The exact volumes of 1 M NaOH solution required to neutralise 50 mL of 1\ M\ H3PO3 solution and 100 mL of 2\ M\ H3PO2…
Redox Reactions · Class 11 · JEE Main Previous Year Question
The exact volumes of 1 M NaOH solution required to neutralise 50 mL of solution and 100 mL of solution, respectively, are:
- a
100 mL and 100 mL
- b
100 mL and 50 mL
- c✓
100 mL and 200 mL
- d
50 mL and 50 mL
100 mL and 200 mL
(phosphorous acid): Structure — 2 ionisable OH groups → basicity = 2
(hypophosphorous acid): Structure — 1 ionisable OH group → basicity = 1
Answer: Option (3) — 100 mL and 200 mL
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