Question

Which of the following aqueous solutions turns blue
litmus paper to red?
a)Ca
b)NO
c)C3H7OH
d)SiO2
e)HI


.Which of the following aqueous solutions turns blue
litmus paper to red?
a)C2H5OH
b)Al(OH)3
c)NH3
d)HNO2
e)NaOH


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