p-Block Elements

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.

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

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

The stoichiometric reaction of 516 g of dimethyldichlorosilane with water results in a tetrameric cyclic product X in 75% yield. The weight (in g) of X obtained is _____.

[Use, molar mass ($\mathrm{g\,mol^{-1}}$): H = 1, C = 12, O = 16, Si = 28, Cl = 35.5]

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.

Consider the following molecules: $\ce{Br3O8}$, $\ce{F2O}$, $\ce{H2S4O6}$, $\ce{H2S5O6}$, and $\ce{C3O2}$.

Count the number of atoms existing in their zero oxidation state in each molecule. Their sum is _____.

Dissolving 1.24 g of white phosphorous in boiling NaOH solution in an inert atmosphere gives a gas Q. The amount of $\ce{CuSO4}$ (in g) required to completely consume the gas Q is _____.

[Given: Atomic mass of H = 1, O = 16, Na = 23, P = 31, S = 32, Cu = 63]

The treatment of galena with $\ce{HNO3}$ produces a gas that is

The reaction of Xe and $\ce{O2F2}$ gives a Xe compound $\mathbf{P}$. The number of moles of HF produced by the complete hydrolysis of 1 mol of $\mathbf{P}$ is ________.

Thermal decomposition of $\ce{AgNO3}$ produces two paramagnetic gases. The total number of electrons present in the antibonding molecular orbitals of the gas that has the higher number of unpaired electrons is ________.

The compound(s) which react(s) with $\ce{NH3}$ to give boron nitride (BN) is(are)

The reaction of $\ce{HClO3}$ with HCl gives a paramagnetic gas, which upon reaction with $\ce{O3}$ produces

The reaction of $\ce{Pb(NO3)2}$ and NaCl in water produces a precipitate that dissolves upon the addition of HCl of appropriate concentration. The dissolution of the precipitate is due to the formation of

Given below are the oxides :

$\mathrm{Na_2O,\ As_2O_3,\ N_2O,\ NO}$ and $\mathrm{Cl_2O_7}$

Number of amphoteric oxides is :

Identify the correct statement for $\mathrm{B_2H_6}$ from those given below.

(A) In $\mathrm{B_2H_6}$, all B-H bonds are equivalent.

(B) In $\mathrm{B_2H_6}$, there are four 3-centre-2-electron bonds.

(C) $\mathrm{B_2H_6}$ is a Lewis acid.

(D) $\mathrm{B_2H_6}$ can be synthesized from both $\mathrm{BF_3}$ and $\mathrm{NaBH_4}$.

(E) $\mathrm{B_2H_6}$ is a planar molecule.

Choose the most appropriate answer from the options given below :

The most stable trihalide of nitrogen is :

Which one of the following elemental forms is not present in the enamel of the teeth ?

$\mathrm{PCl_5}$ is well known, but $\mathrm{NCl_5}$ is not. Because,

Number of electron deficient molecules among the following $\mathrm{PH_3}$, $\mathrm{B_2H_6}$, $\mathrm{CCl_4}$, $\mathrm{NH_3}$, LiH and $\mathrm{BCl_3}$ is

The number of bridged oxygen atoms present in compound B formed from the following reactions is
$$\mathrm{Pb(NO_3)_2\xrightarrow{673\ K}A+PbO+O_2}$$
$$\mathrm{A\xrightarrow{Dimerise}B}$$