Question # 1

Polumerization process was classified by

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W.H. Garold

William Hackel

W.H. Carothers

H. Carothers

Which one of the following pair of atoms is most likely to form an inoic bond?

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Na and F

C and F

N and F

O and F

The highest oxidation state of manganese is

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+7

-7

+6

+4

Only those metals can replace Hydrogen from dilute acids, which have

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High negative reduction potential

Low negative reduction potential

High positive reduction potential

low positive reduction potential

Reaction kinetics is important to discover the---under which reaction will proceed most economically:

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rate constant

Conditions

volume

equilibrium point

Photo chemical smog contains _________ as main reactants:

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nitrons oxide and unburnt hydrocarbons

niliric oxide and unburnt hydrocarbons

NO and burnt hydrocarbons

N₂O and burnt hydrocarbons

A student mixed ethyl alcohol with small amount of sodium dichromate and added it to the hot solution of dilute sulphuric acid. A vigorous reaction took place. He distilled the product formed immediately. What was the product?

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Aceton3

Dimethyi ether

Acetic acid

Acetaldehyde

The energy difference of d-orbitals varies from

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Atom to atom

lon to ion

Electron to electron

proton to proton

During esterifcation, the alcobol molecule acts as:

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Oxidizing agent

Electrophile

Reducing agent

Nucleophile

Acetic acid is also named:

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Methanoic acid

Ethanoic acid

Propanoic acid

Butanoic acid

Which of the following molecules should be more volatile

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HF

HCl

HBr

HI

The reduction potential to copper electrode is +0.34 V and that of Zn electrode is -0.76 V. when these two are coupled the e.m.f. of the cell is

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-0.42 V

+0.42

-1.10 V

+1.10 V

Aldehydes is distinguished from ketones by using

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Tollen's reagent

Benedict reagent

Fehling solution

All of the above

Glyptal polymer is obtained from glycerol on reacting with

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Malonic acid

Phthalic acid

Maleic acid

Acetic acid

Which compound shows more hydrogen bonding?

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C₂H₆

C₂H₅Cl

CH₃----O----CH₃

C₂H₅OH

Which is the most volatile compound

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Hl

HCl

HBr

HF

Which statement is correct for the fuel cells

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These cells operate at low temperature

No catalyst used for the formation of water

MnO₂is used as electrolyte

Primary carbon attaches with other hydrogen atoms directly:

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One

Two

Three

At least one or more than it

Gypsum is a common mineral of

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Magnesium

Strontium

Calcium

Barium

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Non polar R group

Polar R group

Acidic R group

Metallic R group

Alkaline earth metals are usually

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Reducing agent

Oxidizing agent

Amphoteric

Acidic

Maximum variable oxidation state is of:

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Mn⁺²

Fe⁺³

Cr⁺¹

a and b

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