NCERT Solutions For Class 11 Biology Animal Kingdom NCRT TEXTBOOK QUESTIONS SOLVED 1.What are the difficulties that you would face in classification of animals, if common fundamental features are not taken into account? soln. The common fundamental features used for classifying animals include body symmetry, arrangement of cells, nature of coelom, level of organisation.…
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NCERT Solutions For Class 11 Biology Plant Kingdom NCERT TEXTBOOK QUESTIONS SOLVED 1.What is the basis of classification of algae? soln. Fritsch (1935), has classified algae considering phylogeny, affinities and inter-relationships of various forms. He classified algae mainly on the basis of the characters like structure of plant body, nature of the pigments, reserve…
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NCERT Solutions For Class 11 Biology Biological Classification NCRT TEXT BOOK QUESTIONS SOLVED 1.Discuss how classification systems have undergone several changes over a period of time? Soln. Biological classification is the scientific procedure of arranging organisms in a hierarchical series of groups and sub-groups on the basis of their similarities and dissimilarities. Scientists have…
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NCERT Solutions For Class 11 Biology Chapter 1 The Living World NCERT TEXTBOOK QUESTIONS SOLVED 1. Why are living organisms classified? Soln. Living organisms are classified because of the following reasons: (i) Easy identification. (ii)Study of organisms of other places. (iii)Study of fossils (iv)Grouping helps in study of all types of organisms while it…
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NCERT Solutions for Class 11 Biology Chapter 1 The Living World Chapter 2 Biological Classification Chapter 3 Plant Kingdom Chapter 4 Animal Kingdom Chapter 5 Morphology of Flowering Plants Chapter 6 Anatomy of Flowering Plants Chapter 7 Structural Organisation in Animals Chapter 8 Cell The Unit of Life Chapter 9 Biomolecules Chapter 10 Cell Cycle…
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NCERT Solutions for Class 11 Chemistry Chapter 14 Environmental Chemistry NCERT Class 11 Chemistry Texbook Chapter 14 Solved Questions Question 1. Define environmental chemistry? Answer: Environmental Chemistry is the branch of science which deals with the chemical changes in the environment. It includes our surroundings such as air, water, soil, forest etc. Question 2.…
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NCERT Solutions for Class 11 Chemistry Chapter 13 Hydrocarbons NCERT Class 11 Chemistry Chapter 13 Questions Solved Question 1. How do you account for the formation of ethane during chlorination of methane? Answer: Chlorination of methane is a free radical reaction which occurs by the following mechanism: From the above mechanism, it is evident that…
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NCERT Solutions for Class 11th Chemistry Chapter 12 Organic Chemistry Some Basic Principles and Techniques NCERT TEXTBOOK QUESTIONS SOLVED Question 1. What are hybridisation states of each carbon atom in the following compounds? CH2=C=O, CH3CH=CH2, (CH3)2CO, CH2=CHCN, C6H6. Answer: Question 2. Indicate the a- and n-bonds in the following molecules: C6H6 , C6H12, CH2Cl2,…
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NCERT Solutions for Class 11 Chemistry 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 Tl Common oxidation states are +1 and +3. The stability of +3 oxidation…
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NCERT Solutions for Class 11 Chemistry 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: Alkali metals have low ionization enthalpies. Alkali metals are highly electropositive in nature. Alkali metals exhibit +1…
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