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प्रश्न
Explain why, ionic compounds conduct electricity in solution whereas covalent compounds do not conduct electricity.
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उत्तर
An ionic compound consists of ions held by strong forces in solid state. But when an ionic compound dissolves in water to form a solution, the constituent ions get separated and they disperse across the solution. This helps in conducting an electric current through the solution. Covalent compounds are formed by the sharing of electrons. So ions that conduct electricity are not involved in these compounds. Hence covalent compounds do not conduct electricity.
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संबंधित प्रश्न
Give reason why carbon compounds are generally poor conductors of electricity.
Choose the most appropriate answer from the following list of oxides which fit the description.
A covalent oxide of a metalloid.
An element L consists of molecules.
What type of bonding is present in the particles that make up L?
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Draw the electron-dot structure of H2O compound and state the type of bonding.
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
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(a) C4H10
(b) C5H12
(c) C3H8
(d) C6H14
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(i) Strength of forces between constituent elements
(ii) Solubility of compounds in water
(iii) Electrical conduction in substances
Explain the following term with example.
Unsaturated hydrocarbon
Observe the straight chain hydrocarbons given below and answer the following
questions :
i) Which of the straight chain compounds from A and B is saturated and unsaturated straight chains?
ii) Name these straight chains.
iii) Write their chemical formulae and number of – CH2 - units.

Give examples for the following:
Two liquid non polar compounds.
Give reason as to why hydrogen chloride can be termed as a polar covalent compound.
The particles present in strong electrolytes are
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Write an Explanation.
Alkene
Write an Explanation.
Alkyne
Write a short note.
Characteristics of carbon
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
| \[\begin{array}{cc} \phantom{.........}\ce{H}\\ \phantom{.........}|\\ \ce{H - C ≡ C - C - H}\\ \phantom{.........}|\\ \phantom{.........}\ce{H} \end{array}\] |
