LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 6

MEDIUM

9th CBSE

IMPORTANT

Earn 100

How is the atomic mass of an element different from the actual mass of an atom?

Important Questions on Atoms and Molecules

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 7

What is the relationship between the number of moles

(n)

and molar mass

(m)

of a substance?

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 8

How many moles of oxygen atoms are present in one mole of

{Fe}_{2} ({SO}_{4})_{3}

.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 8

How many moles of oxygen atoms are present in one mole of

{KMnO}_{4}

.

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9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 8

How many moles of oxygen atoms are present in one mole of

K_{2} {Cr}_{2} O_{7}

.

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 8

How many moles of oxygen atoms are present in one mole of

{Fe}_{2} O_{3}

.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 9

Valencies or the charge numbers of some ions are given below:
Aluminium ion $3$
Potassium ion $1$
Sulphate ion $2$
Magnesium ion $2$
Nitride ion $3$
Fluoride ion $1$

Using the above information, write down the chemical formulae of Aluminium nitride.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 9

Valencies or the charge numbers of some Ions are given below:
Aluminium ion $3$
Potassium ion $1$
Sulphate ion $2$
Magnesium ion $2$
Nitride ion $3$
Fluoride ion $1$

Using the above information, write down the chemical formulae of Magnesium nitride.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 9

Valencies or the charge numbers of some Ions are given below:
Aluminium ion $3$
Potassium ion $1$
Sulphate ion $2$
Magnesium ion $2$
Nitride ion $3$
Fluoride ion $1$

Using the above information, write down the chemical formulae of Aluminium sulphate.