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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
The depletion of Ozone layer is mainly due to

Radioactive rays
Volcanic eruptions
Aviation fuels
Chlorofluorocarbons

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Chemistry
The anode of a dry cell is made up of

Zinc
Lead
Iron
Cadmium

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Chemistry
Which of the following statements are correct about chloroform? a. Liquid fuel b. Anaesthetic in nature c. Produces phosgene d. Fire extinguisher

D, a
B, c
A, b
A, c

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Chemistry
Hardest allotrope of carbon is

Lamp black
Graphite
Diamond
Coke

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Chemistry
The oil used in the froth floatation process is

olive oil
coconut oil
pine oil
kerosene oil

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MORE MCQ ON Chemistry

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