Question

b)
0.1 Choose
Choose the correct answer:
1. A chemical change may involve:
a) change in colour only
change in temperature only
c) evolution of gas only
any or all of the above
2. Chemical change that is accompanied by absorption of heat energy is:
a) physical chemical change.
exothermic chemical change
endothermic chemical change. d) none of these.
3. Which among the following is not a type of silk?
a) Mulberry silk
Tassar silk
c) Mooga silk
Moth silk
4 Silkwarms secrete fibre made of:
A)cellulose
B)protein
C)nylon
D)fat

Answer 1

1)all of these

2)endothermic chemical change

3)Mooga silk

4) cellulose

hope this answer useful to you mate