Differences Between Physical and Chemical Changes
Trending Questions
Q. Three substances given below are kept in the open for a few days and some changes were observed.
Which of the substances will show a chemical change?
Which of the substances will show a chemical change?
- Eggs
- Plastic bottle
- Both eggs & moth balls
- All eggs, plastic bottle and moth balls
Q.
One or more new substances are formed during physical change.
- True
- False
Q. Differentiate between physical changes and chemical changes?
Q. Question 7
Which of the following are chemical changes?
(i) Decaying of wood
(ii) Burning of wood
(iii) Sawing of wood
(iv) Hammering of a nail into a piece of wood
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iv)
Which of the following are chemical changes?
(i) Decaying of wood
(ii) Burning of wood
(iii) Sawing of wood
(iv) Hammering of a nail into a piece of wood
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iv)
Q.
What is meant by the term ‘chemical changes’? Give three examples.
Q. Question 6
Which of the following are physical changes?
(i) Melting of iron metal
(ii) Rusting of iron
(iii) Bending of an iron rod
(iv) Drawing a wire of iron metal
(a) (i), (ii) and (iii)
(b) (i), (ii) and (iv)
(c) (i), (iii) and (iv)
(d) (ii), (iii) and (iv)
Which of the following are physical changes?
(i) Melting of iron metal
(ii) Rusting of iron
(iii) Bending of an iron rod
(iv) Drawing a wire of iron metal
(a) (i), (ii) and (iii)
(b) (i), (ii) and (iv)
(c) (i), (iii) and (iv)
(d) (ii), (iii) and (iv)
Q.
Which of the following are chemical changes ?
(i) decaying of wood (ii) burning of wood
(iii) sawing of wood (iv) hammering of nail into wood
(a) (i) and (ii) (b) (ii) and (iii) (c) (iii) and (iv) (d) (i) and (iv)
Q.
Differentiate between physical change and chemical change.
