The p -Block Elements

Kindly go through the solution

HBrO₂ has least existence

Kindly go through the solution

NO is a neutral oxide.

Correct order of reducing character is

NH₃< PH₃< AsH₃< SbH₃< BiH₃

Kindly consider the following figure

Generally, $?iH$ decreases down the group but Pb has higher $?iH$  than Sn due to poor shielding effect of intervening d and f orbitals.

Sulphuric acid, because of its low volatility can be used to manufacture more volatile acids from their corresponding salts.

^{$2MX+H_{2}S{O}_4\to 2HX+M_{2}S{O}_4\left(X=F,Cl,N{O}_3\right)$}

Due to inert pair effect Tl shows +1 oxidation state.

$\underset{acid}{H_{3}B{O}_3}+2H_{2}O\underset{conjugatebase}{B{\left(OH\right)}_4^{-}+}{H}_3{O}^{+}$

Correct order or atomic radii is

Tl > ln > Al > Ga > B