Question # 1

When Cu reacts with conc. HNO3 , which one of the following gases is evolved

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N2O

NO

NO2

N2O5

Which one is a disaccharide

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Glucose

Sucrose

Fructose

Cellulose

Chlorobenzene on nitration with conc. HNO3 and Conc. H2SO4 gives.

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m -chloronitrobenzene

o and p chloronitrobenzene

o and m chloronitrobenzene

mixture of O2 m and p chloronitrobenzene

Main source of aromatic compound is

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Petroleum

Coaltar

Living organisms

Dead marine animals

Synthetic rubber is made by polymerization of.

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Chloroform

Acetylene

Divinylactylene

Chloroprene

Which of the follow8ing is not a fatty acid.

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Propanoic acid

Acetic acid

Phthalic acid

Butanoci acid

The avoid teh formation of toxic compounds with chlorine which substance is used for disinfecting water.

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KMnO4

O3

Alum

Chloramines

Glycoside linkage is present in

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Proteins

Nylon -6,6

Starch

DNA

Which compound is alicyclic in nature.

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Cyclobatane

Iso batane

n butane

Toluene

In pyrite burner, the gas produced is.

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SO3

SO2

CO2

NO

Which one of following is used in cosmetics

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Talc

Asbestos

Sodium sulphate

Aluminium Sulphate

Which is simplest amino acid

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Alanine

Protein

Lysine

Glycine

During manufacturing of cement , the temperature of pre heating zone is.

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500 ^oC

900^oC

1000^oC

1500^oC

Acetaldehyde can be prepared by the oxidation of.

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Acetic acid

Ethanol

1- Proponal

Ethanonic acid

Which are correct oxidation states for lead

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+1, +2

+3 , +5

+2 ,+4

+4 only

Acetaldehyde reacts usually with

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Electrophiles only

Nucleophiles only

Electrophiles and nucleophiles

Free radicals only

A solution of borax in water is.

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Acidic

Alkaline

Neutral

None of these

Formula of choloroform is

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CH₃Cl

CCl₄

CH₂Cl₂

CHCI₃

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