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Chemistry

Chemistry
Which of the following is colourless ?

Phosphorus
Chlorine
Sulphur
Oxygen

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Chemistry
If the sewage is fully oxidized, the nitrogen is in the form of

Nitramines
Ammonia
Nitrites
Nitrates

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Chemistry
A thick paste of cement, sand and water is called

R.C.C.
Kiln
Mortar
Concrete

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Chemistry
Of the following compounds of calcium, the one having highest covalent character is

Cacl2
CaF2
Cal2
CaBr2

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Chemistry
Saline soil contains

Hard rocks
None of these
High concentration of salt
Lot of moisture

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Chemistry
Exposure to mixtures of chemicals are greater than expected on the basis of effects of exposure to each chemical individually. This is known as

Synergism
Additives
Independent
Antagonism

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MORE MCQ ON Chemistry

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