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Chemistry

Chemistry
Which one of the following species has the highest bond order, shortest bond length and maximum bond strength

O+2
O-2
O2
O-22

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Chemistry
Glycol is used to manufacture which of the following ?

Terylene
Artificial silk
Rubber
Nylon

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Chemistry
The total energy of revolving electron in an atom

Can never be positive
Cannot be negative
Will always be positive
Can have any value above zero

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Chemistry
The absolute temperature of a gas is doubled and the pressure is reduced to half, the volume of the gas

Will be reduced to half
Will increase four-fold
Remains unchanged
Will be doubled

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Chemistry
Galena is a mineral of

Iron
Gold
Lead
Calcium

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Chemistry
PVC is obtained by the polymerisation of

Propane
Vinyl chloride
Acetylene
Styrene

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