Students are advised to practice the NCERT MCQ Questions for Class 10 Science Chapter 4 Carbon and Its Compounds with Answers Pdf free download is available here. MCQ Questions for Class 10 Science with Answers are prepared as per the Latest Exam Pattern. Students can solve these Carbon and Its Compounds Class 10 MCQs Questions with Answers and assess their preparation level.
Carbon and Its Compounds Class 10 MCQs Questions with Answers
Solving the Carbon and Its Compounds Multiple Choice Questions of Class 10 Science Chapter 4 MCQ can be of extreme help as you will be aware of all the concepts. These MCQ Questions on Carbon and Its Compounds Class 10 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Have a glance at the MCQ of Chapter 4 Science Class 10 and cross-check your answers during preparation.
Question 1.
Which amongst the following will conduct electricity?
(a) C6H12O6
(b) KCl(s)
(c) C2H5OH
(d) NaCl (aq)
Answer
(d) NaCl (aq)
Question 2.
Artificial flavour for orange is obtained from
(a) amyl acetate
(b) isoamyl valerate
(c) methyl butyrate
(d) octyl acetate
Answer
(d) octyl acetate
Question 3.
Which of the following contains covalent bond?
(a) MgCl2
(b) CaF2
(c) Al2O3
(d) HCl
Answer
(d) HCl
Question 4.
Assertion: Soaps are 100% biodegradable but do not work well with hard water.
Reason: Some detergents are not bio-degradable but work well with hard water.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
(e) Both A and R are false.
Answer
(b) Both A and R are true but R is not the correct explanation of A.
Question 5.
Ethanol reacts with Na metal to form
(a) CH3ONa + H2
(b) C2H5ONa + H2
(c) CH3COONa + H2
(d) CH3C00H + H2O
Answer
(b) C2H5ONa + H2
Question 6.
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
Answer
(b) carbon monoxide in traces and carbon dioxide
Question 7.
The number of covalent bonds in C4H10 is
(a) 10
(b) 8
(c) 13
(d) 12
Answer
(c) 13
Question 8.
Which of the following statements about graphite and diamond is true?
(a) They have the same crystal structure
(b) They have the same degree of hardness
(c) They have the same electrical conductivity
(d) They can undergo the same chemical reactions
Answer
(d) They can undergo the same chemical reactions
Question 9.
Which of the following is ethanol?
(a) CH3CHO
(b) CH3COOH
(c) CH3CH2
(d) CH3COOCH3
Answer
(c) CH3CH2
Question 10.
Solubility of alcohol in water is due to
(a) low density of alcohol
(b) volatile nature of alcohol
(c) ionisation
(d) hydrogen bonding
Answer
(d) hydrogen bonding
Question 11.
Butanone is a four carbon compound with the functional group
(a) carboxylic acid
(b) aldehyde
(c) ketone
(d) alcohol
Answer
(c) Ketone
Question 12.
Alcohols can be produced by the hydration of
(a) Alkenes
(b) alkynes
(c) alkanes
(d) acids
Answer
(a) Alkenes
Question 13.
The odour of acetic acid resembles that of
(a) Rose
(b) Burning Plastic
(c) Vinegar
(d) Kerosene
Answer
(c) Vinegar
Question 14.
Diamond is not a good conductor of electricity because
(a) It is very hard
(b) Its structure is very compact
(c) It is not soluble in water
(d) It has no free electrons to conduct electric current.
Answer
(d) It has no free electrons to conduct electric current.
Question 15.
The number of C-H bonds in ethane C2H6 molecule are
(a) 4
(b) 6
(c) 8
(d) 10
Answer
(b) 6
Question 16.
The by product in soap industry is
(a) Isoprene
(b) Ethylene glycol
(c) glycerol
(d) butane
Answer
(c) glycerol
Question 17.
Why does carbon form compounds mainly by covalent bonding?
(a) There are four electrons in the outermost shell of carbon.
(b) It requires large amount of energy to form C4+ or C4–
(c) It shares its valence electrons to complete its octet.
(d) All the above
Answer
(d) All the above
Question 18.
Which of the following will undergo addition reactions?
(a) CH4
(b) C3H8
(C) C2H6
(d) C2H4
Answer
(d) C2H4
Question 19.
When ethanoic acid is treated with NaHCO the gas evolved is
(a) H2
(b) CO2
(c) CH4
(d) CO
Answer
(b) CO2
Question 20.
