How Many Lone Pairs of Electrons Are Present Around the Central

question 16

Multiple Choice

How many lone pairs of electrons are present around the central atom in PCl₃?

• A) 0
• B) 1
• C) 2
• D) 3
• E) 20

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Definitions:

Sum

The result obtained by adding two or more numbers or expressions.

Sum

The result of adding two or more numbers or expressions together.

Polynomials

Algebraic expressions consisting of variables and coefficients, constructed from operations of addition, subtraction, multiplication, and non-negative integer exponents of variables.

Expression

A combination of numbers, variables, operators, and sometimes parentheses that represents a value or quantity.