MCQ
Which will have minimum Osmotic pressure?
- A$200\,mL\,\,2\,M\,NaCl$ solution
- ✓$200 \,mL\,\,1\,M$ glucose solution
- C$200\, mL\,\,2\,M$ urea solution
- Dall have same
$\pi \rightarrow$ osmotic pressure
$C \rightarrow$ molarity
$NaCl$ is a strong electrolyte
$\pi_{ a }=2 RT$ ( $\because NaCl$ gives two ions on dissociation)
$\pi_{ b }= RT$ for glucose
$\pi_{ c }=2 RT$ for urea
$\therefore$ Glucose solution has minimum osmotic pressure
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$Q + Cl ^{-} \rightarrow X$
$Q + Me _3 N \rightarrow Y$
$Q + CuCl _2 \rightarrow Z + CuCl$
$X$ is a monoanion having pyramidal geometry. Both $Y$ and $Z$ are neutral compounds. Choose the correct option($s$).
$(1)$ The central atoms in $X$ is $sp ^3$ hybridized
$(2)$ The oxidation state of the central atom in $Z$ is $+2$
$(3)$ The central atom in $Z$ has one lone pair of electrons
$(4)$ There is a coordinate bond in $Y$