A + B C + D. If finally the concentration of A and B are both equ… - Vidyadip

MCQ

$A + B$ $\rightleftharpoons$ $C + D$. If finally the concentration of $A $ and $B$ are both equal but at equilibrium concentration of $ D$ will be twice of that of $A$ then what will be the equilibrium constant of reaction.

A
$4 / 9$
B
$9/4$
C
$1/9$
✓
$4$

✓

Answer

Correct option: D.

$4$

(d) $A + B $ $ \rightleftharpoons $ $C + D$

$x$ $x$ $0$ $0$

$2x$ $2x$

${K_c} = \frac{{[C][D]}}{{[A][B]}} = \frac{{2x\,.\,2x}}{{x\,.\,x}} = 4$

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

More "M.C.Q (1 Marks)" from 6.1. Equilibrium - 1 (chemical Equilibrium)→6.1. Equilibrium - 1 (chemical Equilibrium) — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Which of the following combination of reagents does not undergo redox reaction in aqueous medium?

Components of buffer solution are $0.1\,M\,HCN$ and $0.2\,M\,NaCN$. What is the $pH $ of the solution

All reactions which have chemical disintegration

In order to oxidise a mixture of one mole of each of $FeC _{2} O _{4}$ $Fe _{2}\left( C _{2} O _{4}\right)_{3}, FeSO _{4}$ and $Fe _{2}\left( SO _{4}\right)_{3}$ in acidic medium, the number of moles of $KMnO _{4}$ required is:

Identify total number of mono chlorinated products when $2-$ methyl pentane react with $Cl_2 /hv$?

If the pressure in a reaction vessel for the following reaction is increased by decreasing the volume, what will happen to the concetrations of $CO$ and $CO_2$ ?

${H_2}O(g){\mkern 1mu} {\mkern 1mu} + {\mkern 1mu} CO{\mkern 1mu} (g){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \rightleftharpoons \,{H_2}(g)\, + \,C{O_2}(g)\, + \,Heat{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} $

If ${10^{21}}$ molecules are removed from $200\,mg $ of $C{O_2}$, then the number of moles of $C{O_2}$ left are ..........$\times {10^{ - 3}}$

Identify the substance acting as oxidant in the following reaction.

$BaCl_2 + Na_2SO_4 \to BaSO_4 + 2NaCl$

How many electrons are present in $2\times10^{-3}$ $mol$ of ${}_8^{18}{O^{ - 2}}$ ?

Which of these species has a standard enthalpy of formation equal to zero?