CBSE Class 10 Science 2020 · Paper 31/3/1 · Question 12(b)
Consider the following statements about an element ‘X’ with number of protons 13.
(A) It forms amphoteric oxide
(B) Its valency is three
(C) The formula of its chloride is
The correct statements(s) is/are
- (a)only (A)
- (b)only (B)
- (c)(A) and (C)
- (d)(A), (B) and (C)
Answer
(d) (A), (B) and (C)
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