Ammonium Chloride Properties and Reactions

The video tutorial explains the properties and behavior of ammonium chloride when heated. It describes the procedure for heating ammonium chloride in a test tube and the observations made, including the evolution of colorless gases with distinct odors. The formation of dense white fumes, identified as ammonium chloride, is explained as a result of sublimation. The chemical reactions between hydrogen chloride and ammonia are detailed, and safety precautions for conducting the experiment are emphasized.

What is the appearance of ammonium chloride?

• A blue liquid

• A white crystalline compound

• A green powder

• A red solid

What is another name for ammonium chloride?

• Salt ammoniac

• Cell ammoniac

• Potassium chloride

• Sodium chloride

What should you do first when heating ammonium chloride?

• Take a small amount of crystalline ammonium chloride

• Mix it with another chemical

• Add water to the test tube

• Place it in a beaker

What is observed when ammonium chloride is heated?

• A colorless gas with an acidic odor

• A red liquid

• A green smoke

• A blue flame

What gas is evolved on stronger heating of ammonium chloride?

• Oxygen

• Nitrogen

• Ammonia

• Carbon dioxide

What happens to moist red litmus paper when exposed to the pungent gas evolved?

• It turns green

• It turns blue

• It turns yellow

• It remains red

What are the dense white fumes observed during the experiment?

• Ammonia

• Water vapor

• Hydrogen chloride

• Ammonium chloride

What safety precaution should be taken while heating the test tube?

• Keep the mouth of the test tube towards your face

• Use a test tube holder or tongs

• Heat the test tube in a closed room

• Hold the test tube with bare hands