Question

4. What happens when a solution pH an acid is mixed with a solution of a base in a test
tube?
(0)
The temperature of the solution increases
6) The temperature of the solution decrease
(ii) The temperature of the solution remain same
(iv) Salt formation takes place
(b) (i) and (iii) only (c) (ii) and (ii)
(a) () only
(d) (i) and (iv)​

Answer 1

Answer:

4 ans

What happens when a solution of an acid is mixed with a solution of a base in a test tube? Explanation: When acid is mixed with a solution of base it results in a neutralization reaction. Neutralization is an exothermic reaction which results in the formation of salt.

Answer 2

Answer: d) i and iv

Explanation:

Reaction of acid and a base is a neutralization reaction. in this reaction acid and  a base combine to form salt and release hydrogen and temperature of the solution increases.

ACID + BASE--------> SALT + HYDROGEN.

eg

HCl + NaOH -----------> NaCl + H2

hydrochloric acid + sodium hydroxide------> sodium chloride + hydrogen