WBJEE · Chemistry · Surface Chemistry
Point out the false statement.
- A Colloidal sols are homogeneous
- B Colloids carry + ve or - ve charges
- C Colloids show Tyndall effect
- D The size range of colloidal particles is \(10-1000 \mathrm{A}\)
Answer & Solution
Correct Answer
(A) Colloidal sols are homogeneous
Step-by-step Solution
Detailed explanation
Option (a) is false as colloidal sols are not homogeneous. Colloidal sols are heterogeneous mixture of dispersed phase and dispersion medium.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- Which of the following compounds does not exhibit optical isomerism?
en = ethylenediamine).WBJEE 2015 Easy - In a reversible chemical reaction at equilibrium, if the concentration of any one of the reactants is doubled, then the equilibrium constant willWBJEE 2012 Medium
- Reaction of \(\mathrm{R} \mathrm{OH}\) with \(\mathrm{R}^{\prime} \mathrm{MgX}\) produces :WBJEE 2009 Easy
- \([X]+\) dil. \(\mathrm{H}_{2} \mathrm{SO}_{4} \longrightarrow[Y]:\)
Colourless, suffocating gas
\([Y]+\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}+\mathrm{H}_{2} \mathrm{SO}_{4} \longrightarrow\)
Green colouration of solution
Then, \([X]\) and \([Y]\) areWBJEE 2018 Medium - To a solution of colourless sodium salt, a solution of lead nitrate was added to have a white precipitate which dissolves in warm water and reprecipitates on cooling. Which of the following acid radical is present in the salt?WBJEE 2022 Hard
- For the reaction. \(X_{2} Y_{4}(I) \rightarrow 2 X Y_{2}(g)\) at \(300 \mathrm{K}\), the values of \(\Delta U\) and \(\Delta\) S are \(2 \mathrm{kcal}\) and 20 cal \(\mathrm{K}^{-1}\) respectively. The value of \(\Delta G\) for the reaction isWBJEE 2015 Medium
More PYQs from WBJEE
- If \(\mathrm{a}=2 \sqrt{2}, \mathrm{~b}=6, \mathrm{~A}=45^{\circ}\), thenWBJEE 2009 Medium
- Under identical conditions, the \(\mathrm{S}_{\mathrm{N}} 1\) reaction will occur most efficiently withWBJEE 2012 Easy
- The value of \(2 \cot ^{-1} \frac{1}{2}-\cot ^{-1} \frac{4}{3}\) isWBJEE 2015 Medium
- If \(\omega \neq 1\) is a cube root of unity, then the sum of the series \(S=1+2 \omega+3 \omega^2+\ldots \ldots \ldots . .+3 n \omega^{3 n-1}\) isWBJEE 2011 Hard
- If the coefficient of \(x^{8}\) in \(\left(a x^{2}+\frac{1}{b x}\right)^{13}\) is equal to the coefficient of \(x^{-8}\) in \(\left(a x-\frac{1}{b x^{2}}\right)^{13},\) then \(a\) and \(b\) will satisfy the relationWBJEE 2014 Medium
- When \(\mathrm{AgCl}\) is treated with \(\mathrm{KCN}\)WBJEE 2010 Medium