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Published on: 29/08/2019
Carbon and Its Compounds
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Questions + Answers key
Take MCQ Science Test
1.
Which of the following statements are usually correct for carbon compounds? These
i) are good conductors of electricity
ii) are poor conductors of electricity
iii) have strong forces of attraction between their molecules
iv) do not have strong forces of attraction between their molecules
(i) and (iii)
(ii) and (iii)
(i) and (iv)
(ii) and (iv)
2.
Carbon exists in the atmosphere in the form of
carbon monoxide only
carbon monoxide in traces and carbon dioxide
carbon dioxide only
coal
3.
While cooking, if the bottom of the vessel is getting blackened on the outside, it means that
the food is not cooked completely.
the fuel is not burning completely.
the fuel is wet.
the fuel is burning completely.
4.
Butanone is a four-carbon compound with the functional group
carboxylic acid
aldehyde
ketone
alcohol
5.
Ethane, with the molecular formula C2H6 has
6 covalent bonds
7 covalent bonds
8 covalent bonds
9 covalent bonds
6.
Write the name and formula of the 2ndmember of homologous series having general formula CnH2n-2
7.
Write the name and molecular formula of the first member of the homologous series of alkynes
8.
What is a homologous series of carbon compounds?
9.
Name the carbon compound which on heating with excess of concentrated sulphuric acid at 443 K gives ethene.
10.
What is the difference in the molecular formula of any two consecutive members of a homologous series of organic compounds?
1.
(d)
(ii) and (iv)
2.
(c)
carbon dioxide only
3.
(b)
the fuel is not burning completely.
4.
(c)
ketone
5.
(b)
7 covalent bonds
6.
Propyne C3H4
7.
Ethyne, C2H2
8.
A homologous series is the family of organic compound having the same functional group, and the successive (adjacent) members of which differ by CH2 unit or 14 mass unit
9.
CH3CH2OH, ethanol
10.
-CH2 - is the difference in the molecular formula of any two consecutive members of a homologous series of organic compounds.
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CBSE 10th Standard CBSE Subjects
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