p-Block Elements · Chemistry · KCET

Which of the following halides cannot be hydrolysed?

$\mathrm{NO}_2$ gas is

A metalloid is

What is the oxidation number of $$\mathrm{S}$$ in $$\mathrm{H}_2 \mathrm{S}_2 \mathrm{O}_8$$ ?

Which of the following compound does not give dinitrogen on heating?

The correct decreasing order of basicity of hydrides of group- 15 elements is

Which one of the following oxoacids of phosphorus can reduce $$\mathrm{AgNO}_3$$ to metallic silver?

Which of the following hydrides is electron deficient?

$$\left(\mathrm{NH}_4\right)_2 \mathrm{Cr}_2 \mathrm{O}_7$$ on heating liberates a gas. The same gas will be obtained by

The strong reducing property of hypophosphorus acid is due to

In the detection of II group acid radical, the salt containing chloride is treated with concentrated sulphuric acid, the colourless gas is liberated. The name of the gas is

The number of six membered and five membered rings in Buckminster fullerene respectively is

Which of the following compound on heating gives $$\mathrm{N}_2 \mathrm{O}$$ ?

Which of the following property is true for the given sequence?

$$\mathrm{NH}_3>\mathrm{PH}_3>\mathrm{AsH}_3>\mathrm{SbH}_3>\mathrm{BiH}_3 \text { ? }$$

$$\mathrm{XeF}_6$$ on partial hydrolysis gives a compound $$X$$, which has square pyramidal geometry '$$X$$' is

A colourless, neutral, paramagnetic oxide of nitrogen '$$P$$' on oxidation gives reddish brown gas $$Q$$. $$Q$$ on cooling gives colourless gas $$R$$. $$R$$ on reaction with $$P$$ gives blue solid $$S$$. Identify $$P, Q, R, S$$ respectively

Aqueous solution of a salt $$(A)$$ forms a dense white precipitate with $$\mathrm{BaCl}_2$$ solution. The precipitate dissolves in dilute $$\mathrm{HCl}$$ to produce a gas $$(B)$$ which decolourises acidified $$\mathrm{KMnO}_4$$ solution. $$A$$ and $$B$$ respectively are

Phosphorus pentachloride

The last element of the $$p$$-block in 6 th period is represented by the outer most electronic configuration.

A Lewis acid '$$X$$' reacts with $$\mathrm{LiAlH}_4$$ in ether medium to give a highly toxic gas. This gas when heated with $$\mathrm{NH}_3$$ gives a compound commonly known as inorganic benzene. The gas is

0.1 mole of $$\mathrm{XeF}_6$$ is treated with $$1.8 \mathrm{~g}$$ of water. The product obtained is

The metal nitrate that liberates $$\mathrm{NO}_2$$ on heating