Question

which of those solution changes the ph value from7 to 3
(A)NaOH
(B)Mg(OH)2
(C)HCl
(D)H2SO4​

Answer 1

Answer:

c) hcl

is correct answer

Answer 2

Answer:

the ans is (a) NaOH(it changes from neutral state to the acid state) (HINT:just remember the word-BRA, B-blue, R-red, A-acid) (If the litmus paper changes from blue to red then it would be a Acid)