Subject :NSO Class : Class 7
Which of the following do not represent that a chemical change is taking place?
I. A gas is produced.
II. Precipitate is formed.
III. State of a substance changes
IV. A new odour is produced.
V. Shape of a substance changes
A I and V only
B I and IV only
C II, III and V only
D III and V only
Ans 1:
Class : Class 7
Ans 2:
Class : Class 8
D IS THE RIGHT ANSWER BECAUSE IN PHYSICAL CHANGE STATE OF A SUBSTANCE CHANGES AND SHAPE OF SUBSTANCE ALSO CHANGES
Ans 3:
Class : Class 10
The answer is D).Happy to Help
Ans 4:
Class : Class 9
Ans 5:
Class : Class 8
D IS THE RIGHT ANSWER BECAUSE IN PHYSICAL CHANGE STATE OF A SUBSTANCE CHANGES AND SHAPE OF SUBSTANCE ALSO CHANGES
Ans 6:
Class : Class 7
d
Ans 7:
Class : Class 9
Ans 8:
Class : Class 9
Ans 9:
Class : Class 9