MCQ
For a very diluted solution preferred concentration unit is
- APercentage of mass
- BMolarity
- ✓Parts per million
- DMolality
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| Item $I$ | Item $II$ |
| $A$ Ester test | $P$ Tyr |
| $B$ Carbylamine test | $Q$ Asp |
| $C$ Phthalein dye test | $R$ Ser |
| $S$ Lys |
$I_2 + 2e^-\to 2I^-$ ; $E^o = 0.54 \,V$
$MnO_4^-+ 8H^+ + 5e^-\to Mn^{2+} + 4H_2O$ ; $E^o = 1.52\, V$
$Fe^{3+} + e^-\to Fe^{2+}$ ; $E^o = 0.77\, V$
$Sn^{4+} + 2e^-\to Sn^{2+}$ ; $E^o = 0.1\, V$
The strongest reducant and oxidant respectively are :
