Question # 1

Derivative of water is:

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Alcohals

Phenols

Either

Phenol

Which of the following alcohols cannot be produced by treatment of aldehydes or ketones with NaBh₄or LiAH₄?

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1-Propanol

2-Propanol

2-Methyl2-Proponal

Ethanol

Which is not a calcareous material

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Lime

Clay

Marble

Marine shell

Maximum hydrogen bonds in water are

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4

3

2

8

In the extraction of iron, slag is produced which is

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CO

FeSiO₃

MgSiO₃

CaSiO₃

Hydrogen chloride molecule contains

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Covalent bond

Double bond

Co-ordinate bond

Electrovalent bond

Which of the following reagents is used to distinguish acetone and acetophenone

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NaHSO₃

Grinard reagent

Na₂SO₄

NH₄Cl

Which one of the following is a buffer

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HCI + NaCI solution

CH₃COOH + CH₃COONH₄solution

H₂SO₄+ CaSO₄solution

CH₃COOH + CH₃COONa

Nylon 6, 6 is prepared by the reaction of nexamethylene with

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Formic acid

Acetic acid

Adipic acid

None of these

On passing HCI gas through a saturated solution of commercial sodium chloride, pure crystals of NaCI are precipitated due to

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Increase in pH of the solution

Decrease in pH of the solution

Common ion effect

Increase in ionization of NaCl

The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with the rule

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Hund's rule

Markowvikov's rule

Pauli's exclusion principle

Auf ban principle

Which is used for the reduction of aldehydes and ketones

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NaBH₄

Pt/Pd

Ni

All of these

Which one of the following mixture shows positive deviation form Rault's law and forms an azetrope with minimum boiling point

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Methanol + CCI₄

Methanol + acetone

Ether + HCI

Acetone + chloroform

Electrolytes in the form of solution or in the fused state have the ability to conduct :

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Light.

Electricity.

Ions.

Electrons.

When carbon dioxide is passed through the R - Mg - X is produced

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Any carboxylic acid

Propanoic acid

Propanedioic acid

None of these

Poly hydroxyl compounds of aldehyde and ketones are:

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Carbohydrates

Proteins

Fats

Lipids

The relative abundance of the ions with a definite m/e value is measured by

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High pressure of vapours

Strength of electric current measured

Quantity of fast moving electrons

Electron gas

Which of the following is not present in nucleotide?

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Guanine

Cytosine

Adenine

Tryoxine

Iodoethane reacts with sodium in ether, the product formed is

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Pentene

Propyne

Butene

Butane

A condensation polymer among the following is

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Dacron

PVC

Polysterene

Teflon

Number of neutrons in heavy hydrogen atom is

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0

1

2

3

Which reagent is used to reduce a carboxylic group to an alcohol?

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H2/Ni

H2/Pt

NaBH4

LiAIH4

For a given process, the heat change at constant pressure (p) and constant volume (v) are related to each other as

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Which of the following reaction is characteristic of benzene

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Electrophilic substitution reaction

Reduction

Oxidation

Ozonolysis

Which of the following metal requires radiation of highest frequency to cause emission of electrons?

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Na

Mg

K

Ca

Which responds to +ve iodoform test?

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Butanol-1

Butan-1-al

Butanol-2

2-pentanone

The unit of rate constant is the same as that of the rate of reaction in :

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First order reaction.

Second order reaction.

Zero order reaction.

Third order reaction.

Which set of hybrid orbitals has planar triangular shape

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sp³

sp

sp²

dsp²

The oxidation state of Fe in [Fe(CN)₆]^3-is

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+2

+3

+4

-3

Which element should have the greatest value for electronegativity when combined with hydrogen

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Na

Si

S

Cl

which enzyme is not involved in the fermentation of starch ?

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Diastase

Zymase

Urease

Invertase

The common name of propanoic acid is

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Acetic acid

Formic acid

Propionic acid

Butyric acid

In 1000 molecules of 0.001 M acetic acid the number of H⁺ions is 12.6, then its percentage of ionization is

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1.33%

1.26%

12.6

1%

Any property which depends upon the T.P and V is said to be

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Property due to k.E.

Property due to PE

Both a and b

Thermodynamic state

In 1903 Arthur Lapeworth became the first chemist to investigate a reaction mechanism. The reaction he investigated was that of hydrogen cyanide with propanone. What do we now call the mechanism of this reaction

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Electrophilic addition

Electrophilic substitution

Nucleophilic addition

Nucleophilic substitution

By simply reacting Grignand's reagent with water we get

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An alkane

Higher alkane

An alkene

An alkyne

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