Question : What is the valency of Boron?
Option 1: 2
Option 2: 3
Option 3: 4
Option 4: 1
Correct Answer: 3
Solution : The correct option is 3
Boron, being an element with atomic number 5, has three valence electrons. It often forms three covalent bonds in compounds. The valency of boron in many of its compounds is thus considered to be 3.
Result | Eligibility | Application | Selection Process | Cutoff | Admit Card | Preparation Tips
Question : Two elements which are used to absorb neutrons to control the chain reaction during nuclear fission are
Question : Which of the following is used as control rods in Atomic reactor?
Question : What is the ratio of inradius and circumradius of an equilateral triangle?
Question : Which of the following is used as a coolant in an atomic reactor?
Question : Which of the following is used as fuel rods in an atomic reactor?
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile