Chemistry, asked by soniamanchanda97, 8 months ago

pls answer above questions

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Answered by yusufcemaltarik

1

Answer:

10-B 11-A 12-B

Explanation:

Ammonia gas is usually prepared in the laboratory by gently heating ammonium chloride (NH4Cl) and slaked lime [Ca(OH)2].

Ammonia is less dense than air so it is collected by upward delivery or gas syringe method

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