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Chemistry

Chemistry
Which one is the simplest form of alkane

Decane
Methane
Propane
Butane

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Chemistry
How many neutrons does iron have

26
30
13
8

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Chemistry
When a spoon is to be electroplated with nickel the spoon is

Dipped in a nickel sulphate solution
Made cathode and a pure nickel red, the anode
Made anode and a pure nickel rod, the cathode
Coated with nickel sulphate and dried

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Chemistry
Yellow Cake' an item of smuggling across border is

Unreformed gold
A crude from of heroin
A crude from of cocaine
Uranium oxide

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Chemistry
The hydronium ion is

H2+
H+
H3O+
HO -

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Chemistry
In which of the following states maximum iron ore is found ?

Fe3O4
Fe2O3
FeS2
FeCO3

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