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# Assertion: $Be{(OH)_2}$ dissolves in excess $NaOH$ solution.Reason: $Be{(OH)_2}$ is an acidic compound.A.Both assertion and reason re correct and reason is the correct explanation for assertionB.Both assertion and reason are correct but reason is not the correct explanation for assertionC.Assertion is correct but reason is incorrectD.Assertion is incorrect but reason is correct

Last updated date: 23rd Mar 2023
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Hint: Acids are defined or known as those compounds which on dissolving and reacting in water give hydrogen ions. Bases are defined as those substances or compounds which when dissolved or reacted with water give out hydroxide ion. These are tested by litmus test and various indicators.

Now beryllium reacts readily with excess sodium hydroxide to form beryllium hydroxide which on further reaction with sodium hydroxide gives out $N{a_2}Be{(OH)_4}$. Let’s do the litmus test of the compound and it comes out to be basic which is red litmus blue.