Which of the following mainly gives superoxide on heating
(A) Li
(B) Na
(C) Mg
(D) Cs

Which of the following is superoxide ?

Which one of the following compounds is a superoxide?

Which of the following pairs are isoelectronic ? Na, Mg

Which of the following does not give NO_(2) by heating at 500^(circ)C ?

Which of the following pairs would have a larger size? Explain. Li^(+) or Na^(+)

Which one of the following is most reactive? Li Na K Rb

Which of the following pairs would have a smaller size. Explain. (a) Na^(o+) or Mg^(2+) , (b) O^(2-) or F^(ɵ) (c ) P or As

K, Rb and Cs form mainly superoxides.

Which of the following salts will give highest pH in water (a)KCl (b)NaCl (c) Na_2CO_3 (d)All of these

Which one of the following is most metallic? Na Mg Al Si