Question

Which of the following reactions is an endothermic reaction?
i) Burning of coal.
ii) Decomposition of vegetable matter into compost.
iii) Process of respiration.
iv) Decomposition of calcium carbonate to form quick lime and carbon dioxide.​

Answer 1

Answer:

i think it is 3rd.

MARK IT AS BRAINLIEST...;)

Answer 2

Answer:

iv) decomposition of calcium carbonate to form quick lime and carbon dioxide.