Question

32
A few elements are represented as:
W zx y z
The valencies of elements V, W, X, Y and Z are
respectively
A. 5. 1.3. 8 and 2
B. 3. 1. 1.0 and 2
C 1.9.7.0 and 4
D. 5, 7, 1, 8 and 2​

Answer 1

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