CBSE Class 12 Chemistry Haloalkanes And Haloarenes VBQs

CBSE Class 12 Chemistry - Haloalkanes and haloarenes VBQs  Based on CBSE and NCERT guidelines. Value based questions are now being given in exams to promote morals and values in students, Students should read and understand the following VBQs to get better understanding and score good marks in exams

Chapter-10:

Haloalkanes and haloarenes

1. Ravi is a student of class VI fell down and got hurt Sam is a boy class XII immediately took him to the doctor and the doctor dressed the wound with the halogen compound.

(i) What is the name and formula of the compounds?

(ii) Write any one method of preparation.

(iii)What values can you find in Ravi?

Ans: 1 i.iodoform,CHI3

ii.CH3CH2OH+NaOI→CHI3+HCOOH

iii. Ravi is alert ,helping and kind in nature.

2. We all know that Freon 12 is used as refrigerant and it caused ozone layer depletion.

(i) What are the other gases cause ozone layer depletion?

(ii) How can you save your environment?

(iii)Give one more use of freons.

Ans:2 i.CO2

ii. by using public vehicle, and filtering fumes from factories

iii. used as propellant

3.Sam find a man putting his handkerchief on the face of a lady and she fainted. Sam immediately called for help and the other man ran away and took her to the hospital.

(i) What values can you find in Sam?

(ii)Can you give one use of chloroform?

(iii) Chloroform should be filled bottle up to the brim in brown bottle. Why?

Ans:3 i. Sam is alert ,helping and has general awareness.

ii. used as anaesthetic.

iii. Chloroform will react with oxygen and form poisonous gas phosgene. 

Please refer to the link below for CBSE Class 12 Chemistry - Haloalkanes and haloarenes VBQs

Tags: 

 


Click to View or Download pdf file
Click for more Chemistry Study Material

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

Online Teacher Training Course on Competency based Education in DIKSHA

Competency is a set of skills, abilities, knowledge that helps an individual perform a given task in real life. Every learning should go into the imbibing of these skills to lead a productive and joyful life. The NATIONAL EDUCATION POLICY-2020 calls for shift towards...

National Online Painting Championship

The National Mission for Clean Ganga, Ministry of Jal Shakti in collaboration with Kalantar Art Trust is organizing KALANTAR-2020: National Online Painting Championship with the aim to provide a platform to youth and school children to demonstrate their artistic skills...

NEP Transforming India Quiz

As a part of Shikshak Parv celebration, an online quiz competition on National Education Policy 2020 will be organized by the Ministry of Education, Govt. of India, from 5 th September to 25th September 2020 in order to create awareness about NEP among all stakeholders...

Conduct of the practical work during the lockdown

CBSE has advised schools to follow the Alternative Calendar developed by NCERT to continue education during the lockdown through alternative modes to achieve learning outcomes. Schools have reportedly started using these calendars and other prescribed pedagogical...

Keep your kids engaged during Lockdown

Kids are the Future of our Country! Outlines have changed and so should the formats of existence! It is the best time to teach our kids the pleasure of Self-Discipline, Self-Realization and Self-Control. To keep the future generation safe in such unpredictable...

TERI Green Olympiad 2020

Green Olympiad is a value driven project conducted by TERI (The Energy and Resources Institute) for school students annually since 1999. This Olympiad assesses the environment quotient of students and also enhances their understanding on issues related to sustainable...

×
Studies Today