Which of the following statement(s) is/are correct?

see full answer

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

Among the following elements: K, Mn, Cd, Cs, Fe, Cu, Pb, Os, Y. The number of transition element is 4.

All the lanthanides and actinides belong to III B or the 3rd group in the Periodic table.

The inner transition elements belong to the f' block of the periodic table and are shown separately at the bottom of the periodic table.

The d-block elements have variable valency.

answer is B.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Statement (1) is wrong. The number of transition elements is five (Mn, Fe, Cu, Os, Y).

Watch 3-min video & get full concept clarity