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Chemistry

Chemistry
Mixture can be

Homogeneous
Pure substance
Both A and B
Heterogeneous

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Chemistry
The function of sedimentation tank in sewage treatment is to:

Disinfect the sewage
Aerate the sewage
Remove suspended solids
Remove water content

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Chemistry
The substance most commonly used as a food preservative is

Tartaric acid
Sodium carbonate
Acetic acid
Sodium salt of benzoic acid

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Chemistry
Photo-oxidation process is initiated by

Light
Oxygen
Catalyst
Heat

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

Oxalic acid
Phthalic acid
Benzoic acid
Cinnamic acid

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Chemistry
Cyanide poisoning causes death in seconds because

It denatures enzymes of the heart/muscle
It causes cardiac arrest
It causes Lysis of red blood cells
It breaks the electron transport chain

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MORE MCQ ON Chemistry

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