Group 15

The correct set that contains all kinds (basic, acidic, amphoteric and neutral) of oxides is :

Correct statements from the following are:

A. Nitrogen in oxidation states from +1 to +4 disproportionates in acid medium.

B. Nitrogen has the ability to form dπ - pπ multiple bonds with itself and other elements with small size and high electronegativity.

C. N-N single bond is stronger than P-P single bond.

D. Nitrogen has highest density in its group due to small size.

E. The maximum covalency of nitrogen is four since it has only four valence orbitals for bonding.

Choose the correct answer from the options given below:

Find the correct statements related to group 15 hydrides.

A. Reducing nature increases from $\ce{NH3}$ to $\ce{BiH3}$

B. Tendency to donate lone pair of electrons decreases from $\ce{NH3}$ to $\ce{BiH3}$

C. The stability of hydrides decreases from $\ce{NH3}$ to $\ce{BiH3}$

D. HEH bond angle decreases from $\ce{NH3}$ to $\ce{SbH3}$ (E = Elements of group 15)

Choose the correct answer from the options given below :

The heating of $\ce{NH4NO2}$ at 60−70 °C and $\ce{NH4NO3}$ at 200−250 °C is associated with the formation of nitrogen containing compounds X and Y, respectively. X and Y, respectively, are

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

At room temperature, disproportionation of an aqueous solution of in situ generated nitrous acid ($\ce{HNO2}$) gives the species

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

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

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 ________.

Given below are the oxides :

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

Number of amphoteric oxides is :

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,

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

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 ______.

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

Heating white phosphorus with conc. NaOH solution gives mainly :