Question # 1

Hard water can cause.

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Stomach disorder

Boiler blasts

Inefficiency of engine

All of them

Which one of the following is testeless?

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Sucrose

Glucose

Fructose

Starch

Lipids are macromolecules. They have characteristics except one of the following.

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They are high energy foods.

They are soluble in water.

They are poor conductor of heat.

They are esters of fatty acids.

Some organic compound are soluble in water due to the presence of .

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-OH

H⁺

Botha a and b

Covalent bond

Which one of the following cannot by hydrolyzed?

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Polysacchrides

Monosacchrides

Oligosacchrides

All of these

Law of Mass Action was put forward by:

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G.N.Lewis

Lowry

Arrhenius

Gulbderg and Waage

Which one of the following gas has greater retaining capacity?

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O₂

N₂

CO

CO₂

Incomplete combustion of alkanes produces.

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Carbon dioxide only

Carbon monoxide only

Carbon monoxide and carbon black

Carbon dioxide and carbon black

You want to dry a gas which one of the following salt you will use?

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CaCl₂

NaCl

CaO

Na₂SIO₃

Chalco-Pyrite is an ore of:

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Copper

Silver

Iron

Aluminium

Which one is the simplest sugar which can not be hydrolyzed?

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Glucose

Sucrose

Starch

Cellulose

Monosaccharides consist of:

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2 to 6 carbon atoms

3 to 9 carbon atoms

4 to 10 carbon atoms

10 to 15 carbon atoms

Cause of global warming is:

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CO₂gas

SO₂gas

NO₂gas

O₂gas

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