Metal carbonates and hydrogen carbonates react with acids to give

Carbon dioxide

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Hydrogen gas

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Sulphur dioxide gas

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Carbon monoxide gas

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
Carbon dioxide

Explanation of correct option:
The correct option is A:
When the metal carbonates and hydrogen carbonates react with the acids, they produce salt and water and liberate the carbon dioxide gas.
$Metalcarbonate + Acid \to Salt + carbondioxide + water$
$MetalHydrogencarbonate + Acid \to Salt + carbondioxide + water$
For example, in the following reactions, the metal carbonate and hydrogen carbonates react with an acid to produce carbon dioxide.
$\underset{Z i n c C a r b o n a t e}{Z n C O_{3} (s)} + \underset{H y d r o c h l o r i c a c i d}{2 H C l (l)} \to \underset{Z i n c C h l o r i d e}{Z n C l_{2} (s)} + \underset{C a r b o n d i o x i d e}{C O_{2} (g)} + \underset{w a t e r}{H_{2} O (l)}$
$\underset{(P o t a s s i u m h y d r o g e n c a r b o n a t e)}{K H C O_{3} (s)} + \underset{(H y d r o c h l o r i c a c i d)}{H C l (a q)} \to \underset{(P o t a s s i u m C h l o r i d e)}{K C l (a q)} + \underset{(W a t e r)}{H_{2} O (l)} + \underset{(C a r b o n d i o x i d e)}{C O_{2} (g)}$
Explanation of incorrect options:
Option B:
Hydrogen is mainly produced when the metal reacts with water. The carbon dioxide is released when the metal carbonate reacts with acid.
For example, $\underset{(S o d i u m)}{2 N a (s)} + \underset{(W a t e r)}{2 H_{2} O (l)} \to \underset{(S o d i u m h y d r o x i d e)}{2 N a O H (a q)} + \underset{(H y d r o g e n)}{H_{2} (g)}$
Option C:
Sulfur dioxide is produced when the metallic sulfite reacts with dilute sulphuric acid.
For example, $\underset{(S o d i u m s u l p h i t e)}{N a_{2} S O_{3} (s)} + \underset{(H y d r o c h l o r i c a c i d)}{2 H C l (a q)} \to \underset{(S o d i u m c h l o r i d e)}{2 N a C l (a q)} + \underset{(S u l p h u r d i o x i d e)}{S O_{2} (g)} + \underset{(W a t e r)}{H_{2} O (l)}$
Option D:
Carbon monoxide is released by the metal oxalate upon heating.
For example, $\underset{(S o d i u m o x a l a t e)}{N a_{2} C_{2} O_{4} (a q)} \to \underset{(S o d i u m c a r b o n a t e)}{N a_{2} C O_{3} (s)} + \underset{(C a r b o n m o n o x i d e)}{C O (g)}$
Final Answer: Metal carbonates and hydrogen carbonates react with acids to give carbon dioxide.

Suggest Corrections