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pinki kashyap from kids r kids, Chandigarh
Subject :NSO    Class : Class 6

Ram, a class 6 student observed different types of changes and tabulated them in the given table.

Which of the given observations are incorrect?

A1, 4 only
B2, 3 and 5 only
C2 and 3 only
D2 and 5 only


why answer should be B and not c

Ans 1:

Shomili from Global Indian International School, Singapore
Class : Class 9
Because making of milk to curd is a chemical change and not physical change as :- A new substance is formed, It is irreversible and permanent, It's chemical components are changed, There is energy loss while making it.

Ans 2:

khushi Joshi from Svkm , Mumbai
Class : Class 10
The answer is C

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