Question

Write the answers given in the options:-
1. Chemistry is a branch of science which deals with the help of study
a. plants
b. animals
c. characteristics and composition of substances.
d. the earth
2. The periodic law was formulated by
a. Lavoisier
b. Mendeleev
c. Dalton
d. Rutherford
3. An example of a petrochemical is
a. steel
b. kerosene
c. brick
d. silk
4. Silicon and germanium find use in
a. electronics
b. explosives
c. fertilizers
d. mortar
5. An example of explosives is
a. trinitrotoluene
b. paracetamol
c. saccharin
d. coal
​

Answer 1

Answer:

1. (c) characteristics and composition of plants.
2. (b) Mendeleev.
3. (b) kerosene .
4. (a) electronics.
5. (a) trinitrotoluene (TNT).

Explanation:

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Answer 2

1. c

2. b

3. b

4. a

5. a

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