x xx 10^(-2) gm of NaOH should be used up to prepare 200ml of a solution with P^(H)= 12. Find the value of x

x xx 10^(-2) gm of NaOH should be used up to prepare 200ml of a soluti

1.	x xx 10^(-2) gm of NaOH should be used up to prepare 200ml of a solution with P^(H)= 12. Find the value of x
Answer» All are correct 1, 4 are only correct 1,2,3 are only correct All are wrong Solution :on dilution , pH increase for acid (b)pH `= 5 rArr [H^(+) ] = 10 ^(-5) ` ` pH = 11 rArr [H^(+) ] = 10 ^(-3) ` `THEREFORE 100 `times more basic ( c )`pH = 8 rArr [H^(+) ] = 10 ^(-8)` `pH = 11 rArr [H^(+) ] =10 ^(-11) ` `therefore 100 `times more acidic (d)KOH is basic ` 10 ^(-9)` M KOH `rArr pH gt 7`but SLIGHTLY GREATER