NEET Chemistry MCQ: NCERT Colloidal State | NEET.Guide Questions

Which statement is FALSE regarding the process of dialysis used for purifying colloids?

A

The membrane used is permeable to colloidal particles but not to crystalloids.

B

The driving force for the process is the concentration difference across the membrane.

C

Crystalloids can pass through the membrane, but colloids cannot.

D

Dialysis is a slow process.

Question Tags

📚 Subject:Chemistry

📑 Chapter:Surface Chemistry

🎯Topic:Colloidal State

🎓 Ncert Level:Understanding

🎯Difficulty :Hard

⚡ Time Required :1 mins

🔄Ncert Concepts :Colloids, Dialysis, Purification

Related Questions

Pumice stone is an example of which type of rock?

A

Intrusive igneous rock

B

Sedimentary rock

C

Metamorphic rock

D

Extrusive igneous rock

Question Tags

📚 Subject:Chemistry

📑 Chapter:Surface Chemistry

🎯Topic:Colloidal State

PYQ YEAR: 2023

🎓 Ncert Level:Remembering

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :Rocks, Igneous Rocks, Volcanic Rocks

Below critical micelle concentration (CMC)

A

Salt behaves as normal electrolyte

B

Substances like grease, fat dissolve by emulsification

C

The viscosity of solution is very high

D

Surfactant molecules undergo association to form cluster

Question Tags

📚 Subject:Chemistry

📑 Chapter:Surface Chemistry

🎯Topic:Colloidal State

🎓 Ncert Level:Understanding

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Critical Micelle Concentration (CMC), Electrolytes, Surfactants, Micelles

The coagulation values in millimoles per litre of the electrolytes used for the coagulation of ${\rm{A}}{{\rm{s}}_{\rm{2}}}{{\rm{S}}_{\rm{3}}}$ are given belowI) ${\rm{(}}NaCl{\rm{)}}\,{\rm{ = }}\,{\rm{5.2}}$ II) ${\rm{(}}BaC{l_2}{\rm{)}}\,{\rm{ = }}\,0.69$ III) ${\rm{(}}MgS{O_4}{\rm{)}}\,{\rm{ = }}\,0.22$ The correct order of their coagulating power is

A

III > I > II

B

I > II > III

C

II > I > III

D

III > II > I

Question Tags

📚 Subject:Chemistry

📑 Chapter:Surface Chemistry

🎯Topic:Colloidal State

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Coagulation, Hardy-Schulze rule, Electrolyte concentration

Among the following, the surfactant that will form micelles in aqueous solution at the lowest molar concentration at ambient conditions, is

A

${\rm{C}}{{\rm{H}}_3}{\left( {{\rm{C}}{{\rm{H}}_2}} \right)_{15}}{{\rm{N}}^ + }{\left( {{\rm{C}}{{\rm{H}}_3}} \right)_3}{\rm{B}}{{\rm{r}}^ - }$

B

${\rm{C}}{{\rm{H}}_3}{\left( {{\rm{C}}{{\rm{H}}_2}} \right)_{11}}{\rm{OSO}}_3^ - {\rm{N}}{{\rm{a}}^ + }$

C

${\rm{C}}{{\rm{H}}_3}{\left( {{\rm{C}}{{\rm{H}}_2}} \right)_6}{\rm{CO}}{{\rm{O}}^ - }{\rm{N}}{{\rm{a}}^ + }$

D

${\rm{C}}{{\rm{H}}_3}{\left( {{\rm{C}}{{\rm{H}}_2}} \right)_{11}}{{\rm{N}}^ + }{\left( {{\rm{C}}{{\rm{H}}_3}} \right)_3}{\rm{B}}{{\rm{r}}^ - }$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Surface Chemistry

🎯Topic:Colloidal State

🎓 Ncert Level:Analyzing

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :surfactants, micelles, critical micelle concentration (CMC), hydrophobic effect

Zeta potential measurements are crucial for understanding which characteristic of a colloidal solution?

A

Viscosity

B

Tyndall effect

C

Stability

D

Concentration

Question Tags

📚 Subject:Chemistry

📑 Chapter:Surface Chemistry

🎯Topic:Colloidal State

PYQ YEAR: 2020

🎓 Ncert Level:Understanding

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :Colloids, Zeta Potential, Stability

Which is not the correct matching of emulsions

A

Milk : O/W

B

Cold Cream : W/O

C

Butter : O/W

D

Vanishing cream : O/W

Question Tags

📚 Subject:Chemistry

📑 Chapter:Surface Chemistry

🎯Topic:Colloidal State

🎓 Ncert Level:Understanding

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Emulsions, Oil-in-water (O/W) emulsions, Water-in-oil (W/O) emulsions

Mention the type of reaction to obtain ${\rm{Au}}\left( {{\rm{sol}}} \right)$ .

Reaction,

$2{\rm{AuC}}{{\rm{l}}_3} + 3{\rm{HCHO}} + 3{{\rm{H}}_2}{\rm{O}} o 2{\rm{Au}}\left( {{\rm{sol}}} \right) + 3{\rm{HCOOH}} + 6{\rm{HCl}}$

A

Hydrolysis

B

Oxidation

C

Reduction

D

Double decomposition

Question Tags

📚 Subject:Chemistry

📑 Chapter:Surface Chemistry

🎯Topic:Colloidal State

🎓 Ncert Level:Analyzing

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Redox reaction, Oxidation state

Which of the following has minimum flocculation value

A

$P{b^{ + 2}}$

B

$P{b^{ + 4}}$

C

$S{r^{ + 2}}$

D

$N{a^ + }$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Surface Chemistry

🎯Topic:Colloidal State

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Flocculation Value, Hardy-Schulze rule

Arrange the following electrolytes in increasing order of coagulation in power for $A{S_2}{S_3}$ sol $\begin{array}{*{20}{c}}

{{{\rm{A}}{\rm{1}}}}&{{{\rm{A}}{\rm{2}}}}&{{{\rm{A}}_{\rm{3}}}}&{{{\rm{A}}_4}}\

{{{\rm{K}}{\rm{2}}}{\rm{S}}{{\rm{O}}{\rm{4}}}}&{{\rm{CaC}}{{\rm{l}}{\rm{2}}}}&{{\rm{N}}{{\rm{a}}{\rm{3}}}{\rm{P}}{{\rm{O}}{\rm{4}}}}&{{\rm{AlC}}{{\rm{l}}{\rm{3}}}}

\end{array}$

A

A1 < A2 < A3 < A4

B

A3 < A1 < A2 < A4

C

A1 (or A3) < A2 < A4

D

A4 < A2 < A1 (or A3)

Question Tags

📚 Subject:Chemistry

📑 Chapter:Surface Chemistry

🎯Topic:Colloidal State

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :coagulation, Harde-Schulze rule, electrolytes

Which of the following has minimum flocculation value

A

$P{b^{ + 2}}$

B

$P{b^{ + 4}}$

C

$S{r^{ + 2}}$

D

$N{a^ + }$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Surface Chemistry

🎯Topic:Colloidal State

🎓 Ncert Level:Understanding

🎯Difficulty :Medium

⚡ Time Required :2 mins

🔄Ncert Concepts :Flocculation, Hardy-Schulze rule, charge of ions

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