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 (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:

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

$\mathrm{1.79\; x}{\mathrm{10⁵}}^{}$

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.

Related Questions:

1. A solid compound XY has NaCl structure . If the radius of the cation is 100 pm,
2. Which of the following is not a thermodynamic function
3. In which of the following pairs of molecules/ions, the central atoms have
4. Gasoline has composition
5. Which of the following technique is most suitable for purification of cyclo

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

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends