Question

In the following table a $' -'$ represents a shared electron pair. Let us find out the similarities among the various entries in the table and have a grasp of the whole thing.

Accepted Answer

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. The covalent compound is a result of two non-metals reacting with each other such that they are electrically neutral.

Name of the compound Formula of the compound Valencies of participating elements Central atom Valency of central atom Preliminary structure of molecule Number of covalent bonds in molecule

Water $H_{2} O$ $O 2, H 1$ $O$ $2$
$2$

Hydrogen sulphide $H_{2} S$ $S 2, H 1$ $S$ $2$
$2$

Ammonia ${NH}_{3}$ $N 3, H 1$ $N$ $3$
$3$

Phosphine ${PH}_{3}$ $P 3, H 1$ $P$ $3$
$3$

Methane ${CH}_{4}$ $C 4, H 1$ $C$ $4$
$4$

Carbon tetrachloride ${CCl}_{4}$ $C 4, Cl 1$ $C$ $4$
$4$

Nitrogen trichloride ${NCl}_{3}$ $N 3, Cl 1$ $N$ $3$
$3$

Phosphorus trichloride ${PCl}_{3}$ $P 3, Cl 1$ $P$ $3$
$3$

West Bengal Board Solutions for Chapter: Element, Compound and Chemical Reaction, Exercise 11: Exercise 11

West Bengal Board Science Solutions for Exercise - West Bengal Board Solutions for Chapter: Element, Compound and Chemical Reaction, Exercise 11: Exercise 11

Questions from West Bengal Board Solutions for Chapter: Element, Compound and Chemical Reaction, Exercise 11: Exercise 11 with Hints & Solutions

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