1 View

Question : Which of the following pairs of "elements - valency" is correct?
I. Boron - 2
II. Fluorine - 3

Option 1: Neither I nor II

Option 2: Both I and II

Option 3: Only II

Option 4: Only I


Team Careers360 2nd Jan, 2024
Answer (1)
Team Careers360 24th Jan, 2024

Correct Answer: Neither I nor II


Solution : The correct answer is Neither I nor II .

Although it might seem like Boron could have a valency of 2 because it has three valence electrons, it tends to form compounds by sharing those 3 electrons, achieving a stable octet for each atom. Therefore, its valency is 3, not 2. Fluorine has only seven electrons and needs just one more electron to achieve a stable octet. Thus, its valency is 1, not 3.

How to crack SSC CHSL

Candidates can download this e-book to give a boost to thier preparation.

Download Now

Know More About

Related Questions

TOEFL ® Registrations 2024
Apply
Accepted by more than 11,000 universities in over 150 countries worldwide
Manipal Online M.Com Admissions
Apply
Apply for Online M.Com from Manipal University
View All Application Forms

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

150M+ Students
30,000+ Colleges
500+ Exams
1500+ E-books