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9th CBSE
IMPORTANT
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Which one of the following is a monovalent cation?

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Important Questions on Atoms and Molecules

HARD
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions (MCQ)>Q 7
Which one of the following has more number of molecules?
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9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions (MCQ)>Q 8
The amount of a chemical substance is reported as
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9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions (MCQ)>Q 9
The molar mass of O2 is 32 grams per mole. What is the number of moles in 10 grams of oxygen?
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9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions (MCQ)>Q 10
One mole of N2 is equal to which one of the following?
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9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions (MCQ)>Q 11
Which one is not true about H2SO4?
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9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions (MCQ)>Q 12
The mole in 16 g calcium is 0.4. What is the molar mass of Ca atoms?
EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions (MCQ)>Q 13
The molar mass of Ne atoms is 20gmol. How many moles are there in 100 g of neon?