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Q.

Boron is a non-metal and is placed under groups 13 and period 2. Boron form bonds with other elements by


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a

Sharing 1 electron

b

Sharing 5 electrons

c

Sharing 2 electrons 

d

Sharing 3 electrons

answer is A.

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Detailed Solution

Boron is a non-metal and is placed under groups 13 and period 2. Borons form bonds with other elements by sharing 3 electrons.
A boron atom has 3 electrons in its outer level, and also there is no possibility of it reaching a noble gas structure by simple sharing of electrons. Therefore, boron donates the lone pair of electrons to form the fourth bond. In general, boron is the lightest of the elements in this group. It is non-metal. Also valency of boron is three.
 
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