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Chemistry

Chemistry
DDT and BHC may act as

Asthematic agents
None of these
Allergens
Carcinogens

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Chemistry
Number of hydrogen atoms in a Glucose molecule

14
12
8
6

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Chemistry
Which one of the following forms of phosphorus is most reactive?

White phosphorus
Black phosphorus
Violet phosphorus
Red phosphorus

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Chemistry
Which type of fire extinguisher is used for petroleum fire ?

None of these
Soda acid type
Powder type
Foam type

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Chemistry
For a spontaneous chemical process, the free energy change is

Negative
Zero
Depends on whether the reaction is exothermic or endothermic
Positive

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Chemistry
What is 'milk of magnesia' chemically?

Magnesium carbonate
Sodium bicarbonate
Magnesium hydroxide
Calcium hydroxide

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MORE MCQ ON Chemistry

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