DOWNLOAD MOBILE APPLICATION TO LEARN MORE: CARBON AND ITS COMPOUNDS MCQ CLASS 10
DOWNLOAD MOBILE APPLICATION TO LEARN MORE: CARBON AND ITS COMPOUNDS MCQ CLASS 10
DOWNLOAD MOBILE APPLICATION TO LEARN MORE: CARBON AND ITS COMPOUNDS MCQ CLASS 10
POINTS TO REMEMBER
Bonding In Carbon – The Covalent Bond
■ Covalent bond is formed by mutual sharing of electrons between the two atoms so that each of the atoms attains noble gas configuration.
■ Covalent bond can be single, double or triple bond depending upon the number of shared pairs of electrons between them.
■ Carbon shares its valence electrons with atoms of various elements to form a variety of compounds.
■ Carbon can form single, double and triple covalent bonds with itself as well as with other atoms.
■ Covalent compounds generally have low melting and boiling points, low solubility in water and are non-conductors of electricity.
DOWNLOAD MOBILE APPLICATION TO LEARN MORE: CARBON AND ITS COMPOUNDS MCQ CLASS 10
Table of Contents
CARBON AND ITS COMPOUNDS MCQ CLASS 10
1. Carbon exists in the atmosphere in the form of
(a) Carbon monoxide only
(b) Carbon monoxide in traces and carbon dioxide
(c) Carbon dioxide only
(d) Coal
Ans. (b)
2. 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
(a) (i) and (iii)
(b) (ii) and (iii)
(c) (i) and (iv)
(d) (ii) and (iv)
Ans. (d)
3. A molecule of ammonia (NH3) has
(a) only single bonds
(b) only double bonds
(c) only triple bonds
(d) two double bonds and one single bond
Ans. (a)
4. Buckminster fullerene is an allotropic form of
(a) phosphorus
(b) sulphur
(c) carbon
(d) tin
Ans. (c)
5. Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of
(a) Addition reaction
(b) Substitution reaction
(c) Displacement reaction
(d) Oxidation reaction
Ans. (a)
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6. In which of the following compounds, -OH is the functional group?
(a) Butanone
(b) Butanol
(c) Butanoic acid
(d) Butanal
Ans. (b)
7 The soap molecule has a
(a) hydrophilic head and a hydrophobic tail
(b) hydrophobic head and a hydrophilic tail
(c) hydrophobic head and a hydrophobic tail
(d) hydrophilic head and a hydrophilic tail
Ans. (a)
8. Identify the unsaturated compounds from the following
(i) Propane
(ii) Propene
(iii) Propyne
(iv) Chloropropane
(a) (i) and (ii)
(b) (ii) and (iv)
(c) (iii) and (iv)
(d) (ii) and (iii)
Ans. (d)
9. Chlorine reacts with saturated hydrocarbons at room temperature in the
(a) absence of sunlight
(b) presence of sunlight
(c) presence of water
(d) presence of hydrochloric acid
Ans. (b)
10. In the soap micelles
(a) the ionic end of soap is on the surface of the cluster while the carbon chain is in the interior of the cluster.
(b) ionic end of soap is in the interior of the cluster and the carbon chain is out of the cluster.
(c) both ionic end and carbon chain are in the interior of the cluster.
(d) both ionic end and carbon chain are on the exterior of the cluster.
Ans. (a)
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11. Pentane has the molecular formula C5 H12. It has
(a) 5 covalent bonds
(b) 12 covalent bonds
(c) 16 covalent bonds
(d) 17 covalent bonds
Ans. (c)
12.Ethanol reacts with sodium and forms two products. These are
(a) sodium ethanoate and hydrogen
(b) sodium ethanoate and oxygen
(c) sodium ethoxide and hydrogen
(d) sodium ethoxide and oxygen
Ans. (c)
13. Vinegar is a solution of
(a) 50% – 60% acetic acid in alcohol
(b) 5% – 8% acetic acid in alcohol
(c) 5% – 8% acetic acid in water
(d) 50% – 60 % acetic acid in water
Ans. (c)
14. Mineral acids are stronger acids than carboxylic acids because
(i) mineral acids are completely ionised
(ii) carboxylic acids are completely ionised
(iii) mineral acids are partially ionised
(iv) carboxylic acids are partially ionised
(a) (i) and (iv)
(b) (ii) and (iii)
(c) (i) and (ii)
(d) (iii) and (iv)
Ans. (a)
15. Carbon forms four covalent bonds by sharing its four valence electrons with four univalent to e.g., hydrogen. After the formation of four bonds, carbon attains the electronic configuration of
(a) Helium
(b) Neon
(c) Argon
(d) Krypton
Ans. (b)
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16. The first member of alkyne homologous series is
(a) ethyne
(b) ethene
(c) Propyne
(d) methane
Ans. (a)
17. Ethane with molecular formula C₂H6 has
(a) 6 has covalent bonds
(b) 7 covalent bonds
(c) 8 covalent bonds
(d) 9 covalent bonds
Ans. (b)
18. Butanone is a four carbon compound with functional
(a) Carboxylic acid
(b) aldehydes
(c) ketone
(d) alcohol
Ans. (c)
19. While cooking if bottom of the vessel is getting blackened in the outside, it means that ;
(a) The food is not cooked completely
(b) The fuel is not burning completely
(c) The fuel is wet.
(d) The fuel is burning completely
Ans. (b)
20. Which of the following does not belong to the same homologous series?
(a) CH4
(b) C2H6
(c) C3H8
(d) C4H8
Ans. (d)
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ALSO VISIT :
10TH CBSE
DOWNLOAD MOBILE APPLICATION TO LEARN MORE: CARBON AND ITS COMPOUNDS MCQ CLASS 10