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Chemistry

Chemistry
Which gas is used for converting vegetable oils into saturated fats ?

SO2
O2
H2
Cl2

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Chemistry
Which one of the following is not a fertilizer?

Ammonium sulphate
Calcium sulphate
Potassium nitrate
Calcium ammonium nitrate

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Chemistry
The weight of 6.023 × 1022 atoms of carbon is

12 gms
120 gms
1.2 gms
0.12 gms

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Chemistry
Cement is usually a mixture of :

Calcium silicate and calcium aluminate
Calcium silicate and calcium ferrate
Lime stone and silicon dioxide
Calcium aluminate and calcium ferrate

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Chemistry
Major portion of the earth’s crust is mainly constituted by

Silicon and Iron
Silicon and Aluminium
Oxygen and Iron
Oxygen and Silicon

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Chemistry
The enzyme that converts glucose to ethyl alcohol is :

Diastase
Zymase
Maltase
Invertase

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MORE MCQ ON Chemistry

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