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9th CBSE
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Air is a mixture.

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Important Questions on Is Matter Around Us Pure?

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9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>CHECK YOUR PROGRESS>Q 9

Clean air is a _____ mixture.

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9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>CHECK YOUR PROGRESS>Q 10
Carbon is an element, smoke is a mixture and ice is a compound.
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9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>CHECK YOUR PROGRESS>Q 10
Coal is an element.
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9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>CHECK YOUR PROGRESS>Q 10
Benzene is a compound and it contains carbon and hydrogen.
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9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>CHECK YOUR PROGRESS>Q 10
Brass is a mixture of two elements copper and tin.
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9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>CHECK YOUR PROGRESS>Q 10

Hydrogen is the most abundant element in the earth’s crust.

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9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>CHECK YOUR PROGRESS>Q 10

A solution of glucose in water is a homogeneous mixture.

HARD
9th CBSE
IMPORTANT
LIVING SCIENCE CHEMISTRY 9>Chapter 2 - Is Matter Around Us Pure?>CHECK YOUR PROGRESS>Q 1
A solution of hydrochloric acid is labeled as 60% (m/v). The density of the solution is 1.1 g ml-1. Calculate the concentration of the solution in % (m/m).