p-Block Element...

Which one of the following gases has the highest solubility in water?

A gas X with disagreeable odour reduces silver nitrate solution to give metallic silver and is itself oxidised to Y. Y is a dibasic acid with reducing properties. It is slowly oxidised in air to a tribasic acid Z. Though Z is a tribasic acid, it behaves in aqueous solution mostly as a dibasic acid. When a mixture of X and N₂O is subjected to electric spark, Z is obtained.

Y is

Xe and F₂ heated in molar ratio 1 : 20 at 400^oC give a compound X. X reacts slowly with atmospheric moisture to give Y and HF. When X reacts with small quantity of water, we get a product Z. Z can also be obtained by the interaction of X with silica. Y reacts with X to give Z. But Y and Z react to give XeO₂F₂.

The compound X is

When nitric acid is reduced by a metal, a coloured gas is formed. Identify the colour and the gas formed.

PCl₅ is possible but NCl₅ does not exist because

Oxide of which of the following metals gives oxygen on moderate heating?

Choose the product(s) formed when sulphur trioxide is heated with heavy water.

Assertion (A): Molecular nitrogen is less reactive than molecular oxygen.
Reason (R): The bond length of N₂ is shorter than that of oxygen.

Moist iodine is oxidized by ozone into which of the following compounds?