In the final answer of the expression (29.2 – 20.2) (1.79 x 10⁵) / 1.37. The number

In The Final Answer Of The Expression 292 202 Chemistry Question

In the final answer of the expression (29.2 – 20.2) (1.79 x 10⁵) / 1.37. The number of significant figures is

Options

(a) 1
(b) 2
(c) 3
(d) 4

Correct Answer:

3

Explanation:

(2920.2)
It consists of two numbers, 29 has two significant figures and  20.2 has three significant figures.  The final result of this expression should have Two Significant Figures

1.79 x 10⁵

In scientific notation, the number of significant figures is taken from the non-exponent part of the number. 1.79 has three significant figures.

The Least of all is 2. So, the final result must be stated in scientific notation with two significant figures.

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Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Basic Concepts of Chemistry (94)
Subject: Chemistry (2512)

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