Which among the following salts turns blue li | vedclass

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(A) salt that turns blue litmus red in an aqueous solution must be acidic in nature.$CuSO_4$ is a salt of a strong acid $(H_2SO_4)$ and a weak base $(

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$CuSO_4$

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(A) salt that turns blue litmus red in an aqueous solution must be acidic in nature.$CuSO_4$ is a salt of a strong acid $(H_2SO_4)$ and a weak base $(Cu(OH)_2)$.In aqueous solution,$Cu^{2+}$ ions undergo hydrolysis: $Cu^{2+} + 2H_2O \rightleftharpoons Cu(OH)_2 + 2H^+$.The release of $H^+$ ions makes the solution acidic,which turns blue litmus red.$Na_2CO_3$ is a salt of a weak acid $(H_2CO_3)$ and a strong base $(NaOH)$,making it basic.$Na_2SO_4$ and $NaNO_3$ are salts of strong acids and strong bases,making them neutral.

Which among the following salts turns blue litmus red in its aqueous solution?

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Which of the following salts contains an anion that undergoes hydrolysis?

Arrange the aqueous solutions of the following salts in the increasing order of their $pH$.
$I$. $CuSO_4$
$II$. $NaCN$
$III$. $KCl$

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