Multiple Choice Questions (MCQs) - Chapter 6 Class 6 - Changes around us

Question 1

When ice-cream melts

1. Heat is lost from the ice-cream
2. Heat is gained by the ice-cream
3. Heat is lost the air
4. Heat is gained by the air

Answer:

Heat is gained by the ice-cream. So , the correct option is B.

Question 2

Which of the following is a reversible change?

1. Boiling of an egg
2. Melting of wax
3. Boiling of alcohol
4. Burning of coal 

Answer:

Melting of wax. So , the correct option is B.

Question 3

When ice melts to form water, then a change occurs on its

1. State
2. Position
3. Temperature
4. Composition

Answer:

When ice melts to form water, then a change occurs in its state.

So , the correct option is A.

Question 4

An irreversible change takes place when

1. Ice melts
2. Salt is added to water
3. Charcoal burns
4. An iron nail is magnetized

Answer:

An irreversible change takes place when Charcoal burn s. So , the correct option is C.

Question 5

Which of the following is a beneficial change?

1. Ripening of fruit
2. Souring of milk
3. Spoilage of food
4. Rusting of an iron object

Answer:

t Ripening of Fruits is a beneficial change.This is because Ripe fruit is tastier to eat than raw food. So , the correct option is A.