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Chemistry

Chemistry
When formaldehyde and potassium hydroxide are heated, we get

Acetylene
Methyl alcohol
Ethyl formate
Methane

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Chemistry
The gas used in the manufacture of vanaspati from vegetable oil is

nitrogen
carbon dioxide
hydrogen
oxygen

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Chemistry
What particles move around the nucleus of an atom and are negatively charged?

Neutrons
Electrons
Protons
Positrons

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Chemistry
Which one element has the highest electronegativity value

Nitrogen
Chlorine
Fluorine
Lithium

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Chemistry
Electric bulbs are filled with :

Nitrogen
Argon
Oxygen
Carbon dioxide

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Chemistry
If lime water is kept in the air, it turns milky due to presence of :

Carbondioxide
Oxygen
Sulphurdioxide
Nitrogen

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MORE MCQ ON Chemistry

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