Question

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

पर्याय

• Wash the hand with saline solution

• Wash the hand immediately with plenty of water and apply a paste of sodium hydrogen carbonate

• After washing hand with plenty of water, apply solution of sodium hydroxide on the hand

• Neutralise the acid with a strong alkali

Answer 1

Wash the hand immediately with plenty of water and apply a paste of sodium hydrogen carbonate

Explanation - 

Washing the hand initially with plenty of water gives partial relief from burning sensation. The paste of sodium hydrogen carbonate completely neutralises the effect of the acid.