Question # 1

Which is not a calcarious material.

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Lime

Clay

Marble

Marine shell

During nitration of benzene, the active nitrating agent is

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NO₃

NO₂⁺

NO₂^-

HNO₃

An aldehyde compound can be reduced to alkane by

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Wurtz reaction

Grignard reaction

Wolf Kishner reaction

Kolbe's reaction

Synthetic rubber is made by polymerization of

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Vinylaecetate

Acetylene

Divinylacetylene

Chloroprene

How much fresh water is used for domestic purpose

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8%

23%

69%

100%

Which element shows highest oxidation state among these

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Zn

Fe

Mn

Sc

Banana flavour is given by the ester

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Octyl acetate

Amyl butyrate

Amyl acetate

Ethyl butyrate

The process in when alkene are converted into carboxylic acid is known as

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Oxidation

Reduction

Hydrolysis

Hydration

Which one of the following does not react with dilute sulphuric acid.

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Mg (OH)2

Mg

MgO

Mg(NO3)2

When CO₂is made to react with ethyl magnesium iodide, followed by acid hydrolysis, the product formed is

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propane

propanoic acid

propanal

propanol

Acetic acid manufactured by

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Distillation

Fermentation

Ozonolysis

Esterification

The macronutrients are required in quantities ranging from

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4-40 kg per acre

10-100 kg per acre

5-100 kg per acre

5-200 kg per acre

The basis of modern periodic table is

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Electron affinity

Atomic mass

Ionization Potential

Atomic number

The pH range of the acid rain is

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7-6-5

6.6-6

6-5.6

less than 5

Preparation of vegetable ghee involves

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Halogenation

Hydrogenation

Hydroxylation

Dehydrogenation

Which gas is evolved when CO2 is passed through KO2.

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O2

CO

O3

None of these

Cyclic structure of benzene was proposed by

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Dewar

Faraday

Down

Kekule

Which of the following has highest boiling point

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Methanal

Ethanal

Propanal

2-hexanone

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