P Block Elements in Group 15

Which of the following is low boiling liquid

Which of the following is low boiling liquid Options (a) HF (b) HCl (c) HBr (d) HI Correct Answer: HFExplanation:No…

In which of the following compounds, nitrogen exhibits highest oxidation state

In which of the following compounds, nitrogen exhibits highest oxidation state Options (a) N₂H₄ (b) NH₃ (c) N₃H (d) NH₂OH…

Repeated use of which one of the following fertilizers would increase the

Repeated use of which one of the following fertilizers would increase the acidity of the soil Options (a) Ammonium sulphate…

Which of the statements given below is incorrect

Which of the statements given below is incorrect Options (a) O₃ molecules is bent (b) ONF is isoelectronic with O₂N⁻…

The variation of the boiling points of the hydrogen halides is in the order

The variation of the boiling points of the hydrogen halides is in the order HF > HI > HBr >…

The Formation of the oxide ion, O²⁻ from oxygen atom requires first an exothermic

The Formation of the oxide ion, O²⁻ from oxygen atom requires first an exothermic and then an endothermic step as…

Strong reducing behaviour of H₃PO₂ is due to

Strong reducing behaviour of H₃PO₂ is due to Options (a) high electron gain enthalpy of phosphorus (b) high oxidation state…

Nitrogen dioxide and sulphur dioxide have some properties in common.

Nitrogen dioxide and sulphur dioxide have some properties in common.Which property is shown by one of these compounds, but not…

Acidity of diprotic acids in aqueous solutions increases in the order

Acidity of diprotic acids in aqueous solutions increases in the order Options (a) H₂S < H₂Se < H₂Te (b) H₂Se…

Which of the following displaces Br₂ from an aqueous solution containing bromide

Which of the following displaces Br₂ from an aqueous solution containing bromide ions Options (a) I₂ (b) I⁻₃ (c) Cl₂…