Two tetravalent elements A and B form dioxides.Both react with NaOH to form similar salts. lfloorOAO is 180^@ .lfloor ul(OBO)is 109^(@)28^(1). Both are acidic in nature. A and B are respectively

Two tetravalent elements A and B form dioxides.Both react with NaOH to

1.	Two tetravalent elements A and B form dioxides.Both react with NaOH to form similar salts. lfloorOAO is 180^@ .lfloor ul(OBO)is 109^(@)28^(1). Both are acidic in nature. A and B are respectively
Answer» C and S S and SI C and Si Si and C Answer :C