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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-22
O-2
O+2
O2

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Chemistry
When water itself combines chemically with some element or mineral it is called

Hydration
Desilication
Carbonation
Oxidation

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Chemistry
Which of the following pollutants is main product of automobile exhaust ?

Hydrocarbons
NO
CO
CO2

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Chemistry
An example of major air pollutant is

Carbon dioxide
Oxygen
Helium
Carbon monoxide

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Chemistry
The gas used for artificial ripening of green fruit is

carbon dioxide
ethane
ethylene
acetylene

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Chemistry
The oil used in the froth floatation process is

olive oil
coconut oil
kerosene oil
pine oil

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