Question

A) Seven solutions A, B, C, D, E, F & G have pH 1, 2, 7, 9, 11, 13& 14 3+2
respectively.
i. Identify which of them is strongly acidic.
ii.
Identify which of them is neutral.
iii. Identify which of them is weakly basic.
iv.
Identify which of them is strongly basic.
Which of them will turn phenolphthalein pink?
vi. Which of them will turn methyl orange red?
B) Describe an activity to show that blue copper sulphate crystals have
water of crystallization.
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Answer 1

Solution E is neutral (pH= 7) <br> b) Solution F is (strongly alkaline (pH= 9) <br> c) Solution C is strongly acidic (pH = 1) <br> d) Solution A is weakly acidic (pH= 5) <br> Ascending order of increase of Hydrogen ion concentration is F, E, A, D, B, C.