CBSE Class 11 Chemistry VBQs Basic Concepts of Chemistry

Scroll down for PDF

CBSE Class 11 Chemistry VBQs Basic Concepts of Chemistry. Value based questions are very important and always form part of examinations and class tests. Students are requested to download the VBQs and practice them to get better marks in examinations. 




Question 1 Two friends Riya and Pooja were discussing that which is better for expressing the concentration of a solution: Molality or Molarity ?Pooja told Riya that Molality is considered better for expressing the concentration as compared to Molarity and explained the reason as well.

(i) What would be the explanation of Pooja?

(ii) What are the units of molarity & molality?

(iii) What is the difference between molality & molarity?

Question 2. Mohan learnt the term mol in his chemistry class. He discussed the term mol with her elder sister Anshika. Anshika explained about and then Mohan got satisfied.

(i) What was the probable answer given by Anshika ?

(ii) What for term mol stands?

(iii) What values are associated with Anshika?

Question 3. Radhika ,Supriya and Hema were asked by the PGT chemistry to find the mass of a metal piece independently one by one using the same balance and same weight box. Each student was asked to take three observations. The students reported their result as shown in the following table: 


If the actual mass of the metal piece is 1.325g and the permitted uncertainty in the measurement is 0.001g, answer the following questions:

(i) Whose measurement is both accurate and precise? Justify your answer.

(ii) Whose measurement is precise and not accurate Justify your answer?

(iii) Whose measurements are neither accurate nor precise? Justify your answer.

(iv)  Mention the associated value or values with these observations.

 Please click the link below to download CBSE Class 11 Chemistry VBQs Basic Concepts of Chemistry.


Click on the text For more study material for Chemistry please click here - Chemistry

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

CBSE class 10, 12 board exam important information

CBSE class 10, 12 board exam: important information to prevent problems for students : The Central Board of Secondary Education (CBSE) has issued an advisory for the students of class 10 and class 12 board. As per the notice, the registration of students appearing in...

Do you think getting a tutor to help your child is a good idea

Yes, getting a tutor is a good idea to help your child. There are many reasons why parents choose tutors for their children. Some parents feel unable to help their children with homework and some don’t have enough time for this. Some think that their children are more...

CBSE Board Practical Exam 2020

CBSE Board Practical Exam 2020: Important changes in date sheet, internal/external examiners and more Are you doing preparations for class 10 and 12 CBSE board exams? If yes, then you have to see what major changes CBSE has brought in the CBSE date sheet for class 10...

5 Signs Why Your Child Needs a Tutor

Is your child struggling at school? Are they leaving assignments incomplete? When it comes to education every student is different. Some children do well with the help of the teacher at school and an active parent while others need extra help. When children have...

Class 10 and 12 exam 2020 application process for private candidates

CBSE 10th, 12th exam 2020 application process for private candidates begins to apply by 30th Sept at CBSE Board Exam 2020 application begins: The Central Board of Secondary Education (CBSE) has officially started the online application process for the...

Vidya Daan by CBSE

CBSE has launched a new initiative to provide free of cost quality education to students in rural areas. CBSE has named that initiative “Vidya Daan”. Lot of reforms are been continuously done by CBSE so that the teachers can offer a personalized experience to students...

Studies Today