1.

Match the List -I and List-II and select the correct set from the following sets given below: `{:((A)." The number of sub-energy levels in an energy level",(1)." "n^(2)),((B)." The number of orbitals in a sub-energy level",(2)." "3d),((C)." The number of orbitals in an energy level",(3)." "2l+1),((D)." n=3,l=2,m=0",(4)." "n):}`A. `{:((A),(B),"(C)","(D)"),("4","3","1","2"):}`B. `{:((A),(B),(C),(D)"),(3,1,2,4):}`C. `{:((A),(B),(C),(D)"),(1,2,3,4):}`D. `{:((A),(B),(C),(D)"),(3,4,1,2):}`

Answer» Correct Answer - A
Number of orbitals in a shell `=n^(2)`
Number of subshell in a shell=n
Number of orbitals in a subshell=(2l+l)
n=3,l=2,m=0 represents 3d


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