The rate law for the reaction below is given by the expression k [A] [B]

A + B $$ \to $$ Product

If the concentration of B is increased from 0.1 to 0.3 mole, keeping the value of A at 0.1 mole, the rate constant will be :

The bond angle H - X - H is the greatest in the compound :

Observation of “Rhumann’s purple” is a confirmatory test for the presence of :

Fluorination of an aromatic ring is easily accomplished by treating a diazonium salt with HBF₄. Which of the following conditions is correct about this reaction ?