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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
The pair of compounds used as anaesthetic in medicines :

Chloroform, Nitrogen dioxide
Ether, Ammonia
Nitrous oxide, Chloroform
Nitrogen dioxide, ether

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Chemistry
When Hydrogen starts burning in air, it produces ?

Water
Methane
Carbonic Acid
Ammonia

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Chemistry
The resources which can be used continuously, year-after -year are called

Renewable
Biotic
Non-renewable
Abiotic

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Chemistry
What is the atomic number of Oxygen

22
12
8
5

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Chemistry
Haloarenes are more stable than haloalkanes due to

Resonance effect
Inductive effect
All of them
Hyper conjugative effect

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MORE MCQ ON Chemistry

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