Which of the following is aprotic solvent?

Important Questions on The p-Block Elements

MEDIUM

JEE Main/Advance

IMPORTANT

Alpha Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>Exercise-1>Q 127

Ultraviolet radiations from sun light causes a reaction that produces

EASY

JEE Main/Advance

IMPORTANT

Alpha Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>Exercise-1>Q 128

Nitrogen forms a simple diatomic molecule, but other elements of the same group do not form. Explain.

EASY

JEE Main/Advance

IMPORTANT

Alpha Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>Exercise-1>Q 129

White phosphorus is very reactive, but not the red one. Why?

EASY

JEE Main/Advance

IMPORTANT

Alpha Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>Exercise-1>Q 130

Which allotropic form of sulphur is thermodynamically stable at room temperature and pressure?

EASY

JEE Main/Advance

IMPORTANT

Alpha Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>Exercise-1>Q 131

The important source of phosphorus is phosphorite rocks which is mainly phosphates. The same chemical compound is also present in bones. What is the formula of the compound(s).

MEDIUM

JEE Main/Advance

IMPORTANT

Alpha Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>Exercise-1>Q 132

Why is Bi($\mathrm{V}$) a stronger oxidant than Sb($\mathrm{V}$)?

EASY

JEE Main/Advance

IMPORTANT

Alpha Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>Exercise-1>Q 134

The tendency to exhibit $-3$ oxidation state by a group $\mathrm{V} \mathrm{A}$ element, decreases down the group. Why?

EASY

JEE Main/Advance

IMPORTANT

Alpha Question Bank for Engineering: Chemistry>Chapter 19 - The p-Block Elements>Exercise-1>Q 135

Why sulphur in vapour state exhibits paramagnetic behaviour at above $800°\mathrm{C}.$