Foundation level I NEET Mock Test 3(Chemistry)

The boiling of rice is a ____ change

• Reversible

• Irreversibe

• Biological
• Psychological

Burning of fuel is a example of _____ change

• Physical
• Chemical
• Biological
• Geographical

Melting of chocolate is a______ change

• Chemical change
• Physical change
• Biological change
• Geographical change

Select the example for irreversible physical change from the given options

• Melting of ice
• Boiling of water
• Mixing sugar in water
• Breaking of a glass pane

Bursting of a balloon is a example of ____ change

• Irreversible

• Chemical
• Biological
• Nuclear

Which of the following changes can be reversed______

• Melting of ice
• Burning of wood
• Rusting of iron
• Baking a cake

A bag of cement lying in the open gets wet due to rain during the night. The next day the sun shines. Do you think the changes, which have occurred in the cement could be reversed

• Yes, the changes can be reversed by drying the cement in the sun
• No, the changes cannot be reversed as the cement has hardened
• Yes, the changes can be reversed by adding more water to the cement
• Yes, the changes can be reversed by adding more cement to the mixture

A physical change is a/ an ____

• Change in the chemical composition of a substance
• Change in the state without any change in molecular composition

• Change that involves the formation of a new substance
• Change that always involves a change in energy

In general, on heating metals_____

• Contract

• Expand

• Can expand or contact

• None of these

Which of the following is a Reversible change?

• Burning of wood
• Melting of ice
• Burning of match stick

• Germination of seed