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Chemistry

Chemistry
Percentage of lead in lead pencils is

31-66
40
80

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Chemistry
The gas used for artificial fruit ripening of green fruit is

Ethylene
Ethane
Acetylene
Methane

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Chemistry
Milk is a

None of these
Metal
Element
Mixture

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Chemistry
The lightest gas which is non-inflammable is

Nitrogen
Helium
Hydrogen
Oxygen

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Chemistry
Chemically ‘Quick Silver is known as

Aluminium
Mercury
Copper
Silver

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Chemistry
Citric acid is present in free form in

Apple
Lemon
Tamarind
Milk

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MORE MCQ ON Chemistry

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