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12 Class CHEMISTRY CHAPTER NO.9 Aromatic Hydrocarbons Online MCQs Quiz pdf

GRADE 12 – CHEMISTRY – CHAPTER NO. 9 – Aromatic Hydrocarbons – Online MCQs Board, MDCAT, UHS, PMC & ECAT Exam Preparation

CHEMISTRY – 2nd Year
Chapter Name : Aromatic Hydrocarbons
Chapter No. 9
Multiple Choice Questions
Note : All MCQ’s selected in this test are from OLD F.Sc. board , UHS and PMC(Pakistan Medical Commission) Islamabad Papers.








Book Name :  CHEMISTRY
Chapter No.  9
Chapter Name : Aromatic Hydrocarbons
Total MCQ from Text Book :  37 
Book Version  :
2022

Published By : Punjab Text Book Board Lahore
Approved By : Govt of the Punjab and Federal Ministry for Education
Test Type : MCQ’s
Exam conduct By : Inter Boards of Sindh, KPK, Balochistan, AJK, Gilgit Baltistan, Punjab & Federal
Class / Grade  : 12 ( F.Sc. Intermediate)
Total Marks : 37
Total Time :   37 minutes




13

GRADE 12 - CHEMISTRY - CHAPTER NO. 9 - Aromatic Hydrocarbons

GRADE 12 - CHEMISTRY - CHAPTER NO. 9 - Aromatic Hydrocarbons

1 / 37

The conversion of n-hexane into benzene by heating in the presence of Pt is called: (BWP 2015,2017,2019 GII)

2 / 37

Which of the following species are meta-directing groups when second group is introduced into the benzene ring I = -NH2 II = -CHO III = -COOH IV = -CH3 (UHS 2017)

3 / 37

The extra -ordinary stability of benzene molecule is due to: (DGK 2011)

4 / 37

Which acid can be used as a catalyst in Friedel-Crafts reactions? (MTN 2017, 2018)

5 / 37

Benzene is prepared from cyclohexane by the process called: (LHR 2015)

6 / 37

Which of the following acid can be used as a catalyst in Friedel - Crafts reactions? (SWL, SGD 2015)(AJK 2016)(RWP 2017) (MTN 2019 GII)

7 / 37

Which one of the following is powerful electrophile used to attack on the electrons of benzene ring? (UHS 2015)

8 / 37

Amongst the following the compoiund that can be most readily sulphonated is: (LHR 2017)

9 / 37

Molecule of benzene contains: (DGK 2018)

10 / 37

The conversion of n-hexane into benzene by heating in the presence of Pt is called: (GRW 2008)

11 / 37

The reaction of benzene with bromine in the presence of FeBr3 follows the mechanism of _________ (UHS 2017)

12 / 37

Which compound is the most reactive one? (GRW 2016)(AJK 2017)(SWL 2019)

13 / 37

During nitration of benzene, the active nitrating agent is: (GRW 2015)(RWP 2018, 2019)

14 / 37

Aromatic hydrocarbons are derivatives of: (GRW, MTN, LHR 2019)

15 / 37

In which compound benzene rings are isolated? (AJK, FSD 2015)(LHR 2016)

16 / 37

When benzene reacts with acetyl chloride (CH3COCL) in the presence of AlCl3, acetophenone is formed. The electrophile in this reaction is: (UHS 2017)

17 / 37

The benzene molecule contains (BWP 2015)(MTN 2016)(DGK 2018)(FSD 2019)

18 / 37

Aromatic compounds burn with sooty flame because: (DGK 2019)

19 / 37

The extra -ordinary stability of benzene molecule is due to: (ECAT 2014)

20 / 37

Aromatic hydrocarbons are the derivatives of (SGD 2015,2017)(MTN, GRW, LHR 2019)

21 / 37

Amongst THE following, the compound that can be most readily sulphonated: (DGK 2010)

22 / 37

Ortho, para derivatives are obtained by halogenation of: (BWP 2015)

23 / 37

Benzene in the presence of AlCl3 produces acetophenone when reacts with: (UHS 2011)

24 / 37

Aromatic compounds burn with sooty flame because: (DGK 2019)

25 / 37

Benzene cannot undergo: (MTN 2015, 2017)(GWR 2016)(FSD, MTN 2017)(SGD,SWL 2018)

26 / 37

Which compound is the most reactive one: (LHR, RWP 2015)(DGK 2016)(GRW 2015, 2019)(AJK, SWL 2019)(SGD 2019 GII)

27 / 37

The electrophile in aromatic sulphonation is: (FSD, BWP 2019)

28 / 37

The subsititution of a '-H' by '-NO2' group in benzene is called: (UHS 2011)

29 / 37

Benzene cannot undergo: (LHR 2016)(LHR, MTN, FSD 2017)

30 / 37

When a hydrogen atom is removed from benzene, the group left behind is called: (UHS 2010)

31 / 37

The introduction of RCO group in benzene is called (UHS 2012)

32 / 37

Benzene REACts with alkyl and acyl halides in the presence of ALCl3. This reaction is: (RWP 2008)

33 / 37

In benzene, the C-C bond length is: (AJK 2018)

34 / 37

Which is the moleculer formual of TNT? (RWP 2013)

35 / 37

Moleculer formula of Benzyl chloride is: (LHR 2019 GII)

36 / 37

During nitration of benzene, the active nitrating agent is: (SGD 2016)(GWR 2017)(DGK 2017, 2019)

37 / 37

The electrophile in aromatic sulphonation is: (FSD 2015)(SGD 2017)(mtn, grw, 2015,2019 GII)(DGK 2019 GII)

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