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Chemistry

Chemistry
The metal present in vitamin B12 is

Co
Fe
Mo
Mg

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Chemistry
Quartz is made of

Calcium Silicate
Calcium Sulphate
Sodium Silicate
Sodium Sulphate

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Chemistry
The anode of a dry cell is made up of

Lead
Cadmium
Iron
Zinc

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Chemistry
Citric acid is present in free form in

Apple
Tamarind
Lemon
Milk

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Chemistry
Which of the following is the petroleum wax ?

Bees wax
Paraffin wax
Carnauba wax
Jojoba wax

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Chemistry
Acid rain' is caused due to air - pollution by

Nitrous oxide and sulphur dioxide
Carbon monoxide
Methane
Carbon dioxide

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MORE MCQ ON Chemistry

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