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Q.

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 

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a

I and IV only

b

I and V only 

c

II, III and V only

d

III and V only

answer is C.

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Detailed Solution

Change in the state and shape of the substance is a part of physical changes.  

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