(1) $H_3BO_3$ is used as antiseptic
(2) In $B_2H_6$, each boron is $sp^2$ hybridized
(3) Aqueous solution of borax is alkaline in nature
The correct statements are :
$\begin {array} {1 1} (1)\;2 \: and \: 3 & \quad (2)\;1,2 \: and \: 3 \\ (3)\;1 \: and \: 3 & \quad (4)\;1 \: and \: 2 \end {array}$
