SCIENCE TEXTBOOK FOR CLASS IX>Chapter 3 - Atoms and Molecules>Questions>Q 3

MEDIUM

9th CBSE

IMPORTANT

Earn 100

Which postulate of Dalton's atomic theory is the result of the law of conservation of mass?

Important Questions on Atoms and Molecules

MEDIUM

9th CBSE

IMPORTANT

SCIENCE TEXTBOOK FOR CLASS IX>Chapter 3 - Atoms and Molecules>Questions>Q 4

Which postulate of Dalton's atomic theory can explain the law of definite proportions?

MEDIUM

9th CBSE

IMPORTANT

SCIENCE TEXTBOOK FOR CLASS IX>Chapter 3 - Atoms and Molecules>Questions>Q 1

Define the atomic mass unit.

EASY

9th CBSE

IMPORTANT

SCIENCE TEXTBOOK FOR CLASS IX>Chapter 3 - Atoms and Molecules>Questions>Q 2

Why is it not possible to see an atom with naked eyes?

MEDIUM

9th CBSE

IMPORTANT

SCIENCE TEXTBOOK FOR CLASS IX>Chapter 3 - Atoms and Molecules>Questions>Q 1

Write down the formulae of sodium oxide.

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9th CBSE

IMPORTANT

SCIENCE TEXTBOOK FOR CLASS IX>Chapter 3 - Atoms and Molecules>Questions>Q 1

Write down the formula of aluminium chloride.

MEDIUM

9th CBSE

IMPORTANT

SCIENCE TEXTBOOK FOR CLASS IX>Chapter 3 - Atoms and Molecules>Questions>Q 1

Write down the formula of sodium sulphide.

HARD

9th CBSE

IMPORTANT

SCIENCE TEXTBOOK FOR CLASS IX>Chapter 3 - Atoms and Molecules>Questions>Q 1

Write down the formula of magnesium hydroxide.

MEDIUM

9th CBSE

IMPORTANT

SCIENCE TEXTBOOK FOR CLASS IX>Chapter 3 - Atoms and Molecules>Questions>Q 2

Write down the names of compounds represented by the following formulae:
(i)

A l_{2} {(S O_{4})}_{3}

(ii)

C a C l_{2}

(iii)

K_{2} S O_{4}

(iv)

K N O_{3}

(v)

C a C O_{3}