Question

$\sf \: For \: \: two \: \: acid \: \: A \: \: and \: \: B \: \: pK_{a} = 1.2\: \: \\ \sf pK_{b} = 2.8 \: \: respectively \: \: in \: \: value \: \: then$
$\sf \: which \: \: is \: \: true$
$1. \: \sf A \: \: and \: \: B \: \: are \: \: equally \: \: acidic$
$2. \sf A \: \: is \: \: stronger \: \: than \: \: B \\ \\ \sf 3. \sf \: B \: \: is \: \: stronger \: \: than \: \: A \\ \\ 4.\sf \: \ \textless \ br /\ \textgreater \ Neither \: \: A \: \: or \: \: B \: \: are \: \: stronger$
​

Answer 1

Answer:

3) b is stronger than a

as the acidity of b is numerically more than a

hope you got the answer!!!

Answer 2

The value of pK a for strong acid is less.

Hence, A is stronger acid than B.