MCQ
Which of the following has minimum freezing point
  • A
    $0.1\,M$ ${K_2}C{r_2}{O_7}$
  • B
    $0.1 \,M$  $N{H_4}Cl$
  • C
    $0.1\,M $ $BaS{O_4}$
  • $0.1\,M $ $A{l_2}{(S{O_4})_3}$

Answer

Correct option: D.
$0.1\,M $ $A{l_2}{(S{O_4})_3}$
d
(d) We know that lowering of freezing point is a colligative property which is directly proportional to the number of particles formed by one mole of compound therefore $0.1\,M$  $A{l_2}{(S{O_4})_3}$ solution will have minimum freezing point.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Salicylaldehyde can be prepared from
Three reactions involving $H_2PO_4^-$ are given below :

$(i)\, H_3PO_4+H_2O \rightarrow H_3O^+ + H_2PO_4^-$

$(ii)\, H_2PO 4^- + H_2O \rightarrow  HPO_4^{2-} + H_3O^+$

$(iii)\, H_2PO_4^-+ OH^- \rightarrow  H_3PO_4 + O^{2-}$

In which of the above does $H_2PO_4^-$ act as an acid ?

Which of the following is most basic
Consider a $70 \%$ efficient hydrogen-oxygen fuel cell working under standard conditions at 1 bar and $298 K$. Its cell reaction is

$H _2( g )+\frac{1}{2} O _2( g ) \rightarrow H _2 O (\ell)$

The work derived from the cell on the consumption of $1.0 \times 10^{-3} mol$ of $H _2( g )$ is used to compress $1.00 mol$ of a monoatomic ideal gas in a thermally insulted container. What is the change in the temperature (in $K$ ) of the ideal gas ?

The standard reduction potentials for the two half-cells are given below.

$\left. O _2( g )+4 H ^{+} \text {(aq. }\right)+4 e ^{-} \rightarrow 2 H _2 O (\ell), E ^{\circ}=1.23 V,$

$\left.2 H ^{+} \text {(aq. }\right)+2 e ^{-} \rightarrow H _2( g ), E ^{\circ}=0.00 V.$

Use $F =96500 C mol ^{-1}, R =8.314 J mol ^{-1} K ^{-1}$

Heat treatment of muscular pain involves radiation of wavelength of about 900 nm . Which spectral line of H atom is suitable for this ?
Given: Rydberg constant
$
\left.R_{H}=10^5 cm^{-1}, h=6.6 \times 10^{-34} J s, c=3 \times 10^8 m / s\right)
$
In a buffer solution containing equal concentration of $B^-$ and $HB,$ the $K_b$ for $B^-$ is $10^{-10}.$ The $pH$ of buffer solution is
A solution contains $25\%$  ${H_2}O$ , $25\% {C_2}{H_5}OH$ and $50\%$ $C{H_3}\,COOH$ by mass. The mole fraction of ${H_2}O$ would be
The equivalent weight of $MnS{O_4}$ is half its molecular weight when it is converted to
Which of the following statements is incorrect
Red precipitate is obtained when ethanol solution of dimethylglyoxime is added to ammoniacal $Ni(II).$ Which of the following statements is not true?