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Why Are Covalent Compounds Generally Poor Conductors of Electricity? - Science

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प्रश्न

Why are covalent compounds generally poor conductors of electricity?

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उत्तर

Covalent compounds are generally poor conductors of electricity because they do not contain ions that can move freely and pass electricity.

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अध्याय 3: Metals and Non-metals - Exercise 2 [पृष्ठ १६९]

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लखमीर सिंग Chemistry (Science) [English] Class 10
अध्याय 3 Metals and Non-metals
Exercise 2 | Q 45.7 | पृष्ठ १६९

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संबंधित प्रश्न

Buckminsterfullerene is spherical molecule in which 60 carbon atoms are arranged in interlocking hexagonal and pentagonal rings of carbon atoms.
How many hexagons of carbon atoms are present in one molecule of buckminsterfullerene?


Which inert gas does the H atom in HCl resemble in electron arrangement?


State any two uses of diamond.


Two non-metals combine with each other by the sharing of electrons to form a compound X.
(a) What type of chemical bond is present in X?
(b) State whether X will have a high melting point or low melting point.
(c) Will it be a good conductor of electricity or not?
(d) Will it dissolve in an organic solvent or not?


Explain the Structural isomerism term with example.


Write answer as directed.
Saturated hydrocarbons are classified into three types. Write these names giving one example each.


Molecular formula of Propane is C3H8 , write the structural formula of propane.


Explain the following briefly:
Cl2 is a non polar molecule, while HCl is a polar molecule.


Give examples for the following:
Two solid covalent compounds.


Explain the following:
Polar covalent compounds are good conductors of electricity.


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Fill in the blank with correct word from the bracket.
Melting and boiling points of covalent compounds are generally ______ (low, high).


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


State the type of bond formed when the combining atom has small E.N. difference.


Taking MgCl2 as an electrovalent compound, CCl4 as a covalent compound, give four difference between electrovalent and covalent compounds


Name the anion present in the following compound:

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Identify the incorrect statement and correct them.

  1. Like covalent compounds, coordinate compounds also contain charged particles (ions). So they are good conductors of electricity. 
  2. Ionic bond is a weak bond when compared to Hydrogen bond.
  3. Ionic or electrovalent bonds are formed by mutual sharing of electrons between atoms. 
  4. Loss of electrons is called Oxidation and gain of electron is called Reduction.
  5. The electrons which are not involved in bonding are called valence electrons.

The number of single and double bonds present in a molecule of benzene (C6H6) respectively, are ______.


In covalent compounds, the bond is formed due to ______ of electrons.


Explain dipole (polar) molecule by taking hydrogen chloride as an example.


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