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Properties of Water

Which of the ...

Question

Which of the following properties can be assigned to water?
I. It has a permanent dipole moment attributed to its molecular structure.
II. It is a very good conductor of electricity.
III. It has its polar covalent bonds with hydrogen on opposite sides of the oxygen atom, so that the molecule is linear.

A

I only

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B

III only

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C

I and II only

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D

II and III only

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E

I, II and III

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Solution

The correct option is A I only
The property I only can be assigned to water.
I. It has a permanent dipole moment attributed to its molecular structure.
Water is polar in nature due to electronegativity difference between H atom and O atom.
The individual bond dipoles do not cancel each other as water has bent shape.
II. It is a non-conductor of electricity as it lacks ions.
III. It has its polar covalent bonds between hydrogen and oxygen which forms V shape for the molecule so that the molecule is non linear or bent.

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