Question # 1

Which factor is helping to reduce the environmental pollution:

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urbanization

industrialization

increases of plantation

rapid growth of population

The semi solid wastes in landfills is called:

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Landfill

effluents

Leachate

Incineration

All amino acids are optically active except

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Amino acid

Series

Threonine

Tryltophan

The word polymer is derived from words poly mean many and mer means unit.

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Latin

Greek

English

French

Amino acids are bifunctional organic compounds what are the two function groups

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Carboxylic acid and alcohol

Acohol and aldehyde

Carboxylic acids and ketone

Amino group and carboxylic acid

The relative rate of diffusion of a gas (molecular weight = 128) as compared to oxygen is

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2 times

1/4

1/8

1/2

The order of reactivitv of alksI halides towards nucleophile is

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RI>RBr RF>RCI

RF>RCI>RBr>RI

RI>RBr> RCI>RE

RF>RBr>RCI>RI

An ideal gas cannot be liquefied because

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Its critical temperature is always above 0°C

Its molecules are relatively small in size

It solidifies before becoming a liquid

Forces operative between its molecules are negligible.

Which of these polymers is an addition polymer

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Nylon 6, 6

Polystyrene

Terylene

Epoxy resin

One of the following can produce greater number of moles of ethyl chloride on reacting with escess of ethanol

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PCI5

PCI3

HCI/ZnCl2

SOCI2

The boiling point of glycerin at 1 atmospheric pressure is:

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290°C

390°C

190C°

210°C

Ricket is caused due to the deficiency of vitamin

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A

D

B

E

Which of the following is weakly acidic in nature

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Alcohol

Phenol

Aidehyde

Amide

Most common oxidation states shownby cerium are

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+2, +4

+3, +4

+3, +5

+2, +3

One of the followings is not type of polymer

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Homopolymer

Copolymer

Heteropolymer

Terpolymer

Across the lanthanide series, the basicity of the lanthanide hydroxides

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Increases

Decreases

First increases and then decreases

First decreases and then increases

The reaction between fat and NaOH is called:

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Esterification

Hydrogenolysis

Fermentation

Sponification

Value of rate constant k is specific for a reaction, and varies from reaction to reaction. The value of k of a reaction changes with

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Time

Temperature

Concentration of reactants

Order of reaction

General formula of carbocyclic acids is:

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RCOH

RCOR

RCOOR

R-OH

The reaction in which ketone is reduced to the alkane is called

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Kolb

Clemmensen

Cannizzaro

None

The number of antibonding electron pairs in O^2-molecular ion on the basis of MOT is

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4

3

2

5

Octane number is zero for

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n-Heptane

Isooctane

n-Hexane

Isoheptane

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