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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
How many atoms of oxygen are in a glucose molecule

6
4
3
10

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Chemistry
A balloon filled with helium rises in air because

Helium pushes down on the air below the balloon
Helium is less dense than air
The balloon is weightless
Air exerts an upward force on the balloon

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Chemistry
A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be

Zinc
Aluminium
Silver
Copper

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Chemistry
White phosphorus is generally kept under

Kerosene oil
Water
Glycerine
Alcohol

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Chemistry
Which of the following is used in dating archaeological findings ?

614C
92235U
13H
818O

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MORE MCQ ON Chemistry

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