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प्रश्न
Fill in the blank in the following sentence:
Two chlorine atoms combine to form a molecule. The bond between them is known as ..........
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उत्तर
Two chlorine atoms combine to form a molecule. The bond between them is known as a covalent bond.
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संबंधित प्रश्न
Give reason why carbon compounds are generally poor conductors of electricity.
What would be the electron dot structure of a molecule of sulphur which is made up of eight atoms of sulphur? (Hint – the eight atoms of sulphur are joined together in the form of a ring.)
State the type of bonding in the following molecule.
Water
Explain the bonding in methane molecule using electron dot structure.
Choose the most appropriate answer from the following list of oxides which fit the description.
A covalent oxide of a metalloid.
Draw the electron-dot structure of HCl compound and state the type of bonding.
The solution of one of the following compounds will not conduct electricity. This compounds is:
(a) NaCl
(b) CCl4
(c) MgCl2
(d) CaCl2
Buckminsterfullerene is an allotropic form of the element:
(a) phoshorus
(b) fluorine
(c) carbon
(d) sulphur
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
Explain the following term with example.
Homopolymer
The covalent bond in which the electrons are shared equally between the combining atoms.
What do you understand by lone pair and shared pair?
Explain the following:
Covalent compounds have low melting and boiling point.
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.
Magnesium chloride [ H=1, C=6, Mg=12, Cl=17].
Compound X consists of molecules.
Choose the letter corresponding to the correct answer from the options A, B, C and D given below:
X is likely to have a ______.
What do you understand by dipole (polar) molecule?
Name the anion present in the following compound:
When a barium chloride solution is added to a solution of compound B, a white precipitate insoluble in dilute hydrochloric acid is formed.
Define the functional group and complete the following table.
| S.I. No. | Functional Group | Compound | Formula |
| (1) | ______________ | _______________ |
C2H5OH |
| (2) | _______________ | _______________ | CH3CHO |
List two differences between the properties exhibited by covalent compounds and ionic compounds.
