JAMB Chemistry 2020 Objective — Question 22

Question 22 of 40 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2020 Objective paper, with the correct answer and a full explanation.

22. The correct indicator for a titration involving H2SO4 and Fe(OH)3 is

A. A. Litmus
B. B. phenolphthalein
C. C. methyl orangeCorrect
D. D. none of the above

Explanation

For a titration between a strong acid (H2SO4) and a weak base (Fe(OH)3), methyl orange is the appropriate indicator (colour change occurs in the acidic pH range at the equivalence point).

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