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Laboratory Method of Hydrogen Gas Preparation

Which among t...

Question

Which among the following can be used to remove sulphur dioxide gas during the purification of hydrogen gas?

A

Silver nitrate solution

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B

Lead nitrate solution

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C

Dry gas

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D

Caustic potash solution

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Solution

The correct option is D Caustic potash solution
Hydrogen gas prepared in laboratory contains impurities like $S O_{2}$ , $C O_{2}$ and $N O_{2}$ as impurities. Sulphur dioxide can be removed by passing it through the caustic potash solution. $S O_{2} (g) + 2 K O H (a q) ⟶ K_{2} S O_{3} (a q) + H_{2} O (l)$

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Similar questions

In laboratory preparation of Hydrogen, $H_{2} S$ is removed from the obtained gas by passing it through:

Q. Given below are word equations. Convert them into chemical equations using symbols and valencies. Balance the equations. Use appropriate signs for gases and precipitates in the reaction.
i) Zinc Sulphide

+

\to

Zinc oxide solid

+

Sulphur dioxide gas
ii) Silver nitrate solution

+

Sodium chloride solution

\to

Silver chloride precipitate

+

Sodium nitrate solution
iii) Sulphur solid

+

Concentrated nitric acid

\to

+

Nitrogen dioxide gas

+

Water
iv) Barium chloride Solution

+

Potassium sulphate Solution

\to

Barium sulphate Precipitate

+

Potassium chloride solution
v) Silver nitrate on heating

\to

+

nitrogen dioxide gas

+

Oxygen gas.
vi) Aluminium hydroxide

+

\to

Aluminium nitrate

+

Which metallic spoon can be used to stir lead nitrate solution?

Q. Give equations for the following conversions:
(i) Sodium to sodium hydroxide using water.
(ii) Steam to hydrogen using burning magnesium.
(iii) Dilute sulphuric acid to hydrogen using zinc.
(iv) Mercuric oxide to mercury.
(v) Silver oxide to silver.
(vi) Copper hydroxide to copper oxide.
(vii) Calcium hydroxide to calcium oxide.
(viii) Lead carbonate to lead.
(ix) Potassium nitrate to oxygen.
(x) Copper nitrate to nitrogen dioxide.
(xi) Mercuric nitrate to mercury.
(xii) Silver nitrate to silver.

Q. (a) Hydrogen chloride solution in water turns blue litmus red and conducts electricity, while in toluene it does not. Explain why?
(b) Correct the following statement: HCl gas is not combustible but it supports combustion.
(c) Which of the following gas gives a white precipitate when reacted with silver nitrate solution acidified with dilute nitric acid?
(i) Ammonia
(ii) Hydrogen chloride
(iii) Hydrogen sulphide
(iv) Sulphur dioxide [3 MARKS]

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