Latest NDA Aptitude Question SOLUTION: Three elements Na, S and O combine to from a compound Na2SO6. What is the valency of S this compound ?
(A) 2+ (B) 4+ (C) 6+ (D) 8+
maths is very interesting subject if u like it math also like u if u dont like maths dont like u
Aman Tiwari
mathematics never dies because it always stays in the minds and souls of people who love mathematics.
Those people will not let maths die instead they will die.................