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Zinc Ion

Name the gas ...

Question

Name the gas evolved when the following mixtures are heated :
(i) Calcium hydroxide and Ammonium Chloride.
(ii) Sodium Nitrite and Ammonium Chloride.

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Solution

(i) Alkalis reacts with ammonium salts on heating to liberate ammonia gas.
$C a (O H)_{2} + 2 N H_{4} C l \to C a C l_{2} + 2 N H_{3} + H_{2} O$
(ii) When sodium nitrite reats with ammonium chloride nitrogen gas is liberated.
$N a N O_{2} + N H_{4} C l \to N a C l + N_{2} + 2 H_{2} O$

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Q. Name the gas evolved when the mixture of calcium hydroxide and ammonium chloride is heated.

Q. Which gas evolves when ammonium chloride reacts with sodium hydroxide?

Q. Choose the correct word or phrase from the brackets to complete the following sentences:
(i) Heating ammonium chloride with sodium hydroxide produces ...... (ammonia, nitrogen).
(ii) Heating solution of ammonium chloride sodium nitrite produces ...... (ammonia, nitrogen).

Q. Why is the heating solution of ammonium chloride and sodium nitrite discontinued on evolution of nitrogen gas?

Q. Write your observations for the following chemical reaction and name the products formed?
(e) When ammonium chloride is heated with sodium hydroxide.

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