In a water molecule, there is/are ______ valence electron(s) of oxygen which do not take part in the covalent bond formation.

one

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three

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four

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two

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Solution

The correct option is C four
Oxygen has six electrons in its valence shell. It shares two electrons with two hydrogen atoms to form $H_{2} O$ molecule. Hence, there are four electron which do not take part in covalent bond formation with hydrogen.
The electron dot structure of water molecule is given below:

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Q. In a water molecule, there is/are ______ valence electron(s) of Oxygen which do not take part in the covalent bond formation.

Q. The valence electrons are involved in formation of covalent bonds is/are called :

Choose the number of electron pairs that do not participate in the covalent bond formation for the oxygen molecule.

Q. How many valence electrons of each oxygen are involved in the formation of a molecule of oxygen?

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