AP EAMCET · Chemistry · Classification of Elements and Periodicity in Properties
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
(1) ' \(A\) ' has higher electron affinity
(2) ' \(C\) ' exists in +2 oxidation state
(3) ' \(D\) ' is an alkaline earth metal
- A (1) and (2)
- B (2) and (3)
- C (1) and (3)
- D \((1),(2)\) and (3)
Answer & Solution
Correct Answer
(C) (1) and (3)
Step-by-step Solution
Detailed explanation
Given, Atomic number of element \(B=Z\) ( \(\because\) noble gas \(\quad \therefore\) belong to zero group) Atomic number of element \(A=Z-1\) (ie, halogens) Atomic number of element \(C=Z+1\) (ie, group IA) Atomic number of element \(D=Z+2\) (ie, group IIA) \(\because\) Element…
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