TS EAMCET · Chemistry · Redox Reactions
The equivalent weight of which of the following is maximum? (Given: atomic weights \(\mathrm{Na}=23, \mathrm{Mn}=55, \mathrm{Cr}=52, \mathrm{~K}=\) \(19, \mathrm{O}=16, \mathrm{C}=12)\)
- A \(Na_2C_2O_4.2H_2O\)
- B \(\mathrm{KMnO}_4 \mid \mathrm{H}^{+}\)
- C \(\mathrm{KMnO}_4 \mid \mathrm{H_2O}\)
- D \(\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7 \mid \mathrm{H}^{+}\)
Answer & Solution
Correct Answer
(A) \(Na_2C_2O_4.2H_2O\)
Step-by-step Solution
Detailed explanation
Equivalent weight \(=\frac{\text { Molar mass }}{\mathrm{N}-\text { factor }}\) \(=\frac{\text { Molar mass }}{\text { Number of } \mathrm{e}^{-} \text {lost or gained }}\) for, \(\mathrm{Na}_2 \mathrm{C}_2 \mathrm{O}_4 ; \mathrm{E}=\frac{134+36}{2}=85\) for,…
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