Question # 1

General formula of alcohols is:

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RCHO

ROH

O= R - C -OH

O = R - C- R

The value of K_c depends on.

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Temperature

Pressure

Volume

Atmosphere

Which one of the following does not contain proteins.

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In pulses

In Potatoes

In fruits

In eggs

When NaHCO₃is heated if forms:

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CO₂

Ca(OH)₂

CaCO₃

CaO

Which one is not a characteristic of an acid:

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it turns red litmus blue

it reacts with base to form salt and water

Its aqueous solution conduct electric current

it has sour taste

The general formula of alkynes is

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C_nH_2n

C_nH_2n+2

C_nH_2n-2

C_n H_2n+1

Which of the following gas is used to destroy harmful bacteria in water.

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Iodine

Chlorine

fluorine

Bromine

Dynamic means, reaction is:

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In forward direction

Stop

In reverse direction

Still continuing.

Which one is heterocyclic compound?

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Benzene

Cyclobutane

Thiophene

Nephthalene

Which one of the following gases is used to destroy harmful bacteria in water.

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Iodine

Chlorine

Fluorine

Bromine

Ozone has a smell

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Bitter

Rotten egg

Sweat

None of them

Matte is a mixture of:

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FeS and CuS

Cu₂O and FeO

Cu₂S and FeS

CuS and FeO

the removal of which ion causes water softening.

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Na⁺

Mg²

Li⁺

K⁺

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