Class 10 Carbon And Its Compounds CBSE Questions & Answers

Class 10 · Carbon And Its Compounds

This is online test 01 for CBSE class 10 Science Carbon and its Compounds.. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
The functional group present in ethanol is
  • A
    alcoholic group
    Correct
  • B
    Ester group
  • C
    Carboxyl group
  • D
    Aldehydic group
2
Next homologue of \({{\rm{C}}_{\rm{5}}}{{\rm{H}}_{{\rm{11}}}}{\rm{COOH}}\) is
  • A
    None of these
  • B
    \({{\rm{C}}_{\rm{6}}}{{\rm{H}}_{{\rm{13}}}}\) COOH
    Correct
  • C
    \({{\rm{C}}_{\rm{7}}}{{\rm{H}}_{{\rm{15}}}}\) COOH
  • D
    \({{\rm{C}}_{\rm{4}}}{{\rm{H}}_{\rm{9}}}\) COOH
3
Which of the following is used for antifreeze mixture
  • A
    HCHO
  • B
    \({\rm{C}}{{\rm{H}}_{\rm{3}}}\) COOH
  • C
    \({\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{OH}}\)
  • D
    \({{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{5}}}{\rm{OH}}\)
    Correct
4
How many structural isomers are possible for pentane-
  • A
    3.0
    Correct
  • B
    1.0
  • C
    4.0
  • D
    2.0
5
Which end of soap dissolves in water
  • A
    both Ionic end and polar end
    Correct
  • B
    Non polar end
  • C
    polar end
  • D
    Ionic end
6
Which of the following ingredients are used in making soap
  • A
    cotton seed oil, KOH
  • B
    Castor oil, NaoH
    Correct
  • C
    soyabean oil, \({\rm{Ca}}{\left( {{\rm{OH}}} \right)_{\rm{2}}}\)
  • D
    Mustard oil, NaoH
7
Reduction is the process of
  • A
    None of these
  • B
    addition of hydrogen
  • C
    both removal of oxygen and addition of hydrogen
    Correct
  • D
    removal of oxygen
8
Which among the following is a cleaner fuel
  • A
    None of these
  • B
    \({\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{OH}}\)
  • C
    \({{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{5}}}{\rm{OH}}\)
    Correct
  • D
    \({{\rm{C}}_{\rm{3}}}{{\rm{H}}_{\rm{1}}}{\rm{OH}}\)
9
Which of the following substances produce hydrogen on reacting with metals.
  • A
    \({{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{5}}}{\rm{OH}}\)
    Correct
  • B
    All of these
  • C
    \({{\rm{H}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\)
  • D
    Water (\({{\rm{H}}_{\rm{2}}}{\rm{O}}\))
10
Hardness of water is caused by
  • A
    \({\rm{CaC}}{{\rm{l}}_{\rm{2}}}\)
  • B
    All of these
    Correct
  • C
    \({\rm{CaS}}{{\rm{O}}_{\rm{4}}}\)
  • D
    \({\rm{Mg}}{\left( {{\rm{HC}}{{\rm{O}}_{\rm{3}}}} \right)_{\rm{2}}}\)
11
Hydrocarbon with molecular formula \({{\rm{C}}_{\rm{4}}}{{\rm{H}}_{{\rm{1}}0}}\)has
  • A
    13 covalent bonds
    Correct
  • B
    6 covalent bonds
  • C
    7 covalent bonds
  • D
    10 covalent bonds
12
Butanone is a four carbon compound with the functional group -
  • A
    - CO -
    Correct
  • B
    - CHO
  • C
    - OH
  • D
    - COOH
13
The odour of ethanoic acid resembles which one of the following
  • A
    pungent
  • B
    Rose
  • C
    vinegar
    Correct
  • D
    kerosene
14
Which one of the following is not in liquid state at \({\rm{1}}{0^0}{\rm{c}}\) ?
  • A
    \({{\rm{H}}_{\rm{2}}}{\rm{O}}\)
  • B
    Glacial acetic acid
    Correct
  • C
    Acetone
  • D
    \({{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{5}}}{\rm{OH}}\)
15
Sodium stearate is chemically
  • A
    Detergent
  • B
    Soap
    Correct
  • C
    baking soda
  • D
    Bleaching powder