Which of the following elements will form an acidic oxide?
A. An element with atomic number 7
B. An element with atomic number 3
C. An element with atomic number 12
D. An element with atomic number 19
Answer:A
Which of the following elements will form an acidic oxide?
A. An element with atomic number 7 B. An element with atomic number 3 C. An element with atomic number 12 D. An element with atomic number 19
Explanation: Non-metals form acidic oxides. The element with atomic number 7 is a non-metal (nitrogen). Rest three elements with atomic numbers, 3 (Li), 12 (Mg) andl9 (K) are metals and hence, form basic oxides.