Question

Temporary change is:
(a) burning of coal
(b) burning of candle
(c) glowing of bulb
(d) burning of kerosene

Answer 1

c. glowing of bulb

burning of candle is chemical change but melting of candle wax is physical change

Answer 2

Answer:

Here, Glowing of bulb is the temporary change among the given options.

Explanation:

What is Temporary change?

The changes that occurs and doesn't last for a long time or the change that can be reverted back to the previous state or normal  is known as temporary change. In contrast to the temporary change, permanent change is a change that can not be reverted back to normal.

Some examples of Temporary change  are

• Freezing of water which can be reverted back upon increasing temperature.
• Glowing light bulb which can be reverted back by cutting the electricity off.

Some examples of permanent change are

• Burning of coal
• burning of candle
• burning of kerosene.