Study the given figure and answer the following questions.
- Which gas is being collected in the gas jar?
- Write the balanced chemical equation for the preparation of this gas.
- Which litmus is used to identify this gas?
- Why the hard glass test tube is slightly inclined?
- What is the use of the lime tower?
Arpit Sundas
·
1 year ago
Solution
1.Ans:
Given diagram is of laboratory preparation of ammonia gas.
Ammonia (\(\rm NH_{3}\)) is being collected in the gas jar.
2.Ans:
The balanced chemical equation for the preparation of this gas is:
\(\rm 2NH_{4}Cl\) + \(\rm Ca(OH)_{2}\) → \(\rm CaCl_{2}\) + \(\rm 2H_{2}O\) + \(\rm 2NH_{3}\)
3.Ans:
Ammonia is basic in nature.
So, A moist red litmus is used to identify the gas. When it is inserted in the jar containing ammonia gas, it turns blue.
4.Ans:
The hard glass tube should be fixed in an inclined position towards its mouth in order to prevent it from cracking.
5.Ans:
The product from the shown experiment should be passe through a lime tower before its collection in the gas jar to absorb its moisture.