Class 10 Science Science

MCQ Class 10 Science Carbon and Its Components with Answers

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CBSE Class 10 Science Chapter 4 Carbon And Its Compounds Multiple Choice Questions with Answers. MCQ Class 10 Science Carbon And Its Compounds with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 10 Science Carbon And Its Compounds MCQs with Answers to know their preparation level.

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Multiple Choice Questions - Set - 3

Question 1: 

From which of the following substance pencil lead is formed?

a) Charcoal

b) Wood

c) Lead

d) Graphite

Correct Answer – (D)

Question 2 : 

Which of the followings is the major constituent of the liquefied petroleum gas?

a) Methane

b) Ethane

c) Propane

d) Butane

Correct Answer – (D)

Question 3 : 

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

Correct Answer – (D)

Question 4 : 

The property of self-linkage among identical atoms to form long chain compounds is known as:

a) Catenation

b) Isomerisation

c) Superposition

d) Halogenation

Correct Answer – (A)
Catenation is the property of self-linking of an element by which an atom combines with the other atoms of the same element to form long chains.

Question 5 : 

The I.U.P.A.C name of CH3CH2CH=CH2 is?

a) 3-Butene

b) Prop-1-ene

c) But-1-ene

d) Butyne

Correct Answer – (C)
As the compound, CH3CH2CH=CH2 contains four carbon atoms and a double bond attached to the first carbon, so the I.U.P.A.C name of CH3CH2CH=CH2 is But-1-ene.

Question 6 : 

The organic compounds having functional group are known as:

a) Aldehyde

b) Ketone

c) Carboxylic acids

d) Alcohol

Correct Answer – (C)

Question 7 : 

How many number of carbon atoms are joined in a spherical molecule of buckminsterfullerene?

a) 30

b) 60

c) 90

d) 120

Correct Answer – (B)

Question 8 : 

Which of the following is the molecular formula of cyclobutane?

a) C4H10

b) C4H6

c) C4H8

d) C4H4

Correct Answer – (C)
Cyclobutane is a cyclic hydrocarbon consisting of four carbon atoms where each carbon atom is attached to the two other carbon atoms and two hydrogen atoms, as shown below:

Question 9 : 

Which of the following compounds of carbon does not consist of ions?

a) CHCl3

b) CaCO3

c) NaHCO3

d) Ca2C

Correct Answer – (A)

Carbon always forms covalent compounds by sharing its electrons with other atoms. Now, in covalent bonding, the two electrons shared by the atoms are attracted to the nucleus of both atoms and neither atom completely loses or gains electrons as in ionic bonding. So the compounds in which all the atoms are directly attached to C-atom, contain covalent bonding and no ionic bond.

In CHCl3, all the three chlorine atoms are bonded covalently to the carbon atom, not to the hydrogen atom. So CHCl3 is a covalent compound and does not consist of ions.

Question 10 : 

Cation is formed when:

a) Atom gains electrons

b) Atom loses electrons

c) Proton is lost by the atom

d) Atom shares electrons

Correct Answer – (B)
A cation is formed by loss electrons from the atom of an element which acquires positive charge due to the presence of greater number of protons as compared to that of electrons.
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NCERT Solutions & Download NCERT Textbooks

Multiple Choice Questions – Chapter 3 – Metals and Non-Metals

Set 1
Set 2
Set 3
Set 4
Set 5
Set 6

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