Question # 1

Which of the following is a secondary pollutant.

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CO₂

CO

SO₃

HF

Marsh gas is mostly :

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ethane

methane

butane

propane

If Qc < Kc the reaction goes in:

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Forward

Reverse

At equilibrium state

None

When the magnitude of Kc is very small it indicates.

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Equilibrium will never establish

All reactants will be converted to products.

Reaction will go to completion

The amount of products is negligible

Which diseases cause by the deficiency of vitamin E?

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Rickets

Anemia in babies

Scurvy

Night blindness

Ultraviolet radiations can causes.

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Hepatitis

Asthma

Skin cancer

Night blindness

Building and Monuments lose their beauty and shine due to

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U.V radiations

Chlorofluoro carbons

Acid rain

IR radiations.

The % age of carbon in peat is :

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60%

70%

80%

90%

soap is the sodium salt of long chain.

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Amino acids

Fatty acids

Nucleotides

None of them

Chemical formula of chloroform.

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CH₃Cl

CH₂O₂

CHCl₂

CCl₄

The process of removing temporary hardness of water.

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Clark's method

Washing soda method

Sodium zeolite

Filteration method

Which one of the following is gas at room temperature:

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C2H6

C6H14

C6H6

C8H18

General formula of alkynes is:

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C_nH_n

C_nH_2n

C_nH_2n+2

C_nH_2n-2

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