If a few drops of a concentrated acid accidentally spill over the hand of a student, what should be done ?

Options

A. Wash the hand with saline solution.
B. Wash the hand immediately with plenty of water and apply paste of sodium hydrogen carbonate.
C. After washing with plenty of water, apply solution of sodium hydroxide on the hand.
D. Neutralize the acid with a strong alkali.

Answer

B

Explanation

If a few drops of a concentrated acid accidentally spills over the hand of a student, then wash the hand immediately with plenty of water and apply a paste of sodium hydrogen carbonate. This is because sodium hydrogen carbonate is a mild non-corrosive base and can be used to neutralise the acid.