Question

Objective Questions
Choose the correct option.
1. In which of following cases does the substance change?
(a) The burning of paper
(b) The freezing of water
(c) The melting of ice
(d) The formation of water vapour
2. Which of the following is a physical change?
(a) The cooking of food
(b) The digestion of food
(c) The formation of water vapour
(d) The growth of a plant
3. Who gave the periodic table of elements?
(a) Boyle
(b) Mendeleev
(c) Dalton
(d) Lavoisier
4. Who is considered to be the father of modern chemistry?
(a) Mendeleev
(b) Dalton
(d) Priestley
(c) Lavoisier



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Answer 1

Answer:

1no. a) The burning of paper

2no.c)The formation of water vapour

3no.b) Mandeleev

4no.c)Lavoisier

Answer 2

Answer:

1-melting of ice

2-the growth of plant

3-mendeleev

4-mendeleev