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Chemistry

Chemistry
The gas used to dilute oxygen for breathing by deep sea divers is:

Helium
Argon
Nitrogen
Neon

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Chemistry
Which is known as carbolic acid?

Acetic acid
Ethanol
Oxalic acid
Phenol

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Chemistry
Malathion is a/an

Preservative
Fumigant
Insecticide
Pesticide

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Chemistry
In which of the following ions , the colour is not due to d-d transition ?

[Cu(NH3)4]2+
[Ti(H2O)6]3+
[CoF6]3+
[CrO4]2−

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Chemistry
Soap helps in better cleaning of clothes because

It absorbs the dirt
Soap acts like catalyst
It reduces the surface tension of solution
It gives strength to solution

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Chemistry
The temperature of oxy-acetylene flame is around

4000°C
3200°C
3600°C
2800°C

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MORE MCQ ON Chemistry

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