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Chemistry

Chemistry
Which of the following is a natural polymer?

Starch
Polythene
Nylon
Bakelite

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Chemistry
The gas which turns into liquid at the lowest temperature among the following is

Helium
Nitrogen
Hydrogen
Oxygen

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Chemistry
The influence of temperature on reaction rate is predicted by

Kirchhoff's equation
Lewis equation
Arrhenius equation
Van der Waals equation

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Chemistry
Which one of the following is an example of a gel ?

Cheese
Milk
Face cream
Shaving cream

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

O-2
O2
O+2
O-22

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Chemistry
Nitrification is the biological process of converting

Ammonia into nitrite
N2 into nitrate
N2into nitrite
Ammonia into N2

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