Question

aaj sst ka paper hai bata dena​

Answer 1

$\huge{\underline{\mathtt{\blue{❥A}\pink{N}\green{S}\red{W} \blue {E}\purple{R}}}}$

Valency is the combining power of an element. Elements in the same group of the periodic table have the same valency. The valency of an element is related to how many electrons are in the outer shell.

So the S has to be +6 in order to make the entire compound neutral. So then you have +2 for H, +6 for S and -8 for the O. This is the valency for H2SO4

Valency is the combining capacity of an element. ... It is determined by the element's atomic number. NaCl, being a compound, does not have a valency. If you wanted to know the valencies of Na (sodium) and Cl (chlorine), it is 1 for both.