Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Chemistry S - Block Group 1 Elements (Alkali Metals)
Which of these metals will melt at body temperature?
1
Gallium and Cesium
2
Potassium and Iodine
3
Calcium and Rubidium
4
More than one of the above
5
None of the above