CBSE Class 10 Science 2019 Delhi Set 2

Question : 6

Total: 9

Identify the acid and base which form sodium hydrogen carbonate. Write chemical equation in support of your answer. State whether this compound is acidic, basic or neutral. Also write its pH value.

Solution:

The acid and base that forms sodium hydrogen carbonate are as follows:
Acid −H2CO3
Base −NaOH
The chemical equation for its formation will be

NaOH

Sodium Hydroxide

H2CO3

HydrogenBicarbonate

or carbonicacid

→

NaHCO3

Sodium Hydrogen carbonate

+H2O

The compound will be basic and its pH value will be around 8 or in the range between 7 and 10.

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