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  4. The solution of Na2CO3 will be:

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Q. The solution of $ Na_{2}CO_{3}$ will be:

Rajasthan PMTRajasthan PMT 2004

Solution:

$Na _{2} CO _{3}$, on hydrolysis gives a strong base $( NaOH )$ and a weak acid $\left( H _{2} CO _{3}\right)$.
Hence, the resulting solution will be weakly basic.
$Na _{2} CO _{3}+2 H _{2} O \rightleftharpoons \underset{\text{Strong}}{2 NaOH} + \underset{\text{weak}}{H _{2} CO _{3}}$