Question

(b) a reaction
(d) none of these
(b) temporary
(d) none of these
B. OBJECTIVE QUESTIONS
1. Choose the correct option from the given options:
1. Changes involve
a. an action
b. interaction
c.a reaction
d.none of these
2. A physical change is
a. permanent
b. both permanent and temporary c.temporary
d.none of these
3. A chemical change involves
a. change in shape
b. change in molecular composition c.change in color
d. none of these
4. An example of a physical change is
a. boiling of water
b. burning of wood c.boiling of an egg
d.making curd
5. An example of a chemical change is
a. glowing of electric bulb
b. crushing an ice cube
c. magnetizing an iron needle
d.to burn a match-stick
6.Occurrence of a solar eclipse is a:
a.periodic change
b.non-periodic change
c.chemical change
d.none of these ​

Answer 1

Answer:

1 action

2c

3change in colour

4making curd

5c

6 none of these