Question # 1

Which can be used for dehydration of alcohol

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P₄O₁₀

H₂SO₄

H₃PO₄

All of them

Th IUPAC name of the compound having formula (CH3) 3 C - CH = CH2 is

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1, 1-Dimethyl-3-butene

1,1,1-Trimethyl-3-propene

3,3,-Dimenthyl-1-butene

3,3,3,-Trimethyl-1-propene

The process in which orbitals of different energies and shapes mix with each other to give equivalent hybrid orbitals is called

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Isomerization

polymerization

Hybridization

Resonance

A six membered ring containing one double bond called

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Cyclohexene

Cyclohexane

Cyclohexadiene

None

Preparation of vegetable ghee involves

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Halogenations

Hydrogenation

Hydroxylation

Dehydrogenation

Which of the following is not an ortho-para directing group

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"Each different compound should have a different name" was published by IUPAC system of nomenclature in

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1892

1830

1947

1979

The presence of a double bond in a compound is the sign of

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Saturation

Unsaturation

Substitution

None of above

Boiling point of n-butane is:

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-102°C

-75°C

-55°C

55°C

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Pent -1-ene-3-yne

2-pentyne-4-ene

1-pentene-3-yne

Pent-2-yen-4-ene

De halogenatiion of tetrahalides happens in the presence of active metal like

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Zn

Mg

Both a and b

None of them

Kolb's method is not useful for the production of

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Methane

Ethane

Propane

Butane

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2-bromonitrobenzene

2-nitrobromobenzene

1-bromonitrobenzene

1-nitrobromobenzene

Hydrocarbon which is liquid at room temperature is

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Pentane

Butane

Propane

Ethane

When alkyl is treated with chlorine in the presence of sunlight

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1,3 dichloroproduct is formed

1,4 dichloro product is formed

1,3,5 trichloro product is formed

Only alkyl group is substituted

The order of reactivity of halogens in aliphatic substitution reactions is

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Br2 > C12 > F2

C12 > Br2 > F2

C12 C12 > Br2

F2 > Br2 > C12

Preparation of vegetable ghee involves:

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Halogenation

Hydrogenation

Hydroxylation

Dehydrogenation

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

acetylene can be converted into-while passing through a Cu-tube at 300°C:

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Glyoxal

Vinyl acetylene

Vinyl alcohol

Benzene

How many molecules of chlorine adds in benzene in the presence of sunlight

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One

Two

Three

Four

The hydrocarbons having double bonds normally end with suffix

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Ane

Ene

Yne

Oic

Marsh gas was the name given to

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Methane

Ethane

Propane

Butane

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2, 3-dimethylbutane

2, 3-methylbutane

2-dimethylbutane

Dimethylbutane

Mustard gas is a

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Gas

High boiling speed

High melting liquid

Steam

An alkynes having Carbon count of 20 is

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gas

liquid

Solid

None

Benzene can be obtained by heating either benzoic acid with X or phenol with Y. X and Y are respectively

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Zinc dust and soda lime

Soda time and zinc dust

Zinc dust and sodium hydroxide

Soda lime and copper

Nitroalkane are used in

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Fuel

Solvents

Organic synthesis

All of them

Synthesis rubber is made by polymerization :

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Chloroform

Acetylene

Divinyl acetylene

Butene

Which gas is produced by treating CaC₂with water

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Methane

Ethane

Acetylene

HCI

The saturated hydrocarbons usually end with suffix ______

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Ane

Ene

Yne

Oic

Polymerization of ethane take place at pressure of 100 atm and a temperature of

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200°C

400°C

600°C

800°C

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ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons Online Test MCQs With Answers

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