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Chemistry

Chemistry
The anode in a dry cell consists of

Zinc
Cadmium
Copper
Graphite

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Chemistry
Periodic table contains how many groups

17
16
19
18

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Chemistry
In deep-sea diving, divers use a mixture of gases consisting of oxygen and

Helium
Nitrogen
Argon
Hydrogen

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Chemistry
Which one of the following organic compound is used to remove stains of iron compounds?

Cinnamic acid
Phthalic acid
Oxalic acid
Benzoic acid

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Chemistry
The residue left after extracting juice from sugarbeet and sugarcane is called

Molasses
Whey
Bagasse
Biomass

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Chemistry
The least preferred technique in the disposal of Municipal Solid Waste is

Land filling
Bricketting
Incineration
Composting

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