Question:
Match list-I with list-II :
Choose the most appropriate answer the option given below:
Correct Option: , 2
Solution:
(a) $\mathrm{Be} \rightarrow$ it is used in the Windows of X-ray tubes
(b) $\mathrm{Mg} \rightarrow$ it is used in the Incendiary bombs and signals
(c) $\mathrm{Ca} \rightarrow$ it is used in the Extraction of metals
(d) $\mathrm{Ra} \rightarrow$ it is used in the Treatment of cancer