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IMPORTANT
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Chemical name of caustic soda is .

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Important Questions on Atoms, Molecules and Radicals

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7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 4 - Atoms, Molecules and Radicals>OBJECTIVE TYPE QUESTIONS>Q 2
The valency of iron in Fe2O3 is
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7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 4 - Atoms, Molecules and Radicals>OBJECTIVE TYPE QUESTIONS>Q 2
Which of the following has valency 4?
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7th ICSE
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Concise Chemistry Middle School for Class 7>Chapter 4 - Atoms, Molecules and Radicals>OBJECTIVE TYPE QUESTIONS>Q 2
The sulphate radical is written as SO42-. What is the formula of calcium sulphate?
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7th ICSE
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Concise Chemistry Middle School for Class 7>Chapter 4 - Atoms, Molecules and Radicals>OBJECTIVE TYPE QUESTIONS>Q 2
Which of the following exhibits variable valency?
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Concise Chemistry Middle School for Class 7>Chapter 4 - Atoms, Molecules and Radicals>OBJECTIVE TYPE QUESTIONS>Q 3

The number of atoms present in a molecule of an element is called its _____.

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7th ICSE
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Concise Chemistry Middle School for Class 7>Chapter 4 - Atoms, Molecules and Radicals>OBJECTIVE TYPE QUESTIONS>Q 3

The symbolic representation of a molecule is called its _____. (molecular formula / ionic formula)

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7th ICSE
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Concise Chemistry Middle School for Class 7>Chapter 4 - Atoms, Molecules and Radicals>OBJECTIVE TYPE QUESTIONS>Q 3

A group of atoms that react as a single unit is known as _____.

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7th ICSE
IMPORTANT
Concise Chemistry Middle School for Class 7>Chapter 4 - Atoms, Molecules and Radicals>OBJECTIVE TYPE QUESTIONS>Q 3

The combining capacity of an element is known as _____.