Question

7. Paheli's mother made a concentrated sugar syrup by sugar in hot solution On cooling crystals of sugar got separated. This indicates a
a. Physical change that can be reversed b. Chemical change that can be reversed c. Physical change that cannot be reversed
d. Chemical change that can not be reversed.

8. Choose the odd one from the following options ---- a. Thick layer of fat under the skin b. White fur c. Long grasping tail d. Wide and large feet with sharp claws.

9.Name two animals each that live in polar region and tropical rainforest 10. Which one of following place is unlikely to be affected by a cyclone. a. Chennai b. Mangalore C. Amritsar d. Puri. SECTION -B -​

Answer 1

Answer:

Answer: (a) a physical change that can be reversed.

A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. A Physical change affects only physical properties, i.e. shape, size, etc.

In the given case sugar can be separated from a supersaturated solution hence it is a reversible change.