Question # 1

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

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Hund's rule

Markownikov's rule

Pauli's Exclusion Principle

Auf bau Principle

Benzene does not undergo

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Substitution reaction

Addition reaction

Oxidation reaction

Elimination reaction

The hydrocarbon which is used as an illuminating agent

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Methane

Methene

Methyne

B & C

The hydrocarbon used for polymerization is

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Alkanes

Alkenes

Alkynes

All of above

Zn + HCI are used in

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Clemenson reduction

Wof kishner reduction

Kolb's electrolysis

Wutruz reaction

The compound prepared by a substitution reaction of benzene is

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Acetophenone

Glyoxal

Cyclohexame

Hexabromo cyclohexane

The order of reactivity of halogen acids towards alkenes

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HCl > HBr > Hl

HBr > HCl > HI

HCl > HBr

HI > HBr > HCl

Benzene is prepared from n-hexane in the presence of catalyst

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Cr₂O₃

Al₂O₃

SiO₂

All above

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

The temp. used for the hydrogenation of alkenes using Ni is

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2000°C

400°C

200-- 300°C

1000°C

The Total coal resources of Pakistan are estimated to be

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184 billion

184 million tones

1.84 billion tounes

1.84 million tonnes

In Friedal-Craft's alkylation besides AlCl3 the other reactants are

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C6H6 + NH3

C6H6 + NH4

C6H6 + CH3Cl

C6H6 + CH3COCl

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

Hydrogenation of alkenes/alkynes inthe presence of Ni as catalyst at 3000°C result in the formation of corresponding alkanes. This reaction is known as

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Sabatier-senderens reaction

kolbes reaction

Cannizaro's reaction

Haloform reaction

The four bonds of carbon in methane are directed towards the corners of

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Cube

Pentagon

Hexagon

Tetrahedron

Which of the following acid can be used as a catalyst in Friedal Craft's reactions

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AlCl₃

HNO₃

BeCl₂

NaCl

Raney - nickel is the alloy of Ni with

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Pt

Al

Cu

Pd

The next homologue of C₁₀H₂₂will be

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C₉H₂₀

C₁₂H₂₆

C₁₁H₂₄

C₁₃H₂₈

The sp²hybird orbitals are oriented in space at one angle

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180°

109.5°

100°

120°

To differentiate isomers we use

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n-

iso-

neo

All of them

Acetylene when treated with 10% H₂SO₄in the presence of HgSO₄adds one molecule of water to form

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Aldehydes

Esters

Alcohols

Acids

An alkane is produced when an alkyle halide reacts with zinc in the presence of

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HCl

CH₃COOH

Both a & b

None

Ethylene combines with water in the presence of H₂SO₄+ HgSO₄and forms

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Ethyle chloride

Ethyle alcohol

Carboxylic acid

None of these

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ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons Online Test MCQs With Answers

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