Chapter 11: The p-Block Elements
NCERT Class 11 Chemistry Textbook Solved Questions Question 1. Discuss the pattern of variation in the oxidation states of(i) B to Tl (ii) C to Pb.Answer: (i) B to TlCommon oxidation states are +1 and +3. The stability…
Chapter 11: Biotechnology Principles And Processes
1. Can you list 10 recombinant proteins which are used in medical practice? Find out where they are used as therapeutics (use the internet).Ans: (i) Human insulin – Diabetes(ii) Human growth hormone – Dwarfism cure(iii) Blood clotting factor…
Chapter 11: Transport in Plants
1.What are the factors affecting the rate of diffusion?Solution. Factors affecting the rate of diffusion are : 2.What are porins? What role do they play in diffusion?Solution: The porins are proteins that form huge pores in the outer membranes…
Chapter 14: Oscillations
NCERT Solutions for Class 11 Physics Chapter 14 Oscillations Question 14. 1. Which of the following examples represent periodic motion?(a) A swimmer completing one (return) trip from one bank of a river to the other and back.(b)…
Chapter 10: The s-Block Elements
NCERT Class 11 Chemistry Textbook Solved Questions Question 1. What are the common physical and chemical features of alkali metals?Answer: Physical properties of alkali metals: Chemical properties of alkali metals: Question 2. Discuss the general characteristics and gradation…
Chapter 10: Cell Cycle and Cell Division
NCRT TEXTBOOK QUESTIONS SOLVED 1. What is the average cell cycle span for a mammalian cell?Solution: 24 hours. 2. Distinguish cytokinesis from karyokinesis.Solution: Differences between cytokinesis and karyokinesis are: 3. Describe the events taking place during the interphase.Solution: The interphase,…
Chapter 10: Microbes in Human Welfare
1. Bacteria cannot be seen with the naked eyes, but these can be seen with the help of a microscope. If you have to carry a sample from your home to your biology laboratory to demonstrate the…
Chapter 13: Kinetic Theory
NCERT Solutions for Class 11 Physics Chapter 13 Kinetic Theory Question 13. 1. Estimate the fraction of molecular volume to the actual volume occupied by oxygen gas at STP.’ Take the diameter of an oxygen molecule to…
Chapter 9: Hydrogen
Question 1. Justify the position of hydrogen in the periodic table on the basis of its electronic configuration.Answer: Hydrogen has been placed at the top of the alkali metal in group, but it is not a member of…
Chapter 9: Strategies for Enhancement in Food Production
1. Explain in brief the role of animal husbandry in human welfare.Ans: Animal husbandry deals with the caring, feeding and management of domesticated animals. It includes poultry, farming and fisheries.These animals are very useful for human beings…
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