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Chemistry

Chemistry
In ice, the number of hydrogen bonds per water molecule is

2
4
8
1

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Chemistry
The gas used in the artificial ripening of fruits is

Butane
Ethane
Acetylene
Methane

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Chemistry
The value of Avogadro Number is

6.023 × 1025
6.023 × 1024
6.023 × 1022
6.023 × 1023

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Chemistry
The chemical used for cloud seeding for artificial rains is

Silver Iodide
Silver Nitrate
Potassium Nitrate
Potassium Bromide

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Chemistry
Cement is made hard with

Dissociation of water
Hydration and dissociation of water
Dehydration
Polymerisation

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Chemistry
Cement containing excess amount of lime

Is quick setting
Becomes more strong
Is slow setting
Cracks during setting

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MORE MCQ ON Chemistry

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