A student accidently spilled concentrated H2SO4 on his hand. Before the teacher got to know, his friend washed his hands with water and also with soap but the burning sensation on hand still continued. His friend then rubbed solid sodium bicarbonate on his hand and then washed with water finally the burning sensation is relieved.
Answer the following questions based on the above situation:
(i) Mention the values shown by student's friend.
(ii) Can you recommend any other substance available in the laboratory which can be used instead of sodium bicarbonate?
(iii) Write the chemical reaction involved in the treatment of acid burn with sodium bicarbonate.