p-Block Elements — JEE Advanced PYQs

Correct statement(s) about the compounds $\mathbf{X},\mathbf{Y}$ and $\mathbf{Z}$ is (are)
${\mathrm{MnO}}_2+$ Conc. $\mathrm{HCl}\to \mathbf{X}$ (greenish yellow gas)
${\mathrm{NH}}_3+\underset{(\text{ excess })}{\mathbf{X}}⟶\mathbf{Y}$ …

Correct statement(s) about the compounds $\mathbf{P}$, $\mathbf{Q}$ and $\mathbf{R}$ is(are)

$\text{Xe}(g)+{\text{F}}_2(g)\stackrel{873\text{ K},7\text{ bar}}{\to }\mathbf{P}$ (1:5 ratio)

$\mathbf{P}+{\text{O}}_2{\text{F}}_2\stackrel{143\text{ K}}{\to }\mathbf{Q}+{\text{O}}_2$ …

The heating of ${\mathrm{NH}}_4{\mathrm{NO}}_2$ at $60-70^{\circ }\mathrm{C}$ and ${\mathrm{NH}}_4{\mathrm{NO}}_3$ at $200-250^{\circ }\mathrm{C}$ is associated with the formation of nitrogen containing compounds $\mathbf{X}$ and $\mathbf{Y}$, respectively. $\mathbf{X}$ and …

The complete hydrolysis of $\mathrm{ICl}$, ${\mathrm{ClF}}_3$ and ${\mathrm{BrF}}_5$, respectively, gives

The compound(s) with P-H bond(s) is(are)

At room temperature, disproportionation of an aqueous solution of in situ generated nitrous acid (${\mathrm{HNO}}_2$) gives the species

Based on VSEPR model, match the xenon compounds given in List-I with the corresponding geometries and the number of lone pairs on xenon given in List-II and choose the correct option.

List-I
(P) ${\mathrm{XeF}}_2$
(Q) ${\mathrm{XeF}}_4$
(R) ${\mathrm{XeO}}_3$
(S) …

The species formed on fluorination of phosphorus pentachloride in a polar organic solvent are :

The compound(s) having peroxide linkage is(are) :

Match the reactions (in the given stoichiometry of the reactants) in List-I with one of their products given in List-II and choose the correct option.

List-I
(P) ${\mathrm{P}}_2{\mathrm{O}}_3+3{\mathrm{H}}_2\mathrm{O}\to$
(Q) …

Dissolving 1.24 g of white phosphorous in boiling NaOH solution in an inert atmosphere gives a gas $\mathbf{Q}$. The amount of ${\mathrm{CuSO}}_4$ (in g) required to completely consume the gas $\mathbf{Q}$ is ____.
[Given : Atomic mass of …

The treatment of galena with ${\mathrm{HNO}}_3$ produces a gas that is

The reaction of Xe and ${\mathrm{O}}_2{\mathrm{F}}_2$ gives a Xe compound P. The number of moles of HF produced by the complete hydrolysis of 1 mol of $\mathbf{P}$ is ____.

The compound(s) which react(s) with ${\mathrm{NH}}_3$ to give boron nitride (BN) is(are)

The reaction of ${\mathrm{HClO}}_3$ with HCl gives a paramagnetic gas, which upon reaction with ${\mathrm{O}}_3$ produces

The correct statement(s) related to oxoacids of phosphorous is(are)

Ozonolysis of ${\mathrm{ClO}}_2$ produces an oxide of chlorine. The average oxidation state of chlorine in this oxide is ____.

Choose the correct statement(s) among the following.

With respect to hypochlorite, chlorate and perchlorate ions, choose the correct statement(s).

A tin chloride Q undergoes the following reactions (not balanced) …

Among ${\mathrm{B}}_2{\mathrm{H}}_6,{\mathrm{B}}_3{\mathrm{N}}_3{\mathrm{H}}_6,{\mathrm{N}}_2\mathrm{O},{\mathrm{N}}_2{\mathrm{O}}_4,{\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_3$ and ${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_8$, the total number of molecules c …

At 143 K. the reaction of ${\mathrm{XeF}}_4$ with ${\mathrm{O}}_2{\mathrm{F}}_2$ produces a xenon compound $\mathbf{Y}$. The total number of lone pair(s) of electrons present on the whole molecule of $\mathbf{Y}$ is ____

With reference to aqua regia, choose the correct option(s).

