MCQ
When little vanadium is mixed with steel, it becomes
- AMore hard
- BMore tensility
- ✓Both $ (a)$ and $(b)$
- DNo effect
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$A.$ $Sm ^{2+}$ $B.$ $Ce ^{2+}$ $C.$ $Ce ^{4+}$ $D.$ $Tb ^{4+}$
Choose the most appropriate answer from the options given below :
