MCQ
Ethanol reacts with $H_2SO_4$ at $140^o$ to form
- AEthene
- BEthyl hydrogen sulphate
- ✓Ethoxy ethane
- DNone of these

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$(i)$ A $0.5\,m$ $NaBr$ solution has a higher vapour pressure than a $0.5\,m\,BaCl_2$ solution at the same temperature
$(ii)$ Pure water freezes at the higher temperature than pure methanol
$(iii)$ a $0.1\,m\,NaOH$ solution freezes at a lower temperature than pure water
Choose the correct answer from the codes given below
$F{e^2}+ \left( {aq} \right) + A{g^ + }\left( {aq} \right) \to F{e^{3 + }}\left( {aq} \right) + Ag\left( s \right)$
Given that:
$E_{Ag^+/Ag}^o = xV$
$E_{F{e^{2 + }}/Fe}^o = yV$
$E_{F{e^{3 + }}/Fe}^o = zV$

