CBSE Class 10 Science 2019 Delhi Set 2

Question : 6 of 9

Marks: +1, -0

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

- {\H}_2 {\CO}_3

Base

- {\NaOH}

The chemical equation for its formation will be

{\NaOH}↙{\text "Sodium Hydroxide"}+ {\H_2 \CO_3} ↙{\text "HydrogenBicarbonate"↙{\text "or carbonicacid"}}→ {\NaHCO_3}↙{\text "Sodium Hydrogen carbonate"}+ {\H_2 \O}

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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