Question # 1

Urea is nitrogenous fertilizer. It consist of nitrogen.

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26.6 %

36.6%

46.6%

56.6%

Effects of ozone depletion are following except the one.

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Increases infectious diseases

Increases crops production

Can cause skin cancer

Can cause climatic changes.

Runcid butter has

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Foul smell

Rotten egg smell

Pungent smell

No smell

About 99% atmosphere's lies within:

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30 kilometre

35 kilometre

15kilometre

11 kilometre

Dilute acids react with carbonates to produce the given products except.

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Salt

Water

Hydrogen

Carbon dioxide

A conjugate base is a specie formed by donating a.

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Proton

Electron pair

Neutron

Electron

Our planet earth consists of ____________ natural Spheres.

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1

4

6

8

The two major components of atmosphere are:

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Hydrogen and oxygen

Nitrogen and Hydrogen

Nitrogen and oxygen

Oxygen and water.

The functional group -COOH is found in.

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Aldehydes

Esters

Carboxylic acids

alcohols

Olefins is a Latin word meaning:

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inert

less reactive

oil forming

most reactive

The % age of nitrogen and oxygen in our atmosphere is:

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80

90

95

99

The green house effect is proportional to the amount of which gas in air.

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CO₂

O₂

N₂

All of them

What is pOH of 0.01 M solution of HCl?

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1

4

12

13

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