State whether the statement is True or False:

$A l {(O H)}_{3}$ solid is soluble in aqueous solution of $N a O H$ .

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Solution

Due to the following acid-base reaction, $A l (O H)_{3}$ is soluble in NaOH

$N a O H \to N a^{+} (a q) + O H^{-} (a q)$

$A l {(O H)}_{3} (s) + {O H}^{-} (a q) ⟶ A l {(O H)}_{4}^{-} (a q)$ .

$∴$ The statement is true.

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State whether the statement is True or False:Al(OH)3 solid is soluble in aqueous solution of NaOH.

Due to the following acid-base reaction, Al(OH)3 is soluble in NaOHNaOH→Na+(aq)+OH−(aq)Al(OH)3(s)+OH−(aq)⟶Al(OH)−4(aq).∴ The statement is true.

State whether the statement is True or False:

$A l {(O H)}_{3}$ solid is soluble in aqueous solution of $N a O H$ .

Due to the following acid-base reaction, $A l (O H)_{3}$ is soluble in NaOH

$N a O H \to N a^{+} (a q) + O H^{-} (a q)$

$A l {(O H)}_{3} (s) + {O H}^{-} (a q) ⟶ A l {(O H)}_{4}^{-} (a q)$ .

$∴$ The statement is true.