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Chemistry

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

SO2
O2
Cl2
H2

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Chemistry
The antiseptic compound present in dettol is

Biothional
Cresol
Enloroxylenol
Iodine

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Chemistry
Natural rubber is the polymer of :

Ethylene
Isoprene
Butadiene
Styrene

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Chemistry
Highest percentage of carbon is found in which form of coal?

Lignite
Anthracite
Peat
Bituminous

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Chemistry
Of the following, which one pollutes the air of a big city ?

Cadmium
Copper
Lead
Chromium

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Chemistry
Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ?

Iron and cadmium
Nickel and cadmium
Lead peroxide and lead
Zinc and carbon

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