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Which of the following is the least reactive metal?

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Important Questions on Chemical Reactions

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8th ICSE
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Unravelling Science Chemistry>Chapter 4 - Chemical Reactions>Exercise>Q C
Which of the following reaction requires absorption of light?
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Unravelling Science Chemistry>Chapter 4 - Chemical Reactions>Exercise>Q D

Only one substance is formed after a chemical reaction.

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8th ICSE
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Unravelling Science Chemistry>Chapter 4 - Chemical Reactions>Exercise>Q D
Basic oxides turn blue litmus to red.
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8th ICSE
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Unravelling Science Chemistry>Chapter 4 - Chemical Reactions>Exercise>Q D
Non- metals react with oxygen to form acidic oxides.
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8th ICSE
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Unravelling Science Chemistry>Chapter 4 - Chemical Reactions>Exercise>Q D

Copper is more reactive than zinc as per the metal reactivity series.

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8th ICSE
IMPORTANT
Unravelling Science Chemistry>Chapter 4 - Chemical Reactions>Exercise>Q D

Endothermic change involves the absorption of heat.

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8th ICSE
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Unravelling Science Chemistry>Chapter 4 - Chemical Reactions>Exercise>Q E

Give two examples for the following:

Acidic oxides

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8th ICSE
IMPORTANT
Unravelling Science Chemistry>Chapter 4 - Chemical Reactions>Exercise>Q E

Give two examples for the following:

Combination reactions