ECAT Pre Engineering Chemistry Chapter 20 MCQ Test With Answer

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ECAT Chemistry Chapter 20 Important MCQ's

Sr.#	Question	Answer
1	Benzene was discovered by first of all	A. Michael Faraday B. Hofmann C. Ainderson D. Sorenbon
2	Benzene gives reactions generally	A. electrophilic B. addition substitution C. synthesis D. addition and electrophilic substitution
3	Aromatic compounds burn with sooty flame cause:	A. They have high percentage of hydrogan B. They have ring structure C. They have high percentage of carbon D. They resist reaction with air
4	Arenes are also called	A. atom B. hydrocarbons C. aromatic D. benzene
5	Bond angle in benzene is :	A. 109..5^o B. 180^o C. 120^o D. 107.2^o
6	Benzene gives reactions generally:	A. Electropholic subsitution B. addition C. synthesis D. addition and electropholic subsitution
7	Ozonolysis of benzene gives	A. nitration B. sulphonation C. ozonide D. glyoxal
8	Monosubstituted benzene can have disubstitution at position:	A. Ortho B. meta C. para D. a, b, c
9	Which is the property of benzene?	A. decolourizes KMnO₄ B. straight chain structure C. only double bond is present D. triple and double bond
10	Which term was derived from atomos?	A. atom B. hydrocarbon C. aromatic D. aliphatic

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ECAT Pre Engineering Chemistry Chapter 20 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 20 Aromatic Hydrocarbons

ECAT Chemistry Chapter 20 Aromatic Hydrocarbons

Benzene gives reactions generally:

Aromatic hydrocarbons are the derivatives of:

Benzene cannot undergo:

Benzene reacts with Cl, in sunlight to give the end product

Simplest aromatic compound is

Benzene cannot undergo

Ratio of carbon to hydrogen in aromatic compounds is:

The conversion of n-hexane into benzene by heating in the presence of CO, is called

Benzene gives reactions generally

Which term was derived from "aroma":

The conversion of n-hexane into benzene by heating in the presence of Cr2O3 is called:

Benzene was discovered by first of all:

Which is the property of benzene:

Monosubstituted benzene can have disubstitution at position:

Benzene was discovered by first of all

Which of the following acid can be used as a catalyst in Friedel Craft's reaction?

Which of the following acid can be used as a catalyst in Friedel craft's reaction

Aromatic hydrocarbons are derivatives of

During nitration of benzene, the active nitrating agent is:

Monosubstituted benzene can have disubstitution at position

The hydridization in benzene is

The benzene molecule contains

During nitration of benzene. the active nitrating agent is

Among the following, poly cyclic compound is

Which terms was derived from " aroma"?

empirical formula mass of benzene is time lesser than moleculer formula mass:

Resonance energy of benzene is (in KJ mol-1)

Characterstics of aromaic are:

Aroma meas:

Bond angle in benzene is :

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Top Scorers Of ECAT Chemistry Chapter 20 Aromatic Hydrocarbons MCQ`s Test

ECAT Chemistry Chapter 20 Important MCQ's

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The conversion of n-hexane into benzene by heating in the presence of Cr₂O_{3 is called:}

Resonance energy of benzene is (in KJ mol^-1)