Soaps are formed by the saponification of
(a) Alcohols
(b) simple ester
(c) carboxylic acids
(d) glycerides
Answer
(d) glycerides
Question 21.
C3H8 belongs to the homologous series of
(a) Alkynes
(b) Alkenes
(c) Alkanes
(d) Cyclo alkanes
Answer
(c) Alkanes
Question 22.
The first compound to be prepared in the laboratory was
(a) Methane
(b) Ethyl alcohol
(c) acetic acid
(d) Urea
Answer
(d) Urea
Question 23.
The number of isomers of pentane is
(a) 2
(b) 3
(c) 4
(d) 5
Answer
(b) 3
Question 24.
Enzyme which converts starch into glucose is
(a) Zymase
(b) Maltase
(c) Diastase
(d) Invertase
Answer
(a) Zymase
Question 25.
Rectified spirit is
(a) 50% ethanol
(b) 80% ethanol
(c) 95% ethanol
(d) 40 to 50% ethanol
Answer
(c) 95% ethanol
Question 26.
The IUPAC name of CH3CHO is
(a) Acetaldehyde
(b) Formaldehyde
(c) Methyl formaldehyde
(d) Ethanal
Answer
(d) Ethanal
Question 27.
Ethanol on complete oxidation gives
(a) acetic acid/ethanoic acid
(b) CO2 and water
(c) ethanal
(d) acetone/ethanone
Answer
(b) CO2 and water
Question 28.
Addition reactions are undergone by
(a) saturated hydrocarbons (alkanes)
(b) only alkenes
(c) only alkynes
(d) both alkenes and alkynes
Answer
(d) both alkenes and alkynes
Question 29.
Which of the following belongs to homologous series of alkynes?
C6H6, C2H6, C2H4, C3H4.
(a) C6H6
(b) C2H4
(C) C2H6
(d) C3H4
Answer
(d) C3H4
Question 30.
The first member of the alkyne homologous series is
(a) propyne
(b) ethyne
(c) methane
(d) ethene
Answer
(b) ethyne
Question 31.
A soap molecule has a
(a) hydrophobic head and hydrophobic tail
(b) hydrophobic head and hydrophilic tail
(c) hydrophilic head and hydrophilic tail
(d) hydrophilic head and hydrophobic tail
Answer
(d) hydrophilic head and hydrophobic tail
Question 32.
In diamond, each carbon atom is bonded to four other carbon atoms to form
(a) a hexagonal array
(b) a rigid three-dimensional structure
(c) a structure in the shape of a football
(d) a structure of a ring
Answer
(b) a rigid three-dimensional structure
Question 33.
IUPAC name of first member of homologous series of ketones is
(a) Ethanone
(b) methanone
(c) Propanone
(d) Butanone
Answer
(c) Propanone
Question 34.
– CHO represents the functional group
(a) esters
(b) carboxylic acid
(c) alcohols
(d) aldehydes
Answer
(d) aldehydes
Question 35.
While cooking, if the bottom of the vessels is getting blackened on the outside, it means that
(a) the fuel is not cooked completely.
(b) the fuel is not burning completely.
(c) the fuel is wet.
(d) the is burning completely.
Answer
(b) the fuel is not burning completely.
Question 36.
The difference in the formula and molecular masses of CH3OH and C2H5OH is
(a) CH3 and 16u
(b) CH2 and 14u
(c) CH4 and 18u
(d) CH3 and 16u
Answer
(b) CH2 and 14u
Question 37.
The self linkage property (catenation) is maximum in
(a) carbon
(b) silicon
(c) sulphur
(d) phosphorus
Answer
(a) carbon
Question 38.
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
Answer
(a) Addition reaction
Question 39.
Assertion: Ethanoic acid reacts with ethyl alcohol in presence of cone H2SO4 to form ethyl ethanoate.
Reason: Esters are used in ice creames and cold drinks.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
(e) Both A and R are false.
Answer
(b) Both A and R are true but R is not the correct explanation of A.
Question 40.
Ethane and ethene can be distinguished by
(a) Br2(l)
(b) Br2 (aq) water
(c) Cl2
(d) I2
Answer
(b) Br2 (aq) water
Hope the information shared regarding the NCERT MCQ Questions for Class 10 Science Chapter 4 Carbon and Its Compounds with Answers Pdf free download is true and genuine as far as our knowledge is concerned. If you feel any information regarding CBSE Class 10 Science Carbon and Its Compounds MCQs Multiple Choice Questions with Answers is missing do reach us and we will look into it and add it accordingly.