scipitutor
Ten > Classification of Elements
Asked by Basanta · 2 years ago

NH$_3$, H$_2$, and CO$_2$ are important gases used in industries and daily life as well.

  1. Which gas can form potassium carbonate when passed in KOH solution?
  2. Which of them can be used to prepare weak alkali?

visibility 0
chat_bubble_outline 1
Arpit Sundas Arpit Sundas · 1 year ago
Verified

Solution

1.Ans: 

Carbon dioxide (\(\rm CO_2 \)) can form potassium carbonate when passed in KOH solution.

\(\rm CO_2 \) + \(\rm 2KOH \) → \(\rm K_2CO_3 \) + \(\rm H_2O \)

2.Ans:

 Among ammonia, hydrogen, and carbon dioxide, ammonia (\(\rm NH_3 \)) can be used to prepare a weak alkali.

  When ammonia dissolves in water, it reacts to form ammonium ions (\(\rm NH_4^+\)) and hydroxide ions (\(\rm OH^-\)), which is a character of weak alkalis. 

0