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

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

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

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.