NCERT Class 12 Chemistry
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New answer posted
a week agoContributor-Level 10
After the 2023-24 revised CBSE syllabus, many chapters have been removed, and in some chapters syllabus is reduced. As per the latest CBSE exam pattern 2025-26, the Chapter 1 Solutions will be asked for 5-7 marks in the Class 12 Chemistry CBSE board exams.
For other competitive exams, the Solutions chapter has a medium weightage in the NEET exam. In the NEET exam, 1-2 questions are frequently asked based on the concept of moderate-level numerical.
Physical Chemistry holds over 30% weightage in the chemistry section in the JEE Mains exam. The solutions chapter is considered a part of physical chemistry. You can expect 1 question fo
New answer posted
a week agoBeginner-Level 5
NCERT offers the foundation for every class 12 student. CBSE board exam questions are primarily based on the NCERT exercise, Examples and conceptual explanation.
There are various benefits of using NCERT Solutions.
- Specially for CBSE Board students, these NCERT Solutions are the best resource to prepare for the boards.
- These NCERT Solutions include step-wise descriptive answer approach that will help you write good answers.
- These solutions also help you understand problem-solving and how to approach a specific type of conceptual or numerical problem.
- If you are preparing for the JEE or NEEt exam, these solutions can be your first deci
New answer posted
a week agoBeginner-Level 5
Shiksha focuses on completely fulfilling the needs of CBSE class 12 board students. We provide NCERT Solutions for classes 11th and 12th in class for physics, chemistry and mathematics.
Here are the key reasons why you should use Shiksha's NCERT Solutions for the Solution Chapter:
- Complete coverage of NCERT Exercise, including MCQs, very short, short and long answer type questions.
- Step-by-step solutions according to the CBSE board exam needs.
- Intext question and answer with a free downloadable PDF
- complete study material for the chapter
- NCERT Chapter 1 Solutions Notes
- Solutions Quick Revision Notes
- Important Questions for Solution
New answer posted
a month agoContributor-Level 7
There are various types of enzymes, including lyases, ligases, isomerases, hydrolases, oxidoreductases, etc. To know about the types of enzymes in detail, refer to the article.
New answer posted
a month agoContributor-Level 7
Enzymes found in human bodies are
Lipases: They remove the fats in the gut.
Amylase: It is present in the saliva. The role of amylase is to break down carbohydrates.
Maltase: These enzymes are found in the small intestine. It breaks down the sugar maltose into glucose.
Trypsin: These enzymes are present in the small intestine. The function of trypsin is to break proteins into amino acids.
Lactase: The function of lactase is to break down lactose into simpler sugars (glucose and galactose). Lactose is the sugar that is found in dairy products.
New answer posted
a month agoContributor-Level 7
We can define enzymes as biocatalysts. It is important in biological processes like digestion, metabolism, and the synthesis of cellular components. If enzymes stop their functions, then the body can not generate enough proteins, which is important for survival. The examples of enzymes are lactase and amylase.
New answer posted
a month agoContributor-Level 7
Foods that contains nucleic acids are animal products such as meat, eggs, fish and few plant-based sources are legumes, spinach, mushrooms, yeast and cereals. Adding these foods in the diet will support the body's nucleic acid pool, which is important for cellular function.
New answer posted
a month agoContributor-Level 7
DNA and RNA both are the types of nucleic acids.
DNA (Deoxyribonucleic acid) store the genetic information.
RNA (Ribonucleic acid) helps in protein synthesis. It carry and translates the genetic codes.
New answer posted
a month agoContributor-Level 7
We know that nucleic acids are biomolecules which is responsible for carrying the genetic information in living organisms. Nucleic acids have various properties, including physical, chemical and biological properties.
Physical Properties
Nucleic acids are macromolecular in nature because they have a high molecular weight. They are water-soluble but insoluble in alcohol. Also, nucleic acids can absorb ultraviolet light at 260 nm because they have nitrogenous bases.
Chemical Properties
- Acidic in nature
- Hydrolysis
- Base pairing
- Negative charging
Biological Properties
- Stores and transfers genetic information
- The genetic code of every organism i
New answer posted
a month agoContributor-Level 7
Hormones present in the human body are:
- Thyrotropin-releasing hormone (TRH)
Dopamine (prolactin-inhibiting hormones)
Gonadotropin-releasing hormone (GnRH)
Adrenal Glands
Androgens
Estrogen
Inhibin
Testosterone
Gastrin
Melatonin
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