MEDIUM
9th CBSE
IMPORTANT
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Why has the symbol 'amu' been replaced by u?

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Important Questions on Atoms and Molecules

MEDIUM
9th CBSE
IMPORTANT
What do you understand by Gram Molar Volume?
MEDIUM
9th CBSE
IMPORTANT
What do you understand by polyatomic cation?
MEDIUM
9th CBSE
IMPORTANT
How do you define mole in terms of mass?
HARD
9th CBSE
IMPORTANT
Which of the following has maximum number of atoms?
HARD
9th CBSE
IMPORTANT
Which of the following would weigh the highest?
MEDIUM
9th CBSE
IMPORTANT
A change in the physical state can be brought about
MEDIUM
9th CBSE
IMPORTANT
Calculate the number of moles of magnesium present in a magnesium ribbon weighing 12g. The molar atomic mass of magnesium is 24gmol(raise to the power - 1)