If a few drops of a concentrated acid accidentally

Question:

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

(a) Wash the hand with saline solution

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

(c) After washing hand with plenty of water, apply solution of sodium hydroxide on the hand

(d) Neutralise the acid with a strong alkali

Solution:

(b). 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.

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