12th Standard CBSE Syllabus & Materials
12th Standard CBSE
CBSE 12th Economics Government Budget and the Economy Previous year Question Papers Study Material - QB365 Set A
NEW12th Standard CBSE
CBSE 12th Computer Science Interface Python with MySQL - New Previous year Question Papers Study Material - QB365 Set A
NEW12th Standard CBSE
CBSE 12th Computer Science Database Concept - New Previous year Question Papers Study Material - QB365 Set A
NEW12th Standard CBSE
CBSE 12th Computer Science Data Communication - New Previous year Question Papers Study Material - QB365 Set A
NEW12th Standard CBSE
CBSE 12th Computer Science Data Structures - New Previous year Question Papers Study Material - QB365 Set A
NEW12th Standard CBSE
CBSE 12th Computer Science Functions - New Previous year Question Papers Study Material - QB365 Set A
Published on: 24/05/2021
QB365 Provides the updated NCERT Exemplar Questions for Class 12, and also provide the detail solution for each and every case study questions. NCERT Exemplar questions are latest updated question pattern from NCERT, QB365 will helps to get more marks in Exams
Download CBSE Class 12th Standard CBSE Chemistry question papers, sample papers, important questions, and previous year solved papers in PDF format. Get free study materials, NCERT solutions, and exam preparation resources for Class 12th Standard CBSE Chemistry
Questions + Answers key
Take MCQ Chemistry Test
1.
Which of the following phenomenon occurs when a chalk stick is dipped in ink?
adsorption of coloured sustance
adsorption of solvent
adsorption and dsorption both of solvent
absorption of solvent
2.
Which phenomenon occurs when an electric field is applied to a colloidal solution and electrophoresis is prevented?
Reverse osmosis takes place
Electroosmosis takes place
Dispersion medium begins to move
Dispersion medium becomes stationary
3.
Which of the following colloids cannot be coagulated easily?
Lyophobic colloids
Irreversible colloids
Reversible colloids
Lyophilic colloids
4.
An emulsion cannot be broken by.........................and......................... .
heating
adding more amount of dispersion medium
freezing
adding emulsisying agent
5.
H2 gas is adsorbed on activated charcoal to a very little extent in comparion to easily liquefiable gases due to................................ .
very strong van der Waals interaction
very weak van der Waals forces
very low critical temperature
very high critaical temperature
1.
When a chalk stick is dipped in ink, adsorption of coloured substance takes place and absorption of solvent occurs.
2.
(c)
Dispersion medium begins to move
3.
Lyophilic colloids are reversible colloids which cannot be easily coagulated, i.e., (c) and (d).
4.
An emulsion can be broken by heating or cooling, i.e., (a) and (b) and not by (b) and (d).
5.
(b)
very weak van der Waals forces
12th Standard CBSE Syllabus & Materials
12th Standard CBSE
CBSE 12th Computer Science Python Revision Tour I - New Previous year Question Papers Study Material - QB365 Set A
NEW12th Standard CBSE
CBSE 12th Business Studies Planning Important Questions And Answers Study Material - QB365 Set A
NEW12th Standard CBSE
CBSE 12th Business Studies Business Environment Important Questions And Answers Study Material - QB365 Set A
NEW12th Standard CBSE
CBSE 12th Business Studies Principles of Management Important Questions And Answers Study Material - QB365 Set A
NCERT Books
Syllabus
Exam Pattern
Sample Question Papers
Previous year Question Papers
Important Notes
MCQ Practice test
NCERT Exemplers
Case study Questions
Image Based Questions
Passage based Questions
HOT Questions
Value Based Questions
Model Questions Papers
NCERT ( Book Back ) Questions
Assertion and Reason
Important Questions And Answers
CBSE 12th Standard CBSE Subjects
CBSE Standards
