Question

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) 'D' is an alkaline Earth metal.
1)a & b 2) b&c 31 a &c 4) a, b &c​

Answer 1

Answer:

3. a & c is correct answer.

Explanation:

B is noble gas with atomic no. z. So, A is Z-1 a halogen group element with high electron affinity. C ia Alkali metal with +1 oxidation state. D is alkaline earth metal.