1.

Which of the following elements form basic oxides? (a) an element with atomic number 10 (b) an element with atomic number 12 (c) an element with atomic number 16 (d) an element with atomic number 19 (1) a and c (2) b and c (3) c and d (4) b and d

Answer»

(4) b and d 

Elements of s-block forms basic oxides 

‘Mg’ with atomic number 12 and 

‘K’ with atomic number 19 will form basic oxides



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