10th Chemistry Chapter 4 Exercise Test Online – MCQ Test
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Chapter 4
Hydrocarbons
Which one of these hydrocarbon molecules would have no effect on an aqueous solution of bromine?
a) CH4
b) C10H20
c) C2H4
d) C2H2
If an organic compound has 4 carbon atoms, all singly bonded, it will have the following
characteristics except one:
a) It will be a saturated hydrocarbon.
b) It will have 8 hydrogen atoms.
c) Its name will be n-butane.
d) It will be least reactive.
The reduction of alkyl halides takes place in the presence of:
a) Zn/HCl
b) Na/HCl
c) Mg/HCl
d) Cu/HCl
Halogenation of methane does not produce:
a) Carbon tetrachloride
b) Chloroform
c) Carbon black
d) Chloromethane
Incomplete combustion of alkanes produces:
a) Carbon dioxide only
b) Carbon monoxide only
c) Carbon monoxide and carbon black
d) Carbon dioxide and carbon black
Alkenes are prepared from alcohols by a process called:
a) Dehydrogenation
b) Dehalogenation
c) Dehydration
d) Dehydrohalogenation
Dehydrohalogenation takes place in the presence of:
a) Aqueous NaOH
b) Alcoholic KOH
c) Aqueous KOH
d) Alcoholic NaOH
Oxidation of ethene with KMnO4 produces:
a) Oxalic acid
b) Glyoxal
c) Ethane glycol
d) Propene glycol
Which one of these is a saturated hydrocarbon?
a) C2H4
b) C3H6
c) C4H8
d) C5H12
A hydrocarbon has the molecular formula C8H14. What is the molecular formula of
the next member of the same homologous series?
a) C9H18
b) C9H16
c) C9H20
d) C9H12
What is the molecular formula for the eighth alkane member, octane, which is found in petrol?
a) C8H8
b) C8H16
c) C8H18
d) C8H20
One of the hydrocarbons reacts with one mole of hydrogen to form a saturated hydrocarbon. What could be
the formula of X?
a) C3H8
b) C6H12
c) C4H10
d) C7H16
Dehydration of alcohols can be carried out with:
a) NaOH
b) KOH
c) H2SO4
d) HCl
The end product of oxidation of acetylene is:
a) Oxalic acid
b) Glyoxal
c) Glycol
d) None of these
Dehalogenation of tetrahalides produces acetylene. This reaction takes place in the presence of:
a) Sodium metal
b) Zinc metal
c) Magnesium metal
d) Potassium metal
Substitution reaction is the characteristic of:
a) Alkanes
b) Alkenes
c) Alkynes
d) None of these
Halogenation of methane in the presence of diffused sunlight takes place:
a) Suddenly, only in one step
b) Slowly in one step
c) In a series of four steps
d) Fastly in two steps
Which one of the following is a substitution reaction?
a) Halogenation of alkynes
b) Halogenation of alkenes
c) Halogenation of alkanes
d) Bromination of alkenes
The order of reactivity of hydrogen halides with alkenes is:
a) HI > HBr
b) HBr > HI
c) HCl > HBr
d) HBr < HCl
Oxidation of alkenes produces:
a) Glyoxal
b) Glycol
c) Oxalic acid
d) Formic acid
Online MCQ Test – 10th Chemistry Chapter 4
The online exercise test for 10th Chemistry Chapter 4 Hydrocarbons focuses solely on exercise MCQs, allowing students to strengthen their understanding of hydrocarbons, their types, and their applications. This test helps you practice the MCQs from the chapter’s exercise to ensure thorough preparation. For additional educational resources, visit Mr Pakistani, and explore our YouTube channel Asif Brain Academy for detailed tutorials and expert guidance.
10th Chemistry Chapterwise Online MCQ Test – Chapterwise
