A. 2
B. 6
C. 4
D. 8
✅ The correct answer is option B.
Transition Elements MCQs
2. K2 (Cu(CN)4) which one is correct
A. Potassium tetra cyano recuperate
B. Co-ordination number is 2
C. The ligand is positively charged
D. Central atom is present in the avionic sphere
✅ The correct answer is option D.
3. The oxidation number of the central metal atom in [Ni(CO)4] is
A. 0
B. 2
C. 4
D. 6
✅ The correct answer is option C.
4. Group VIB of transition elements contains
A. Zn Cd Hg
B. Fe Ru Os
C. Cr Mo W
D. Mn Te Re
✅ The correct answer is option C.
5. The elements in which d or f orbitals are in the process of completion are
A. Outer transition elements
B. Inner transition elements
C. Typical transition elements
D. Transition elements
✅ The correct answer is option D.
6. The location of transition elements is in between
A. lanthanides & actinides
B. S and P block elements
C. Chalcogens and halogens
D. D and F block elements
✅ The correct answer is option B.
7. The melting points and boiling points up to the middle of 3d- series
A. Increases
B. Decreases
C. Remain same
D. No regular trend
✅ The correct answer is option A.
8. Pure metal
A. Corrode slowly
B. Corrode rapidly
C. Does not corrode easily
D. None of these
✅ The correct answer is option C.
9. Compounds attracted by applied strong magnetic field are called
A. Diamagnetic
B. Paramagnetic
C. Good conductor
D. Ferromagnetic
✅ The correct answer is option B.
10. The correct electronic configuration of Cr is
A. [Ar]4s23d4
B. [Ar] 4s23d4
C. [Ar]4s03d5
D. [Ar]4s13d5
✅ The correct answer is option D.