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Quiz 6
Mdcat-past-papers - ETEA - Chemistry Quiz
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Board: ETEA | Subject: Chemistry |
101. The isomers of a substance must have:
Same molecular mass
Same chemical properties
Same structural formula
Same functional group
102. The structural isomerism in which isomers are in dynamic equilibrium with each other is:
Chain isomerism
Position isomerism
Metamerism
Tautomerism
103. Enantiomers are examples of:
Cis isomers
Trans isomers
Optical isomers
Geometric isomers
104. The tautomer of propanol is:
Propanal
Propanone
Methyl ethyl ether
Butanone
105. Select the correct IUPAC name among the following:
2-Bromo-4-Chloro-3-iodopentane
4-Bromo-2-chloro-3-iodopentane
4-Bromo-2-iodo-3-chloropentane
2-Bromo-4-iodo-3-chloropentane
106. Which of the following prefixes is used when two methyl groups are attached with the second last carbon of an alkane chain?
n-
iso-
neo-
geminal
107. What is the composition of the alloy German silver?
Cu + Zn + Ni
Cu + Ag + Ni
Cu + Sn + Zn + Pb
Al + Cu + Mg + Mn
108. The final substitution product in chlorination of methane (with UV light & excess Cl₂) is:
Methylene chloride
Carbon tetrachloride
Methylene dichloride
Chloroform
109. The homolytic fission of a C–H bond in an alkane results in:
Alkyl free radical
Carbocation
Carbanion
Methyl free radical
110. Addition of HBr to isobutylene mainly gives:
Isobutyl bromide
Sec-butyl bromide
n-butyl bromide
tert-butyl bromide
111. Dehydrohalogenation of alkylhalide is carried out in presence of :
Alcoholic KOH
Concentrated H2SO4
Aqueous KOH
Zn Dust
112. Propyne reacts with aqueous sulfuric acid in the presence of HgSO₄ to form:
Acetone
1-Propanol
2-Propanol
Acetaldehyde
113. In the following molecules, which one has the shortest C–C bond length?
C₂H₆
C₂H₄
C₆H
C₂H₂
114. Which method is generally used to prepare alkynes?
Dehydrohalogenation of vicinal dihalides
Hydrolysis
Hydrogenation of alkene
Hydration of alkene
115. The electrophile considered as the active agent in the nitration of benzene is:
NO₂⁺
NO₂⁻
NOH
NHO₂
116. What will be the product when phenol reacts with concentrated HNO₃?
Picric acid
Para-nitrophenol
Ortho-nitrophenol
All of the above
117. Isopropyl benzene is also called:
Cumene
Xylene
Toluene
Cresol
118. Greater the resonance energy of a molecule?
Higher will be its reactivity
Lower will be its stability
The higher will be its stability
The higher will be its density
119. Which of the following alkyl halides has the highest boiling point?
n-butyl iodide
isobutyl iodide
isopropyl bromide
n-propyl bromide
120. Which one of the following is a nucleophile?
H₂O
AlCl₃
BF₃
Cl⁻
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