CBSE 12th
Get insights from 39.2k questions on CBSE 12th, answered by students, alumni, and experts. You may also ask and answer any question you like about CBSE 12th
Follow Ask QuestionQuestions
Discussions
Active Users
Followers
New answer posted
a year agoBeginner-Level 5
Several physical properties shows attributes due the presence of halogen atoms, students can check few notable and important changes below;
- Boiling Point Increases with increasing molecular mass and van there Waals forces.
- Halogen-containing compounds are denser than hydrocarbons.
- Insoluble in water (due to non-polar nature) but soluble in organic solvents.
New answer posted
a year agoBeginner-Level 5
Haloalkenes are organic compound in which halogen atoms are bonded with carbon atom with C-X bond. There are several chemical reactions which are really important for the CBSE and other exam perspective. Students cna check below;
- Nucleophilic Substitution Reactions
- Elimination Reactions
- Reaction with Metals
- Wurtz Reaction
- Grignard Reagent Formation
New answer posted
a year agoBeginner-Level 5
Student must know that haloarenes are important organic compounds, for everyday chemistry and also to fetch marks in their exams. Students must understand and memorise few very important reaction of haloarens which can come handy in the exam hall. here are a few reactions;
- Electrophilic Substitution Reactions
- Nucleophilic Substitution Reaction
- Wurtz-Fittig Reaction
- Fittig Reaction
Students can also check the NCERT solutions for the ch 6 haloalkenes and haloarenes provided by our experts at Shiksha for better understanding.
New answer posted
a year agoBeginner-Level 5
NCERT solutions for Class 12 Haloalkenes and Haloarenes is the most importnat and powerful resource for studenst to prepare for CBSE board exams and competitive exams like JEE and NEET. Studets can use the Class 12 Haloalkenes and Haloarenes solutions in many ways from note to practice. NCERT Textbooks are complete package of preparation.
Students cna use the NCERT Textbooks to understand the minute details of the theroy along with important concepts. NCERT Solutions helps with the usage of the knowledge, practice problem solving and revising the concepts in minimal time. Students can make notes for quick recap of the chapter with
New answer posted
a year agoBeginner-Level 5
Haloalkanes and haloarenes are organic compounds containing halogen atoms (F, Cl, Br, I) attached to an alkyl or aryl group, respectively. Students must learn physical properties, chemical properties, bond types, and their reaction with different elements, metals and compounds. We have provided the NCERT Solutions for Class 12 Chemistry Haloalkanes and Haloarenes so that students can use the solutions to understand the fundamentals and get good score in the exams. Chemistry Class 12 Haloalkaes and haloarenes is asked for 6 marks in the board exams, student should study the chapter in detail.
New answer posted
a year agoBeginner-Level 5
Yes, NCERT Solutions for Class 12 Chemistry Haloalkanes and Haloarenes is very important for students to get good understanding of fundamnetals and strong foundation. Students of CBSE and other state board exams must use Class 12 Haloalkanes and haloarenes NCERT Solutions while practicing problems and revising concepts. as per CBSE syllabus 2024 haloalkanes and haloarenes will have weightage of 6 marks, which shows the importance of the topic.
We have prepared NCERT Solutions for all chapters in class 12th for all Science stream subjects. Students can access and also download NCERT Solution Class 12 Chemistry Haloalkanes and Haloarenes
New answer posted
a year agoContributor-Level 9
Indian B.Pharma college admission through Class 12th grades exists while the total tuition cost stays under Rs 4 lakh. The Government Colleges of Pharmacy across different states as well as Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR) have fees between Rs 1-2 Lacs and Jamia Hamdard (self-financed seats) charge fees within the range of Rs 3-4 lakh. Many state universities and private institutes like Guru Gobind Singh Indraprastha University, Rajasthan University of Health Sciences, and Madras Medical College also offer affordable pharmacy courses. Students who satisfy 50% marks in PCB/PCM are eligible for admission w
New answer posted
a year agoContributor-Level 9
The combination of a JEE Mains rank at position 7,13,039 and 76% marks in the 12th board makes admissions through UPTAC counseling into Government Funded Technical Institutes (GFTIs) extremely difficult in 2024. The admission criteria at GFTIs requires candidates to possess excellent ranks because the cutoff standards tend to be high so most vacancies go to students who achieve better rankings. Most GFTIs maintain closing ranks between 2,00,000 and 3,00,000 for their different branch options in years past. The admission system of private engineering colleges under UPTAC depends on both JEE Mains results and your board examination marks
New answer posted
a year agoBeginner-Level 5
Oxidation state of a particular element depends on the bond/ bonding process in the compound. Actinoids (5f series) have poorly shielded 5f orbitals, which can participate in bonding, while lanthanoids (4f series) have well-shielded 4f orbitals, leading to a stable +3 oxidation state. This is the reason why sctinoids show a greater range of oxidation state. Students can study d and f-block elements using NCERT Solutions provided by our experts.
New answer posted
a year agoBeginner-Level 5
When we move from left to right in the periodic table in Lanthanoid series ( La to Lu), a gradual decrease in atomic and ionic size of lanthanoids is experienced which is known as Lanthanoid contraction. Lanthanoid contraction happens due to poor shielding by 4f electrons, causing stronger nuclear attraction which simaltenaously increases effective nuclear charge, pulling electrons closer resulting in contraction of atom. Students can check more such questions in NCERT Class 12 Chemistry solutions provided by our experts in shiksha.
Taking an Exam? Selecting a College?
Get authentic answers from experts, students and alumni that you won't find anywhere else
Sign Up on ShikshaOn Shiksha, get access to
- 66k Colleges
- 1.2k Exams
- 688k Reviews
- 1850k Answers