Observe the following statements : 
1) H₃BO₃ is used as antiseptic 
2) In B₂H₆, each boron is sp² hybridized 
3) Aqueous solution of borax is alkaline in nature 
The correct statements are :

Statements 1 and 3 are correct. Statement 2 is incorrect.
1) Orthoboric acid is used as an antiseptic, as an eyewash (eye lotion) and as a food preservative.
2) In diborane, each B atom is  sp³ hybridized. This is according to molecular orbital theory.
3) The aqueous solution of borax is alkaline due to hydrolytic decomposition which produces sodium hydroxide (a strong base) and boric acid (a weak acid).
 Na₂​B₄​O₇​+7H₂​O⇌2NaOH+4H₃​BO₃​