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Chemistry

Chemistry
The weight of 6.023 × 1022 atoms of carbon is

0.12 gms
120 gms
1.2 gms
12 gms

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Chemistry
Gas released during Bhopal tragedy was :

Ethyl isothiocyanate
Sodium isothiocyanate
Methyl isothiocyanate
Potassium isothiocyanate

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Chemistry
Which of the following vitamins is generally excreted by human in urine?

Vitamin D
Vitamin B
None of these
Vitamin C

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Chemistry
Cement is usually a mixture of :

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

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Chemistry
Which one is the most reactive gaseous element

Flourine
Chlorine
Iodine
Bromine

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Chemistry
Epsom salt is used

In making tooth paste
In softening water
As purgative
In paper industry

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