CBSE 12th

Yes, admissions into BTech courses at JNNIE Chennai are based on merit basis, and the minimum scoring required is 55% in the 12^th standard in PCM stream. Students desirous of being admitted to JNN Institute of Engineering BTech courses, and having above 55% scoring at the 12^th level may visit the admissions portal of the institute and begin the registration process. Candidates may also note that Engineering aspirants are required to go through TNEA counselling before being admitted.

Students can find the difference between aldehydes and ketones with the help of some chemical reactions. Aldehydes can be distinguished from ketones using tests like Tollens' test and Fehling's test. Aldehydes reduce Tollens' reagent to produce a silver mirror and Fehling's solution to yield a red precipitate, whereas ketones do not react in these tests.

Name reactions are always feverouites of the examinaers. That's why Students are so eager to know and learn name chemical reactions of this chapter. Hers's few important reactions of this chapters below;

• Aldol Condensation: A reaction where two aldehyde or ketone molecules combine to form a? -hydroxy aldehyde or ketone.

• Cannizzaro Reaction: A reaction where non-enolizable aldehydes undergo disproportionation in the presence of a strong base to yield a primary alcohol and a carboxylic acid.

• Wolff-Kishner Reduction: A method to reduce carbonyl compounds to alkanes using hydrazine and a strong base.

Students studying class 12 chemistry must have clear understanding of the basic knowledge. Students must be aware of physical properties of these compunds. Aldehydes, ketones, and carboxylic acids generally have higher boiling points than hydrocarbons of similar molecular weight due to dipole-dipole interactions and hydrogen bonding (especially in carboxylic acids). Lower members are soluble in water, but solubility decreases with increasing molecular weight.

Students preparing for the CBSE Board exams must know important topics and type of questions asked from this chapter. Knowing the weightge of Class 12 chemistry chapter 7 alcohol phenol and ether in class 12 board exams helps understanding the importance of the chapter. The Class 12 Chapter 7 alcohol phenol and ether is asked for 6-7 marks in most of the class 12 board exams in india. Students can use NCERT Solutions for Class 12 chemistry chapter 7 alcohol phenol and ethers for studying and practice the questions of the chapter.

Class 12 Physics Ch 11 Dual Nature of Radiation and Matter is crucial because it consists of some of the important and fundamental topics and concepts related to modern physics, such as wave-particle duality, photoelectric effect, matter waves and de Broglie hypothesis. Having a good understating of these concepts which are often asked in CBSE Board exams, JEE, NEET, and other entrance exams are great to score well. Understanding these topics helps students have a good foundation in quantum mechanics and prepares them for higher studies in physics and engineering.

NCERT Solutions for Class 12 Physics Ch 9 Ray Optics consists of step-by-step explanations for all textbook questions, which maks it easier for students to comprehend difficult concepts and help develop problem-solving techniques. 

Class 12 Physics Ch 9 Ray Optics NCERT Solutions also help students clarify basic principles to improve conceptual clarity, and help students revise properly before exams. Since competitive exams like JEE and NEET include questions related to the Class 12 Physics NCERT Topics and concepts, these NCERT solutions PDFs are an excellent resource to thoroughly prepare for the exam.