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Chemistry

Chemistry
Which of the following is the maximum number of electrons that can be present in M-shell?

32
8
18
2

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Chemistry
Which is the purest commercial form of iron ?

Stainless steel
Wrought iron
Steel
Pig iron

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Chemistry
In addition to hydrogen, the other abundant element present on Sun’s surface is

Helium
Argon
Oxygen
Neon

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Chemistry
Milk tastes sour when kept in the open for sometime due to the formation of

Acetic acid
Carbonic acid
Lactic acid
Citric acid

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Chemistry
The monomer of polythene is

ethylene
None of these
vinyl chloride
ethyl alcohol

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Chemistry
The major component in the LPG is

Methane
Butane
Propane
Ethane

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