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Q.

The atomic numbers of elements A,B,C and D are Z-1,Z,Z+1 and Z+2, respectively. If ‘B’ is a noble gas, choose the correct answers from the following statements

a) ‘A’ has higher electron affinity 

b) ‘C’ exists in +2 oxidation state. 

c) C is more electropositive in the group 

c) D’ is an alkaline Earth metal.

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a

b&c

b

a&b

c

a&c

d

a,b&c

answer is C.

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Detailed Solution

detailed_solution_thumbnail

A                  B                   C             D Z-1             Z               Z+1    Z+2 Halogen     Noble gas       IA             IIA 

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