The amount of water produced (in g) in the oxidation of 1 mole of rhombic sulphur by conc. ${\mathrm{HNO}}_3$ to a compound with the highest oxidation state of sulphur is ____

(Given data : Molar mass of water $=18\mathrm{g}{\mathrm{mol}}^{-1}$)

The compound(s) which generate(s) ${\mathrm{N}}_2$ gas upon thermal decomposition below 300°C is (are)

Based on the compounds of group 15 elements, the correct statement(s) is (are)

The total number of compounds having at least one bridging oxo group among the molecules given below is ____.

${\mathrm{N}}_2{\mathrm{O}}_3$, ${\mathrm{N}}_2{\mathrm{O}}_5$, ${\mathrm{P}}_4{\mathrm{O}}_6$, ${\mathrm{P}}_4{\mathrm{O}}_7$, …

Upon heating ${\mathrm{KClO}}_3$ in the presence of catalytic amount of ${\mathrm{MnO}}_2$, a gas $\mathbf{W}$ is formed. Excess amount of $\mathbf{W}$ reacts with white phosphorus to give $\mathbf{X}$. The reaction of $\mathbf{X}$ with pure ${\mathrm{HNO}}_3$ gives Y and Z.

W a …

Upon heating ${\mathrm{KClO}}_3$ in the presence of catalytic amount of ${\mathrm{MnO}}_2$, a gas $\mathbf{W}$ is formed. Excess amount of $\mathbf{W}$ reacts with white phosphorus to give $\mathbf{X}$. The reaction of $\mathbf{X}$ with pure ${\mathrm{HNO}}_3$ gives Y and Z.

Y a …

The correct statement(s) about the oxoacids, ${\mathrm{HClO}}_4$ and HClO, is(are)

The colour of the ${\mathrm{X}}_2$ molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to

The increasing order of atomic radii of the following Group 13 elements is

The crystalline form of borax has

The nitrogen containing compound produced in the reaction of ${\mathrm{HNO}}_3$ with ${\mathrm{P}}_4{\mathrm{O}}_{10}$

Three moles of B₂H₆ are completely reacted with methanol. The number of moles of boron containing product formed is

The correct statement(s) regarding, (i) HClO, (ii) HClO₂, (iii) HClO₃ and (iv) HClO₄, is(are)

Under hydrolytic conditions, the compounds used for preparation of linear polymer and for chain termination, respectively, are

The correct statement(s) for orthoboric acid is/are

The product formed in the reaction of ${\mathrm{SOCl}}_2$ with white phosphorous is

Concentrated nitric acid, upon long standing, turns yellow-brown due to the formation of

The correct statement(s) about $O_3$ is(are)

The reactions of ${\mathrm{Cl}}_2$ gas with cold-dilute and hot-concentrated NaOH in water give sodium salts of two (different) oxoacids of chlorine, $\mathbf{P}$ and $\mathbf{Q}$, respectively. The ${\mathrm{Cl}}_2$ gas reacts with $S{O}_2$ gas, in presence of …

The reactions of ${\mathrm{Cl}}_2$ gas with cold-dilute and hot-concentrated NaOH in water give sodium salts of two (different) oxoacids of chlorine, $\mathbf{P}$ and $\mathbf{Q}$, respectively. The ${\mathrm{Cl}}_2$ gas reacts with $S{O}_2$ gas, in presence of …

Bleaching powder and bleach solution are produced on a large scale and used in several household products. The effectiveness of bleach solution is often measured by iodometry.

Bleaching powder contains a salt of an oxoacid as one of its components. The anhydride of that oxoacid …

With respect to graphite and diamond, which of the statement(s) given below is (are) correct ?
(A) Graphite is harder than diamond.
(B) Graphite has higher electrical conductivity than diamond.
(C) Graphite has higher thermal conductivity than diamond.
(D) Graphite has higher C-C …

Extra pure ${\mathrm{N}}_2$ can be obtained by heating

The value of n in the molecular formula ${\mathrm{Be}}_{\mathrm{n}}{\mathrm{Al}}_2{\mathrm{Si}}_6{\mathrm{O}}_{18}$ is

The total number of diprotic acids among the following is
${\mathrm{H}}_3{\mathrm{PO}}_4$
${\mathrm{H}}_2{\mathrm{SO}}_4$
${\mathrm{H}}_3{\mathrm{PO}}_3$
${\mathrm{H}}_2{\mathrm{CO}}_3$
${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_7$ …

The reaction of ${\mathrm{P}}_4$ with X leads selectively to ${\mathrm{P}}_4{\mathrm{O}}_6$. The X is

In the reaction

the amine(s) $\mathbf{X}$ is(are)