Question # 1

Polumerization process was classified by

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W.H. Garold

William Hackel

W.H. Carothers

H. Carothers

All of the following have cleavage planes except:

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molecular crystals

metallic crystals

covanent crystals

ionic crystals

Soil remediation means

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to make it suitable for cultivation of crops

to make it acidic

to make it alkeline

to add manure into it

The volume of gas depends upon the ______ molecules

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Size of

Molecular weight

Space between

Both a and b

The total pressure exerted by a mixture of gases is the sum of the partial pressure of all the gases present is a statement of

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Charle's Law

Boyle's Law

Dalton's Law

Graham's Law

solubility of carboxylic acids decreases in water with increase in molar mass because

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Bigger molecules are more polar

bigger molecules have bigger non-polar groups

bigger molecules make more hydrogen bonds

bigger molecules can form lesser hydrogen bonds/molecule

The overall effect of the photochemical smog in the after noon is built up of

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Neutralization

oxidizing agent

Reducing agent

Activating agent

lonic solids are characterized by which one of the following properties

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moderately low pressure

high vapour pressure

good conductivity in solid state

solubility in polar solvents

Which compounds is alicyclic in nature?

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Cyclobutane

Iso-bstand

n-Butane

Toluend

The origin ofacidic nature of alkyne is?

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small size of C

Small size of H

polarity of triple bond

sp hybridization

The strength of dipole-dipole forces depends upon

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Electro negativity difference

Distance between atoms

Electropositivity difference

Both A & B

What will react differently with the two isomeric pentols, (CH₃)₃CCH₂OH and (CH₃)₂CH CH₂CH₂OH

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Acidified (aq) KMnO₄

Concentrated H₂SO₄

PCl

Sodium

Grignard's reagent on treatment with carbonyl compounds yield

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Pheonol

Alcohol

Alkane

None of these

The human body can synthesize ______ amino acids

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1

10

20

19

[Co(NH₃)₆]³⁺will form ______ structure

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Square planar

Tetrahedral

Octahedral

Trigonal bipyamidal

Alcohols react with carboxylic acid to produce the class of compounds known as

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Grignard's reagent

Esters

Amides

None of these

Pollution is

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Removal of top soill

Release of toxic/undesirable materials in enevironment

Conversation of energy

All the above

Organic compounds containing halogen atom are called:

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R---OH

R----X

R----NH₂

R----COH

Which of the following is not an air

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N₂

N₂O

NO

CO

Which of the following will affect the rate :

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First step of reaction.

Last step of reaction.

Rate determining step.

Fastest step.

First atomic theory was put forward by an English school teacher:

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Maxewell

Newton

Sanger

John Dalton

The reaction of aromatic acyl chloride and phenol in the presence of a base NaOH or pyridine is called

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Kolbe's reaction

Perkin's reaction

Sandmeyer's reaction

Schotten Baumann reaction

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