What happens when a solution of an acid is mixed with a solution of a base in a test tube?
(i) The temperature of the solution increases.
(ii) The temperature of the solution decreases.
(iii) The temperature of the solution remains the same.
(iv) Salt formation takes place.
1
(i) and (iv)
2
Only (i)
3
(ii) and (iv)
4
(iii) and (iv)