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Chemistry

Chemistry
The next higher homologue of C6H14 is

C7H12
C7H16
C7H14
C6H12

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Chemistry
________ is a by product of sewage treatment and can be decomposed to produce biogas

Scum
Sludge
Sewer
Sewage

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Chemistry
How many neutrons does iron have

26
30
13
8

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

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

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Chemistry
Gobar gas contains mainly :

Ethylene
Propylene
Acetylene
Methane

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Chemistry
The most abundant element in the earth’s atmosphere is

Krypton
Nitrogen
Oxygen
Argon

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