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Supratim Biswas from DPS RUBY PARK KOLKATA, kolkata
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:

Medha Bijjaram from Prime Academy, Mumbai
Class : Class 9

Ans 2:

Daksh Chanani from Sri Sri academy, Kolkata
Class : Class 7

Ans 3:

DAKSH GUPTA from A V B PUBLIC SCHOOL I P EXTENSION PATPARGANJ DELHI, DELHI
Class : Class 8
D IS THE RIGHT ANSWER BECAUSE IN PHYSICAL CHANGE STATE OF A SUBSTANCE CHANGES AND SHAPE OF SUBSTANCE ALSO CHANGES

Ans 4:

Aryan Keswani from Delhi Public School, Mathura Road, New Delhi
Class : Class 10
The answer is D).Happy to Help

Ans 5:

Arhan Shri Gupta from Mayoor Private School, Abu dhabi
Class : Class 7

Ans 6:

Medha Bijjaram from Prime Academy, Mumbai
Class : Class 9

Ans 7:

Medha Bijjaram from Prime Academy, Mumbai
Class : Class 9

Ans 8:

DAKSH GUPTA from A V B PUBLIC SCHOOL I P EXTENSION PATPARGANJ DELHI, DELHI
Class : Class 8
D IS THE RIGHT ANSWER BECAUSE IN PHYSICAL CHANGE STATE OF A SUBSTANCE CHANGES AND SHAPE OF SUBSTANCE ALSO CHANGES

Ans 9:

Hassan ahmad khan from Bal Bhavan School, Bhopal MP
Class : Class 7
d

Ans 10:

Medha Bijjaram from Prime Academy, Mumbai
Class : Class 9

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