Assertion (A) – Complexes of central metal atom such as of Cu+ , Zn2+ , SC3+ , Ti4+ are colourless. Reason (R) – Cu+ , Zn2+ , SC3+ , Ti4+are having d0 or d10 configuration and because of it, d – d transition is not possible and so they are colourless. (a) Both A and R are correct and R is the correct explanation of A. (b) Both A and R are correct and R is not correct explanation of A. (c) Both A and R arc wrong. (d) A is correct but R is wrong.

Assertion (A) – Complexes of central metal atom such as of Cu+ , Zn2

1.	Assertion (A) – Complexes of central metal atom such as of Cu+ , Zn2+ , SC3+ , Ti4+ are colourless. Reason (R) – Cu+ , Zn2+ , SC3+ , Ti4+are having d0 or d10 configuration and because of it, d – d transition is not possible and so they are colourless. (a) Both A and R are correct and R is the correct explanation of A. (b) Both A and R are correct and R is not correct explanation of A. (c) Both A and R arc wrong. (d) A is correct but R is wrong.
Answer» (a) Both A and R are correct and R Is the correct explanation of A.