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Chemistry

Chemistry
Conversion of chemical energy into electrical energy occurs in

Dynamo
Electric heaters
A battery
Atomic bombs

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Chemistry
The purest form of water in nature is

Rain water
Sea water
River water
Lake water

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Chemistry
What is 'milk of magnesia' chemically?

Sodium bicarbonate
Calcium hydroxide
Magnesium carbonate
Magnesium hydroxide

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Chemistry
The hottest part of the gas flame is known as

non-luminous zone
blue zone
luminous zone
dark zone

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Chemistry
It is dangerous to leave the car engine running in a closed garage, because it may cause serious pollution due to poisoning by emission of

Unburnt petrol
CO
CO2
SO2

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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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MORE MCQ ON Chemistry

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