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WorksheetsCarbon and its compound
Total questions: 50
Worksheet time: 2hrs 37mins
Which of the following is not in versatile nature of carbon?
Carbon forms covalent Bonds
Tetravalency
Self Catenation
Ionic bond
Why does carbon form compounds mainly by covalent bonding?
There are four electrons in the outermost shell of carbon.
It requires large amount of energy to form C4+ or C4-
It shares its valence electrons to complete its octet.
All of the above
Which of the following is not an Allotrope of carbon ?
Diamond
Graphite
Monoclinic
Buckminsterfulleren
What do you call the compounds having the same molecular formula but different structural arrangements of atoms?
Isomers
Isotopes
Isopentane
With whom carbon will not make covalent bond
Carbon
Oxygen
Hydrogen
Sodium
Define the structure of diamond
Each carbon atom in diamond crystal is linked to four other carbon atoms by strong covalent bonds.
Each carbon atom in diamond is linked to three other carbon atom by strong covalent bonds to form hexagonal rings.
It is a football shaped spherical molecule
In homologous series successive compounds differ by
H2
CH2
C2H3
What is the general formula for alkane
CnH2n+2
CnH2n
CnH2n-2
Which of the following is the characteristics of homologous series?
All the members of a homologous series can be represented by the same general formula
Any two adjacent homologoues differ by CH2
All the compounds of homologous series show similar chemical properties
All of the above
What is the next term of C5H10 if it is in homologous series
C6H12
C2H3
CH2
CH4
Cl —Cl
Which covalent bond is being formed
Double covalent bond
Singal covalent bond
Triple covalent bond
The property of self - combination of the atoms of the same element to form long chains is known as
Protonation
Carbonation
Coronation
Catenation
Which of the following chain is not form by carbon
Straight chain
Branched chain
Closed chain
Circular chain
Write the electron dot structure of ethane molecule (C2H6).
The organic compound prepared by Friedrich Wholer from inorganic compounds called ammonium cyanate was
Glucose
Urea
Uric acid
Vinegar
What are the two properties of carbon which lead to the huge number of carbon compounds?
Tetravalency of carbon
Property of self Catenation
Covalent bonds happen easily
All of the above
What is general formula for alkene?
CnH2n
CnH2n+2
CnH2n-2
CnH2
Which of the following series are in in homologous series
C3H8, C4H10, C5H12
CH2, C3H5, C4H10
C3H6, C3H8, C4H8
Name the scientist who disproved the 'vital force theory ' for the formation of organic compounds.
Fredrich wohler
Buckminster fuller
Isaac Newton
Stephen Hawking
Which type of covalent bond is being formed
Single covalent bond
Double covalent bond
Triple covalent bond
None of these
Assertion : graphite conduct electricity.
Reason : graphite doesn't have any free electron.
A and R both is true and R is correct reason of A
A and R is true and R is not correct reason for A
A is true R is false
A is false R is true
Which of the following bond have double covalent bond.
C3H8
C3H6
CH4
C2H6
C2H4, C3H6, C4H8, C5H10
This is the homologous series of
Alkenes
Alkanes
Alkynes
The next homlogue of C2H5OH is
C3H8OH
C3H7OH
C2H5OH
C5H8OH
The number of carbon atoms present in the molecule of fifth member of the homologous series of alkynes is :
4
5
6
7
Which of the following structures correctly represents the electron dot structure of a chlorine molecule?
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
Which of the following compounds of carbon does not consist of ions?
CHCl3
CaCO3
NaHCO3
Ca2C
Which of the following statements about graphite and diamond is true?
They have the same crystal structure
They have the same degree of hardness
They have the same electrical conductivity
They can undergo the same chemical reactions
How many number of carbon atoms are joined in a spherical molecule of buckminsterfullerene?
30
60
90
120
Which of the followings is the major constituent of the liquefied petroleum gas?
Methane
Ethane
Propane
Butane
From which of the following substance pencil lead is formed?
Charcoal
Wood
Lead
Graphite
What type of bond is made up of a large number of organic compound
Metallic bond
Ionic bond
Covalent bond
Dipolar bond
A compound will be covalent if
cation is of small size with a high charge
cation is of large size with a small charge
anion is of small size with a small charge
anion is of small size with a high charge
Covalent bond which is correct
Sharing of electrons
Occurs between non-metals
Compounds are not soluble in water
All of the above
Which is not a characteristic of a covalent bond
Formed between two similar electronegative non-metals
Definite shape
Low Melting and boiling point
High polarity and less flammable
Which statement best explains why substances made of small molecules cannot conduct electricity?
They have no charged particles that are free to move from place to place
They cannot move from place to place
They have no charged particles
None
In the nitrogen molecule, N2 how many electrons are shared?.
2
4
3
6
What is the greatest number of covalent bonds that one carbon atom can form?
2
3
4
5
The rule that states that atoms will tend to bond in such a way that they will gain 8 electrons in their outermost energy shell is the______.
Kirchoff's law
Octet Rule
Eighth principle
Valence electron rule
Which of the following substance has covalent bonding
Germanium
Sodium chloride
solid neon
Copper
General formula for alkyne
CnH2n
CnH2n—2
CnH2n+2
CH2
Assertion(A) : Carbon is the only element that can form large number of compounds.
Reason (R) : Carbon is tetravalent and shows the property of catenation.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true
Assertion(A) : Diamond and graphite are allotropes of carbon.
Reason (R) : Some elements can have several different structural forms while in the same physical state. These forms are called allotropes.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
Assertion(A) : Carbon compounds can form chain, branched and ring structures.
Reason (R) : Carbon exhibits the property of catenation.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false
A is false but R is true
Assertion(A): Graphite is soft and slippery to touch.
Reason (R) : Graphite has sheet like layered structure.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true
Assertion(A): Diamond is not good conductor of electricity.
Reason: It has no free electrons.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
Assertion(A): Two members of a homologous series have similar chemical properties.
Reason (R) : Propane and butane are members of same homologous series.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false
A is false but R is true
Assertion(A): Diamond is the hardest natural known substance.
Reason (R) : Diamond is used for cutting marble, granite and glass.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false
A is false but R is true.
With whom carbon will not make covalent bond
Hydrogen
Oxygen
Sodium
