas from air. Study it and answer the questions that follow.

(a) What is the purpose of using:
(i) A burning candle.
(ii) Sodium hydroxide solution.
(b) Name:
(i) One impurity present in nitrogen gas prepared.
(ii) A suitable drying agent used.

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(a) (i) It is used to remove oxygen from air.
(ii) It removes CO₂ produced by the burning candle and also from air.
(b) (i) Argon/Neon/Krypton.
(ii) Concentrated sulphuric (VI) acid.

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sharon kalunda answered the question on March 28, 2019 at 06:51

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