Carbon and Its Compounds
(MCQs)Q1: Which of the following is an odd compound?
(a) Ethene
(b) Ethane
(c) Propene
(d) Acetylene
Q2: Which one of the following is an unsaturated hydrocarbon?
(a) Acetylene
(b) Butane
(c) Propane
(d) Decane
Q3: Two neighbours of homologous series differ by
(a) -CH
(b) -CH2
(c) -CH3
(d) -CH4
Q4: General formula of alkyne is
(a) CnH2n+2
(b) CnH2n
(c) CnH2n-2
(d) CnHn
Q5: Which of the following represents alkynes?
(a) -C−C-
(b) -C=C-
(c) -C≡C-
(d) none of these
Q6: Which of the following represents ketones?
(a) -C=O(b) -OH
(c) -CHO
(d) -COOH
Q7: Which of the following is not an aliphatic hydrocarbon?
(a) ethene
(b) ethane
(c) propyne
(d) benzene
Q8: Complete combustion of a hydrocarbon gives
(a) CO + H2O
(b) CO2+ H2O
(c) CO + H2
(d) CO2 + H2
Q9: Which is NOT correct for isomers of a compound?
(a) they differ in physical properties
(b) they differ in chemical properties
(c) they have same molecular formula
(d) they have same structural formula
Q10: Buckminsterfullerene is an example of _______ of carbon
(a) an isomer
(b) an isotope
(c) an allotrope
(d) a functional group
Q11: Who prepared urea the first time by heating ammonium cynate?
(a) Wöhler
(b) Lavosier
(c) Fuller
(d) Habër
Q12: Butanone is a four-carbon compound with the functional group
(a) carboxylic acid.
(b) aldehyde.
(c) ketone.
(d) alcohol.
Q13: Major constituent of LPG is _________.
(a) ethene
(b) butane
(c) propane
(d) pentane
Q14: The gas used in welding and cutting metals is
(a) ethyne
(b) ethene
(c) ethane
(d) propene
Answers:
1: (b) Ethane
2: (a) Acetylene
3: (b) -CH2
4: (c) CnH2n-2
5: (c) -C≡C-
6: (a) -C=O
7: (d) benzene
8: (b) CO2+ H2O
9: (d) they have same structural formula
10: (c) an allotrope
11: (a) Wöhler
12: (c) ketone
13: (b) butane
14: (a) ethyne
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