Download App

STD 12 -1. Solution and colligative properties — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 -1. Solution and colligative properties4 Marks
MCQ
Choose the correct statement about henry’s constant.

$(I)\,\,K_H$ increases with increase in temperature generally.

$(II)\,\,K_H$ decreases with increase in temperature generally.

$(III)\,\, K_H$ is the characteristic constant of gas solvent system.

  • ✓
    $(I)$ and $(III)$
  • B
    $(II)$ and $(III)$
  • C
    $(I)$ and $(II)$
  • D
    None of these
✓

Answer

Correct option: A.
$(I)$ and $(III)$
a
Vapour pressure of solution $= P_A + P_B$

$ = p_A^o{x_A} + p_B^o{x_B} = \frac{{120 \times 2}}{5} + \frac{{180 \times 3}}{5} = 156\,mm\,Hg$

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

Explore more

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The compound in which carbon uses only its $s{p^3}$ hybrid orbitals for bond formation is
→
Which of the following ionic/molecular species does not disproportionate in water at room temperature?
→
In a complex, the highest possible coordination number is
→
 $\begin{array}{*{20}{c}}
  {C{H_3} - CH - C{H_2} - C{H_3}\xrightarrow[\Delta ]{{KOH}}product} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {Cl\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} 
\end{array}$

Possible number of elimination products (alkene) of the given reaction is?

→
Identify from the following species in which $d ^2 sp ^3$ hybridization is shown by central atom:
→
Which of the following compounds can be best prepared by Wurtz-reaction ?
→
The equilibrium constant for the reaction

$SO_3(g) \rightleftharpoons  SO_2(g)+ \frac{1}{2} O_2(g)$

is $K_c= 4.9 \times 10^{-2}.$ The value of $K_c$ for the reaction

$2SO_2(g) + O_2(g) \rightleftharpoons  2SO_3(g)$

will be

→
$IUPAC$ name is
→
Which of following orders is correct for heat of hydrogenation of these compounds ?
→
In which of the following compounds transition metal is in oxidation state zero
→