⇦ | ⇨ |
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→ 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.
Related Questions: - 0.45 g acid of molecular weight 90 was neutralise by 20 mL of 0.5 N KOH
- A 5 molar solution of H₂SO₄ is diluted from 1 liter to a volume of 10 litres
- Copper metal crystallizes with a face centred cubic (fcc) lattice .It has
- Which of the following shows geometrical isomerism
- The functional isomer of ethanol is
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
- 0.45 g acid of molecular weight 90 was neutralise by 20 mL of 0.5 N KOH
- A 5 molar solution of H₂SO₄ is diluted from 1 liter to a volume of 10 litres
- Copper metal crystallizes with a face centred cubic (fcc) lattice .It has
- Which of the following shows geometrical isomerism
- The functional isomer of ethanol is
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
I also think it must be 2 but according to NCERT and other websites it is 3 thus confusing