p-Block Elements

Consider the following reactions :
$$\mathrm{PCl_3+H_2O\rightarrow A+HCl}$$
$$\mathrm{A+H_2O\rightarrow B+HCl}$$
The number of ionisable protons present in the product B is ______.

Choose the correct stability order of group 13 elements in their +1 oxidation state.

Consider the following reaction :
$$\mathrm{2HSO_4^-(aq)\xrightarrow[(2)\ Hydrolysis]{(1)\ Electrolysis}2HSO_4^-+2H^++A}$$
The dihedral angle in product A in its solid phase at 110 K is :

The correct order of melting points of hydrides of group 16 elements is :

Consider the following reaction :
$$\mathrm{A+alkali\rightarrow B\ (Major\ Product)}$$
If B is an oxoacid of phosphorus with no P-H bond, then A is :

The oxide which contains an odd electron at the nitrogen atom is

Match List - I with List - II.

Choose the correct answer from the options given below :

Heating white phosphorus with conc. NaOH solution gives mainly :

The gas produced by treating an aqueous solution of ammonium chloride with sodium nitrite is

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: Flourine forms one oxoacid.

Reason R: Flourine has smallest size amongst all halogens and is highly electronegative.

In the light of the above statements, choose the most appropriate answer from the options given below.

Nitrogen gas is obtained by thermal decomposition of

Given below are two statements :

Statement I : The pentavalent oxide of group-15 element, $\mathrm{E_2O_5}$, is less acidic than trivalent oxide, $\mathrm{E_2O_3}$, of the same element.

Statement II : The acidic character of trivalent oxide of group 15 elements, $\mathrm{E_2O_3}$, decreases down the group.

In light of the above statements, choose most appropriate answer from the options given below :

Match List - I with List - II :

Choose the correct answer from the options given below :

Among the given oxides of nitrogen ; $\mathrm{N_2O}$, $\mathrm{N_2O_3}$, $\mathrm{N_2O_4}$ and $\mathrm{N_2O_5}$, the number of compound/(s) having N - N bond is :

Which of the following oxoacids of sulphur contains "S" in two different oxidation states ?

Match List - I with List - II.

Choose the most appropriate answer from the options given below :

The oxoacid of phosphorus that is easily obtained from a reaction of alkali and white phosphorus and has two P-H bonds, is :

Aqueous solution of which of the following boron compounds will be strongly basic in nature?

$$\mathrm{A\xrightarrow{573\ K}Red\ phosphorus\xrightarrow[under\ pressure]{heat;\ 803\ K}B}$$

Red phosphorus is obtained by heating "A" at 573 K, and can be converted to "B" by heating at 803 K under pressure.

A and B, respectively, are

The geometry around boron in the product 'B' formed from the following reaction is

$$\mathrm{BF_3+NaH\xrightarrow{450\ K}A+NaF}$$
$$\mathrm{A+NMe_3\rightarrow B}$$