Chemistry MCQs

Page No. 14

The criteria for aromaticity is presence of_________?


aUnsaturations

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bCyclic structure

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cPresence of 4nπ electrons

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dPresence of 4n+2π electrons

✓



Chlorine Cl when attached to benzene has________?


a+1 and +R effect

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b-1 and +R effect

✓


c+1 and -R effect

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d-1 and -R effect

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View Answer -1 and +R effect

Which one of the following is most acidic?


aPhenol

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bP-nitrophenol

✓


cO-nitrophenol

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dM-nitrophenol

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View Answer P-nitrophenol

Which of the following effects best explains that o-nitrophenol is insoluble in water?


aInductive effect

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bResonance effect

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cIntermolecular H-bonding

✓


dIsomeric effect

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The carbon-carbon bond strength is maximum in__________?


aCH3CH3

✓


bCH2=CH2

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cBenzene

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dCyclohexane

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View Answer CH3CH3

Which one of the following is caustic potash?


aNaOH

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bKOH

✓


cNaCl

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dNaBH4

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View Answer KOH

Commercial detergents contain mainly _____________?


aRCOON

✓


bRONa

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cRSNa

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dROsO3Na

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View Answer RCOON

_____________ surfactants perform well over a wide range water hardness and PH?


aCationic

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bAnionic

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cNonionic

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dNeutral

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View Answer Nonionic

Polyethylene Glycols are used in the preparation of which type of detergents?


aCationic detergents

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bAnionic detergents

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cNon-ionic detergents soap

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dAll of the above

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The by-product of the process of Saponification is___________?


amethanol

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bGlycol

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cGlycerol

✓


dSodium hydroxide

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View Answer Glycerol

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