हिंदी

Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e.g. hydrogen. After the formation of four bonds, carbon attains the electronic configuration of - Science

Advertisements
Advertisements

प्रश्न

Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e.g. hydrogen. After the formation of four bonds, carbon attains the electronic configuration of

विकल्प

  • helium

  • neon

  • argon

  • krypton

MCQ
Advertisements

उत्तर

neon

Explanation - 

Carbon shares its valence electrons with other atoms of carbon or with atoms of other elements. The shared electrons belong to the outermost shells of both the atoms and lead to both atoms attaining the noble gas configuration. After sharing four electrons with four univalent atoms, carbon attains the electronic configuration of the noble gas Neon (2,8).

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 4: Carbon and its Compounds - Multiple Choice Questions [पृष्ठ ३२]

APPEARS IN

एनसीईआरटी एक्झांप्लर Science [English] Class 10
अध्याय 4 Carbon and its Compounds
Multiple Choice Questions | Q 21. | पृष्ठ ३२

वीडियो ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्न

What type of bonds are present in water molecule? Draw the electron-dot structure of water (H2O).


What type of bonds are present in H molecule? Draw their electron-dot structures.


Fill in the blank in the following sentence:

The number of single covalent bonds in C2H2 molecule are ...........


What is buckminsterfullerene?


Draw the electron-dot structure of NHand state the type of bonding. 


Write two points of difference in the structures of diamond and graphite.


Explain why, diamond can be used in rock drilling equipment but graphite cannot.


A saturated hydrocarbon has fifty hydrogen atom in its molecule. The number of carbon atoms in its molecule will be
(a) twenty five
(b) twenty four
(c) twenty six
(d) twenty seven


What do you understand by polar covalent compounds?


Explain, giving reason, why carbon neither forms C4+ cations nor C4− anions, but forms covalent compounds which are bad conductors of electricity and have low melting point and low boiling point. 

Match the pairs.

Group 'A' Group 'B'
a. C2H6 1. Unsaturated hydrocarbon
b. C2H2 2. Molecular formula of an alcohol
c. CH4O 3. Saturated hydrocarbon
d. C3H6 4. Triple bond

Draw an electron dot structure of the following molecule. (Without showing the circle) :
Ethene


The carbon compound is used in daily life is ______.


Give examples for the following:
Two gaseous polar compounds.


Acids dissolve in water to produce positively charged ions. Draw the structure of these positive ions.


Give reason as to why hydrogen chloride can be termed as a polar covalent compound.


Draw an electron dot diagram to show the formation of the following compound.
Methane


Potassium chloride is an electrovalent compound, while hydrogen chloride is a covalent compound, But, both conduct electricity in their aqueous solutions. Explain.


Write the molecular formula of the given compound.

Propylene


The correct structural formula of butanoic acid is


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×