Select the correct statements from the follow | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) ) Incorrect: Aluminium is amphoteric and reacts with both $HCl$ and $NaOH$ to liberate $H_2$ gas.$B$) Incorrect: The formula of sodium metaborate

Vedclass · Accepted Answer

$C$ & $D$

Vedclass · Answer

(C) ) Incorrect: Aluminium is amphoteric and reacts with both $HCl$ and $NaOH$ to liberate $H_2$ gas.$B$) Incorrect: The formula of sodium metaborate is $NaBO_2$. $Na_3BO_3$ is sodium orthoborate.$C$) Correct: Boric acid $(H_3BO_3)$ acts as a weak monobasic Lewis acid by accepting $OH^-$ from water: $B(OH)_3 + 2H_2O \rightarrow [B(OH)_4]^- + H_3O^+$.$D$) Correct: Due to the inert pair effect,the stability of the $+1$ oxidation state increases down the group $13$ $(Al < Ga < In < Tl)$,making $Tl^+$ more stable than $Tl^{3+}$.

Select the correct statements from the following:
$A$) Aluminium liberates $H_2$ gas with dil. $HCl$ but not with aqueous $NaOH$.
$B$) Formula of sodium metaborate is $Na_3BO_3$.
$C$) Boric acid is a weak monobasic acid.
$D$) For thallium,$+1$ state is more stable than $+3$ state.

Similar Questions

Explain what happens when boric acid is heated.

What is the correct order of Lewis acidic strength for boron trihalides?

When an excess of $NaOH$ solution is added to a solution of potassium alum,what do we obtain?

In the following reaction,identify the nature of the product formed by the complete hydrolysis of the underlined atom at $R.T.$:
$\underline{B}Cl_3 + 3H_2O \longrightarrow H_3BO_3 + 3HCl$

The set of amphoteric oxides among the given oxides are $Ga_2O_3, As_4O_{10}, Sb_4O_{10}, B_2O_3, Tl_2O$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Select the correct statements from the following:$A$) Aluminium liberates $H_2$ gas with dil. $HCl$ but not with aqueous $NaOH$.$B$) Formula of sodium metaborate is $Na_3BO_3$.$C$) Boric acid is a weak monobasic acid.$D$) For thallium,$+1$ state is more stable than $+3$ state.