Question # 1

Which one of the following gases is used for artificial ripening of fruits

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Ethene

Ethyne

Methane

Propane

Benzene can not undergo.

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Substitution reactions

Addition reactions

Oxidation reactions

Elimination reactions

Which compound is more soluble of water

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C2H5OH

C6H5OH

CH3OCH3

n- Hexanol

Which one of the following is not an alkali metal

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Francium

Caesuym

Rubidium

Radium

Group VI B of transition elements contains.

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Zn, Cd, Hg

Fe, Ru,Os

Cr, Mo, W

Mn, Te, Re

Kaolin is a mineral of

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Carbon

Magnesium

Silicon

Aluminium

The resonating contributing structures of Benzene are

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2

3

5

7

Which substance reacts with sodium nitroprusside.

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Ethanol

Acetaldehyde

Dimethyl ketone

Methanol

Zwitter ion is

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Dipolar ion

Amino acid with two amino groups

Amino acid with two carboxylic acid group

A synthetic amino acid

The reactivity order of alkyl halides for a particular alkyl group is

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Fluoride > Chloride > Bromide > iodide

Chloride > Bromide > Fluoride > iodide

Bromide > iodide > chloride > Fluoride

Iodide > Bromide > Chloride > Fluoride

Vinyl acetylene combines with HCl to form

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Polyacetylene

Benzene

Chloroprene

Divinyl acetylene

Hydrogen bond is the strongest between the molecules of

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HF

HCl

HBr

HI

In which compound, oxidation state of sulphur is +6

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H2S

H2SO4

H2SO3

SO3

Which substances is called chrome yellow.

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Pb3O4

PbO

2PbCO3.Pb(OH)2

PbCrO4

Rectified spirit contains alcohol about

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80%

85%

90%

95%

Which ether is symmetrical in nature.

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Methyl ethyl ether

Diphenyl ether

Methyl n propyl other

Methoxy benzene

Lowest oxidation state of nitrogen is present in.

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NH3

NO2

NO

HNO3

In IUPAC system, the name of K4[Fe(CN)6] is

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Potassium ferricynaide

Potassium ferrocynide

Potassium Hexacyanoferrate (II)

Poatssium hexacaynoferrate (III)

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