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ICSE Class 10 Chemistry Question 3 of 23

Solved Sample Paper 3 — Question 12

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12
Question

Question 1(xii)

An element X belongs to group II A and another element Y belongs to group V A of the periodic table. Which of the following could be correct?

P. Valency of Y will be 5.

Q. Element X will have 2 valence electrons.

R. Element X belongs to group number 2

  1. Only P
  2. Q
  3. R
  4. Both Q and R
Answer

Both Q and R

Reason — Q and R are correct however, P is not correct as valency of Y will be equal to = 8 - 5 = 3