Question # 1

Eye inflammation is caused by the deficiency of vitamin.

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Vitamin D

Vitamin C

Vitamin B

Vitamin A

On which base atmosphere is divided into four regions?

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Change in pressure

Change in rediation

Change in temperature

Change in volume

___________ is not mineral acid.

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HCl

CH₃COOH

H₂SO₄

HNO₃

Halogenation of alkanes in the presence of diffused sunlight takes place.

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Suddenly, only in one step

Slowly in one step

In a series of step

Fastly in two steps

Carbon content in coke is.

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80%

98%

70%

88%

Marsh gas is mostly :

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ethane

methane

butane

propane

General formula of alkenes.

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C_n H_2n-2

C_nH_2n

C_nH_2n+2

C_nH_2n-1

Which one of the following compounds is an aldehyde?

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CH₃-CH₂-OH

CH₃-COOH

CH₃CHO

CH₃COCH₃

The number of carbon atoms present in gasoline or petrol.

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5-10

6-10

7-10

8-10

The number of carbon atoms present in diesel oil.

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10-15

11-15

12-15

13-15

Amino acid are the building blocks of .

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Proteins

Carbohydrates

Vitamins

fats

Which gas is in involved in ozone depletion?

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Nitrogen

CFC's

Chlorine

All of them

Which is present 85% in natural gas?

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Ethane

Propane

Methane

Butane

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