Question # 1

Which compound is more soluble of water

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C2H5OH

C6H5OH

CH3OCH3

n- Hexanol

Which one of the following elements has the largest second ionization energy.

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O

Na

F

Ne

Which one of the following noble gases is least polarizable

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He

Ne

Ar

Kr

Peroxyacetyl nitrate (PAN) is a irritant to human beings and it affects

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Eyes

Ears

Stomach

Nose

Fluorine is in group VIIA of periodic table. Its chemistry will most closely resembles that of.

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Argon

Boron

Iodine

Sulphur

when aldehydes react with Tollen's reagent.

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A ketone is produced

An alcohol is produced

Ag ions are produced

Ag ions are reduced

The shape of SiO2 IS

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Tetrahedral

Trigonal bipyramid

Linear

Cubic

Which set of Hybrid orbital has planner triangular shape

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sp

sp²

dsp²

sp³

Which one of the followings is not observed in the combustion of pure methane in a plentiful supply of air

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Water in produced

CO2 is produced

The flame is smoky

Energy is released

In water the concentration of dissolved O₂should be

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1-3 ppm

2-4 ppm

4-8 ppm

8-12 ppm

Which substance reacts with sodium nitroprusside.

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Ethanol

Acetaldehyde

Dimethyl ketone

Methanol

Which compound is the most reactive

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Benzene

Ethene

Ethane

Ethyne

Which one is a disaccharide

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Glucose

Sucrose

Fructose

Cellulose

Which one of the following compounds will decolorized both acidified KMnO4 and aqueous bromine.

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Benzene

Ethane

Ethene

Methane

Chlorine heptoxide reacts with water to form

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Hypochlorous acid

Chloric acid

Perchloric acid

Chlorine and oxygen

Vinyl acetlylene reach with HCl to form

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Polycetylene

Benzene

Chloroprene

Divinylacetylene

What product is formed by the dry distillation of calcium acetate.

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CH3CH2COOH

CH3COOH

CH3COCH3

CH3CH2CHO

Corundum is

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Al2O3

Na2AlF6

Quartz

Calcium

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