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

Similar questions

Metal oxides which decomposes on heating is
Which of the following order is correct in spectrochemical series of ligands?
Assertion : Benzyl bromide when kept in acetone water, it produces benzyl alcohol.
Reason : The reaction follows ${S_{{N^2}}}$ mechanism
The compound that will react most readily with $ NaOH $ to form methanol is
Consider the following reactions :

$(i)$ Glucose $+ ROH \quad \stackrel{\text { dry } HCl }{\longrightarrow}$ Acetal

$\xrightarrow[{{{\left( {C{H_3}CO} \right)}_2}O}]{{x\,eq.of}}$ acetyl derivative

$(ii)$ Glucose $\xrightarrow{{Ni/{H_2}}}A\xrightarrow[{{{\left( {C{H_3}CO} \right)}_2}O}]{{y\,\,eq.\,of}}$ acetyl derivative.

$(iii)$ Glucose $\xrightarrow[{{{\left( {C{H_3}CO} \right)}_2}O}]{{z\,ed.\,of}}$ acetyl derivative.

$' x ^{\prime},{ }^{\prime} y ^{\prime}$ and ${ }^{\prime} z^{\prime}$ in these reactions are respectively.

A zero order reaction is one whose rate is independent of
The energy of the electron in the first orbit of $He^+$ is $-871.6\times 10^{-20}\,J$. The energy of the electron in the first orbit of hydrogen would be
Match the metal ions given in Column$- I$ with the spin magnetic moments of the ions given in Column$-II$ and assign the correct code

Column$-I$ Column$-II$
$(a)\;Co^{+3}$ $(i)\;\sqrt{8}\; B.M.$
$(b)\;Cr^{+3}$ $(ii)\;\sqrt{35}\; B.M.$
$(c)\;Fe^{+3}$ $(iii)\;\sqrt{3}\; B.M.$
$(d)\;Ni^{+2}$ $(iv)\;\sqrt{24}\; B.M.$
  $(v)\;\sqrt{15}\; B.M.$

$(a)\quad (b)\quad (c)\quad (d)$

$A$ is :
A sugar X dehydrates very slowly under acidic condition to give furfural which on farther reaction with resorcinol gives the coloured product after sometime. Sugar X is: