Per NCERT §3.7.1(a), the COVALENT RADIUS of a non-metal atom is defined as which quantity?
AAtomic mass × 1 pm
BHalf the distance between two like atoms bound by a single covalent bond (e.g. Cl–Cl 198 pm → r=99 pm)
CThe full bond length
DTwice the bond length
Answer & Solution
Correct answer: B. Half the distance between two like atoms bound by a single covalent bond (e.g. Cl–Cl 198 pm → r=99 pm)
Per NCERT §3.7.1(a), Cl₂ bond = 198 pm → r_Cl covalent = 99 pm. Half the X–X bond length.
Related questions
Coupling of benzenediazonium chloride with phenol gives:Iodobenzene is obtained by treating the diazonium salt with:Introducing halogen using copper powder and a halogen acid is the:Replacing the diazo group by chlorine using a copper one salt is the:Benzenediazonium chloride is made from aniline and nitrous acid at:Aniline fails to undergo the Friedel-Crafts reaction because it:Aniline heated with sulphuric acid finally yields:The activating power of the amino group is curbed by: