Question

1. A change is said to be endothermic when
i. heat is absorbed
ii. heat is evolved
iii. heat is absorbed as well as evolved
iv. no change in heat occurs
2. Which of the following is an irreversible change?
ii. solidification of molten wax
i. melting of wax
iv. burning of wax
iii. moulding molten wax
​

Answer 1

Answer:

☆A change is said to be endothermic when heat is absorbed......

☆Burning of wax is an irreversible change.....

♡♡

Answer 2

$\huge {\underline {\underline {\mathbb {\red {Answer}}}}}$

1. heat is absorbed☑
2. burning of wax☑

Thanks.…✌✌