Q.

Equimolar solutions of the following substances were prepared separately. Which one of these, record the highest pH value.

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a

NaCl

b

BeCl2

c

FeCl3

d

AlCl3

answer is A.

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Detailed Solution

Basic strength order of NaOH > Al(OH)3 ~ Be(OH)2 > Fe(OH)3Aqueous solution of NaCl is neutral [PH = 7] because it is a salt of strong acid and strong base the remaining 3 - aqueous solutions are acidic in nature as they salts of weak base acids [PH < 7]
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Equimolar solutions of the following substances were prepared separately. Which one of these, record the highest pH value.