NEET Chemistry Classification Of Elements MCQs

The solubility of inert gases increases with increasing pressure.

The solubility of inert gases increases with increasing molecular weight.

The solubility of inert gases decreases with increasing temperature.

The solubility of inert gases increases with increasing temperature.

XeF2

XeF4

XeF6

XeF8

Stable completely filled electronic configuration

High effective nuclear charge

Small atomic size

Presence of d-electrons in the valence shell

He < Ne < Ar < Kr

Kr < Ar < Ne < He

Ar < Kr < He < Ne

Ne < He < Kr < Ar

Helium

Neon

Argon

Krypton

Radon is highly reactive and forms toxic compounds.

Radon is a potent greenhouse gas contributing to climate change.

Radon is radioactive and can decay into harmful alpha particles.

Radon displaces oxygen in the atmosphere, leading to asphyxiation.

Orthophosphoric acid ($H_3PO_4$) is a tribasic acid.

Hypophosphorous acid ($H_3PO_2$) is a tribasic acid.

Pyrophosphoric acid ($H_4P_2O_7$) is a tetrabasic acid.

Phosphorous acid ($H_3PO_3$) is a dibasic acid.

It is an acidic oxide.

It exists as a brown gas at room temperature.

It forms $HNO_3$ when dissolved in water.

In solid state, it exists as $NO_2^+NO_3^-$.

$H_3PO_4$ and $HCl$

$H_3PO_3$ and $HCl$

$H_4P_2O_7$ and $HCl$

$H_3PO_2$ and $HCl$

Phosphorus

Arsenic

Antimony

Bismuth