Which of the following reactions are exothermic in nature?

Evaporation of water

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Dissolution of sodium hydroxide in water

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Dilution of sulphuric acid

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Combustion of methane gas

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct options are
B Dissolution of sodium hydroxide in water
C Dilution of sulphuric acid
D Combustion of methane gas
Dissolution of sodium hydroxide in water, dilution of sulphuric acid and combustion of methane gas are exothermic reactions in which a large amount of heat is released.

Evaporation of water is endothermic reaction in which heat is absorbed.

Suggest Corrections

Similar questions

Which of the following reactions are exothermic in nature?

(i) Evaporation of water
(ii) Dissolution of sodium hydroxide in water
(iii) Dilution of sulphuric acid
(iv) Dissolution of ammonium chloride in water
(v) Combustion of methane gas

Which among the following changes are exothermic or endothermic in nature?

(a) Decomposition of ferrous sulphate

(b) Dilution of sulphuric acid

(d) Dissolution of ammonium chloride in water

Question 22
Which among the following changes are exothermic or endothermic in nature?

(a) Decomposition of ferrous sulphate

(b) Dilution of sulphuric acid

(d) Dissolution of ammonium chloride in water

Question 22
Which among the following changes are exothermic or endothermic in nature?

(a) Decomposition of ferrous sulphate

(b) Dilution of sulphuric acid

(d) Dissolution of ammonium chloride in water

Q. In a laboratory preparation of hydrogen gas, what would happen (write chemical reactions) if the following changes are made?
1) in place of zinc granules, same amount of zinc dust is taken in test tube
2) instead of dilute sulphuric acid, hydrochloric acid is taken
3) In place of zinc, copper turning are taken
4) sodium hydroxide is taken in place of sulphuric acid and tube is heated

Join BYJU'S Learning Program