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Chemistry

Chemistry
Concentration of a material which is lethal to 50% animal is called

ADI
LD50
LC50
NOAEL

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Chemistry
Ethanol containing 5% water is known as

Methylated alcohol
Denatured spirit
Rectified spirit
Power alcohol

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Chemistry
Which one of the following minerals is found in Monazite sand ?

Sodium
Potassium
Thorium
Uranium

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Chemistry
Threshold limit value of copper in the atmospheric air is

1.0 mg/m3
0.01 mg/m3
5.0 mg/m3
0.001 mg/m3

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Chemistry
The sewage obtained from water closets and urinals is known as

Sullage
Garbage
Sanitary waste
Industrial waste

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Chemistry
Nitrogen forms a variety of compounds in all oxidation states ranging from

–3 to + 4
–3 to + 6
–3 to + 5
–3 to + 3

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MORE MCQ ON Chemistry

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