Question # 1

Phenol when distilled with zinc dust gives.

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Toluene

Benzaldehyde

Benzoic acid

Benzene

Which one of the following compounds is most abundant is nature.

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glucose

Starch

Cellulose

Fructose

Which of the following gives acidic oxide

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N

As

Sb

Bi

Which substance is used to convert ethanol to ethyl chloride

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SOCl2

PCl3

PCl5

All of these

Sodalime is

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NaOH

Mixture of Na and Ca(OH)2

KOH

Mixture of CaO and NaOH

Benzene can not undergo.

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Substitution reactions

Addition reactions

Oxidation reactions

Elimination reactions

Bleaching powder contains available chlorine approximately

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100%

70-80%

35-40%

10-20%

S_N2 mechanism involves

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1st order kinetics

2nd order kinetics

3rd kinetics

zero order kinetics

Who gave the law of Triads in 1829?

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Dobereiner

Mosely

Newland

Mendeleev

Which reagent will react with both aldehyde and ketones

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Grignard reagent

Tollen's reagent

Fehling's reagent

Benedict's reagent

Which element is present in chlorophyll

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Ca

Mg

K

Be

Which one of the following polymers is called a polyamide

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Nylon

Rayon

Terylene

Orlon

Which three elements are needed for the healthy growth of plants

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N,S,P

N,Ca,P

N,P,K

N,K,C

Which one is perchloric acid

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HClO

HClO₃

HClO₄

The compound which can not be nitrated easily.

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Benzene

Nitrobenzene

Phenol

Toluene

Nelson's cell is used to prepare

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NaOH

Na₂CO₃

Na metal

NaCl

What product are formed by the oxidative cleavage of 2-butene by alkaline KMnO4.

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Propionic acid and formic acid

Ethanoic acid only

Ethanal only

Water and ethanol

Ammonia is prepared industrially by

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Contact process

Ostwald process

Birkland Eyed process

Heber process

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