Suggest a reason as to why CO is poisonous.

Suggest reasons why the B-F bonds lengths in BF_3 (130 pm) and BF_4^- (143 pm ) differ.

Suggest reasons why the only binary compounds of the noble gases are fluorides and oxides of Kr ,Xe and Rn ?

Suggest a reason why HF is a weak acid, whereas binary acids of the all other halogens are strong acids.

Suggest reasons why the B-F bonds lengths in BF_3(1.3A^@) and BF_4^(-) (1.43 A^@) differ.

What are the suggested reasons for the population explosion?

Suggest reason why excess mineral acid is used in diazo reaction.

Assertion (A) : The presence of CO_(2) in the air accelerates corrosion. Reason (R): CO_(2) is a poisonous gas.