Question

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 

(a) (i) only 

(b) (i) and (iii) 

(c) (ii) and (iii) 

(d) (i) and (iv)

Answer 1

The answer is (d) (i) and (iv)

• When acid is mixed with a solution of base it results in neutralization reaction. 
• Neutralization is an exothermic reaction which result in the formation salt