Which of the following are true for transition metals ?
1) They are melleable and ductile
2 ) They are good conductor of heat and electricity
3) They have high electron affinity
4 ) They are gases at room temprature
1,2 and 4
2,3 and 4
1,2 and 3
only 1 ,2
The physical property of d block elements -
Option 1 and 2 are correct.