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9th Foundation
IMPORTANT
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Which of the following molecules contains highest number of particles?

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Important Questions on Atoms and Molecules

HARD
9th Foundation
IMPORTANT
NSO Science Olympiad Workbook Grade 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 19

The graphical representation of number of molecules of different gases is given. Which gases are placed at correct position?

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HARD
9th Foundation
IMPORTANT
NSO Science Olympiad Workbook Grade 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 20
Sulphate of a divalent metal M exists in hydrated form. If 0.10 mol of metal sulphate combines with 9.0 g of water to form the hydrated salt then, the formula of metal sulphate will be