MCQ
Which reagent is used to distinguish between secondary and tertiary amines?
- ANessler reagent
- BTollens reagent
- ✓Hinsberg's reagent
- DSchiff's reagent
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$E _{ Zn ^{2}+\mid Zn }^{ o }=-0.76 V$
Identify the incorrect statement from the options below for the above cell 
$A$. $\mathrm{Mn}_2 \mathrm{O}_7$ is an oil at room temperature
$B$. $\mathrm{V}_2 \mathrm{O}_4$ reacts with acid to give $\mathrm{VO}_2^{2+}$
$C$. $\mathrm{CrO}$ is a basic oxide
$D$. $\mathrm{V}_2 \mathrm{O}_5$ does not react with acid
Choose the correct answer from the options given below :
