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7th CBSE
IMPORTANT
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Magnesium hydroxide is an acid.

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Important Questions on Chemical Substances and Processes

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7th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 3 - Chemical Substances and Processes>Something To Know>Q 1
The chemical symbol Ag represents the element _____
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7th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 3 - Chemical Substances and Processes>Something To Know>Q 2
One molecule of nitric acid is made up of
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7th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 3 - Chemical Substances and Processes>Something To Know>Q 3
The chemical formula of magnesium phosphate is
EASY
7th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 3 - Chemical Substances and Processes>Something To Know>Q 4

The following reaction is an example of a _____.

Fe(s)+CuSO4(aq)→FeSO4(aq)+Cu(s).

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7th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 3 - Chemical Substances and Processes>Something To Know>Q 5
The chemical formula of quicklime is
EASY
7th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 3 - Chemical Substances and Processes>Something To Know>Q 1
What are elements?
EASY
7th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 3 - Chemical Substances and Processes>Something To Know>Q 2
Give the chemical symbol of iron and chlorine.
EASY
7th CBSE
IMPORTANT
The Living World A book of Science and Technology>Chapter 3 - Chemical Substances and Processes>Something To Know>Q 3
Write the chemical formulae of the following compounds: Aluminium oxide.