Question # 1

Which one of the following vitamins is water soluble?

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Vitamin A

Vitamin C

Vitamin D

Vitamin E

Which is not a character of SO₂

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it is a colourless gas

It has irritating smell

It causes suffocation

It do not form sulphuric acid

Petroleum fraction having composition C₇to C₁₀IS called

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Petroleum gas

Petroleum Ether

Kerosine oil

Gasoline or petrol

The heat capacity of water is greater than rocks.

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4 times

5 times

6 times

7 times

Clark's method is used to remove the hardness of water, in this method which is used.

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Ca(HCO₃)₂

Na-Zeolite

Ca-Zeolite

Ca(OH)₂

Such reaction which can be made proceed in either direction depending upon the condition:

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simple reaction

reversible reaction

irreversible reaction

chain reaction

How many percentage of protein is present in dry weight of animal?

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More then 20%

More then 30%

More then 40%

More then 50%

Dehydrohalogenation takes place in the presence of .

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NaOH aqueous

Alcoholic KOH

Aqeous KOH

Alcoholic NaOH

Main component of natural gas is

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Methane

propane

Butane

Propene

Silicon occurs in the form of

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Silica

Silicates

both a and b

None of these

Global warming causes rising of the sea level. The cause of global warming is.

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CO₂ gas.

SO₂gas.

NO₂gases.

O₃gas.

Cholera is caused by

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Protozoa

Virus

Bacteria

Fungi

Acids turn

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Blue litmus red

Red litmus blue

Blue litmus green

Blue litmus blue

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