MCQ
Of the following, the compound possessing optical isomerism
- A$C{H_3}C{H_2}OH$
- ✓$C{H_3}CHClBr$
- C$CC{l_2}BrF$
- D$CC{l_2}{F_2}$
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(Molar mass of $Na_2CO_3 = 106\ g\ mol^{-1} )$
Reason : In the complex, the coordination number of $Fe$ is $6$.
$(i)$ 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
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