| ⇦ | 
| ⇨ |
Boron has two stable isotopes, ¹°B(19%) and ¹¹B(81%). Average atomic weight for boron in the periodic table is
Options
(a) 10.8
(b) 10.2
(c) 11.2
(d) 10
Correct Answer:
10.8
Explanation:
Avg Atomic Mass = (RA1 x MN1 + RA2 x MN2) / (RA1+ RA2)
Where RA= Relative Abundance, MN= Mass Number
= 19 x 10 + 81 x 11 / 100 = 10.81
Related Questions: - The diazotization of two feebly basic aromatic amines is achieved by using
- 20 g of a non-volatile solute is added to 500 g of solvent. Freezing point
- preservative among the following is
- In the manufacture of ethanol from starch by fermentation,
- The half-life of a reaction is inversely proportional to the square of the
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
- The diazotization of two feebly basic aromatic amines is achieved by using
- 20 g of a non-volatile solute is added to 500 g of solvent. Freezing point
- preservative among the following is
- In the manufacture of ethanol from starch by fermentation,
- The half-life of a reaction is inversely proportional to the square of the
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
Leave a Reply