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A compound containing carbon, oxygen & calcium.

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Important Questions on Elements, Compounds & Mixtures

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7th ICSE
IMPORTANT
Simplified Chemistry>Chapter 3 - Elements, Compounds & Mixtures>OBJECTIVE TYPE QUESTIONS>Q 1

A metalloid.

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7th ICSE
IMPORTANT
Simplified Chemistry>Chapter 3 - Elements, Compounds & Mixtures>OBJECTIVE TYPE QUESTIONS>Q 1

A non-metal which exists in the liquid state.

HARD
7th ICSE
IMPORTANT
Simplified Chemistry>Chapter 3 - Elements, Compounds & Mixtures>OBJECTIVE TYPE QUESTIONS>Q 2
The least reactive metal
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7th ICSE
IMPORTANT
Simplified Chemistry>Chapter 3 - Elements, Compounds & Mixtures>OBJECTIVE TYPE QUESTIONS>Q 2
The positively charged particle of an atom.
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7th ICSE
IMPORTANT
Simplified Chemistry>Chapter 3 - Elements, Compounds & Mixtures>OBJECTIVE TYPE QUESTIONS>Q 2
The formula of caustic soda.
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7th ICSE
IMPORTANT
Simplified Chemistry>Chapter 3 - Elements, Compounds & Mixtures>OBJECTIVE TYPE QUESTIONS>Q 2
The ideal method to separate iodine & KCl.
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7th ICSE
IMPORTANT
Simplified Chemistry>Chapter 3 - Elements, Compounds & Mixtures>OBJECTIVE TYPE QUESTIONS>Q 2
A homogeneous mixture.
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7th ICSE
IMPORTANT
Simplified Chemistry>Chapter 3 - Elements, Compounds & Mixtures>OBJECTIVE TYPE QUESTIONS>Q 3
Match the ideal method of separation of components in a mixture in List I with the appropriate process in List II.
List I List II
1. Sand from a mixture of sand & water a. Separating funnel
2. Kerosene from a mixture of kerosene & water b. Sublimation
3. Alcohol from a mixture of methyl alcohol & water c. Filtration
4. Naphthalene from a mixture of naphthalene & lead
chloride		 d. Distillation
5. Pure water from impure water e. Fractional
distillation