Question

Match the following.

Answer 1

$a)$ absorption of energy $-$ it is a endothermic change as it takes energy from the surrounding and hence the surrounding becomes cool.

$\left(b\right)$ Curdling of milk is chemical change because some chemical reaction takes place which is irreversible.

$\left(c\right)$ glowing of electric bulb $-$ physical change

$\left(d\right)$ releasing of energy $-$ exothermic reaction because energy is released and surrounding becomes hot.