Question # 1

Dextrose is a crystallized:

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sucrose

lactose

glucose

fructose

Dehydration of alcohols can be carried out with.

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NaOH

KOH

H₂SO₄

HCl

The pH of water containing CO₂ is

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4-6

5.6-6

6-7

7-8

Temporary hardness is because of .

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Ca(HCO₃)₂

CaCO₃

MgCO₃

MgSO₄

The color of Iodine is:

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Purple

Black

Red

Pink

The formula of ozone is.

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O₂

O₃

O

CO

Volatility of hydrocarbons deceases with:

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decrease of molecular mass

increase of molecular mass

increase of double or triple bonds

decrease of triple bonds

Building and Monuments lose their beauty and shine due to

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U.V radiations

Chlorofluoro carbons

Acid rain

IR radiations.

The salts of which element are present in detergent that causes the rapid growth of algae in water bodies is.

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Phosphate

Calcium

Sodium

All of them

Which one of the properties of water is responsible for rising of water plants?.

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Specific heat capacity

Surface tension

Excellent solvent action

Capillary action.

Which one of the mineral acid.

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HCl

H₂SO₄

HNO₃

All of these

Equilibrium constant has no unit when number of moles of reactants and products are:

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same

Different

Both a and b

None of these

Grease stains from clothes are removed by sing.

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Ammonium nitrate

Aluminium hydroxide

Ammonium hydroxide

Aluminum chloride

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