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प्रश्न
Fill in the blank in the following sentence:
In forming N2 molecule, .............. electrons are shared by each atom of nitrogen.
उत्तर
In forming an N2 molecule, three electrons are shared by each atom of nitrogen.
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संबंधित प्रश्न
Give reason why carbon compounds are generally poor conductors of electricity.
State one major difference between covalent and ionic bonds and give one example each of covalent and ionic compounds.
What type of bonds are present in CO2 molecule? Draw their electron-dot structures.
Fill in the blanks in the following sentence:
In forming oxygen molecule, .............. electrons are shared by each atom of oxygen.
Why does carbon form compounds mainly by covalent bonding?
Compare the properties of ionic compounds and covalent compounds.
Why is graphite used for making dry cell electrodes but diamond is not?
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Draw all possile structural formulae of compound from their molecular formula given below.
C4H10
Explain the following term with example.
Hetero atom in a carbon compound
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Explain the following:
Polar covalent compounds conduct electricity?
Taking MgCl2 as an electrovalent compound, CCl4 as a covalent compound, give four difference between electrovalent and covalent compounds
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Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
| \[\begin{array}{cc}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\ |\phantom{....}|\phantom{....}|\\\ce{H - C - C - C - H}\\ |\phantom{....}|\phantom{....}|\\\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H} \end{array}\] |
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
 |
Give an example for each of the following statement.
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The table shows the electronic structures of four elements.
| Element | Electronic Structure |
| P | 2, 6 |
| Q | 2, 8, 1 |
| R | 2, 8, 7 |
| S | 2, 8, 8 |
- Identify which element(s) will form covalent bonds with carbon.
- “Carbon reacts with an element in the above table to form several compounds.” Give suitable reason.
______ is an example of a covalent compound having a high melting point.
Molecular reactions are ______ in the covalent compound.
