Question # 1

Among the following, which one is nucleophile

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H+

Ca2+

OH-

Na+

Which one of the following alcohol is indicated by formation of yellow crystals in lodoform tesr?

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Methanol

Ethanol

Butanol

Propanol

Which alcohol is most reactive towards sodium metal?

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Ter Butyl alcohol

n-Propyl alcolol

Isopropyl alcohol

Have same reactivity

Which is an intermediate in Svl

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Ethoxide ion

Alkene

Alkyl halide

Carbocation

Phenol is colourless, crystalline and solid

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Hygroscopie

Deliquescent

Moistening

Odourless

The species which are produced by heterolytic bond breaking and can act as electron pair donor

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Free radicals

Cations

Nucleophiles

electrophile

Propanone does not undergo

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Oxime formation

Reduction of Fehling solution

Hydrazone formation with hydrazine

Reaction with HCN

Alcohol is less acidie than phenol due to

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higher ka value

Instability of alkoxide ion

stability of carbocation

Stability of phenol

An alkyl halide reacts with NH3 to give

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Amide

Cyanide

Amine

Aniline

The number of resonating structures of phenoxide ion are

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3

5

6

4

Which of the follwing dnes not give brick red precispitate wits Fehling's solution

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Acetaldehyde

Formalin

prorionaldehyde

Acetone

Which of the following is soluble in water?

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СН3ОН

CCL4

CHCI3

CS2

An alcohol is converted to an aldehyde with same number of carbon atoms as that of alcohol in the presence of K2Cr2O7/H2S04 the alcohol is

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CH3C(CH3)2OH

(CH3)3COH

CН3СН2СН2OH

(CH3)2CHOH

The conversion of tertiary alcohols into alkenes in the presence of K2Cr2O7 + H2SO4 is

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Addition reaction

C-H bond cleavage

Elimination reaction

Combustion reaction

Which of the following reactants will be required to form ethene from ethyl chloride

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_{Alcoholic KOH}

Alkaline KMnO4

Aqucous KOH

Aqucous NaOH

which of the following is not a symmetrical ketone

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4-heptanone

Butanone

Propanone

3-pentanone

What forces operate between ethyl group of ethyl alcohol and oxygen of water

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H-bonding

attractive forces

repulsive forces

dipole forces

The dehydration of ethyl alcohol with concentrated H2SO4 at 140°C gives

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Ethene

Alcohol

Diethyl ether

Carboxylic acid

Oxidation of secondary alcohol produces

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Aldehyde

Ketone

Alkyl halide

Ester

Which of the following is primary alkyl halide

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IsopropyI halide

Sec-butyl halide

Tert-buryi halide

Neo-pentyl halide

Which of the following undergoes easy dehydration?

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3-MethyIbutan-2-ol

Ethanol

2.Methylpropan-2-ol

Methanol

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