NCERT Solutions for Class 11 Chemistry Chapter 3 Classification of Elements and Periodicity in Properties NCERT TEXTBOOK QUESTIONS SOLVED Question 1. What is the basic theme of organisation in the periodic table? Answer: The basic theme of organisation of elements in the periodic table is to simplify and systematize the study of the properties of…
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NCERT Solutions for Class 11 Chemistry Chapter 2 Structure of Atom Question 1. (i) Calculate the number of electrons which will together weigh one gram. (ii) Calculate the mass and charge of one mole of electrons. Answer: (i) Mass of an electron = 9.1 × 10-28 g 9.1 × 10-28 g is the mass…
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NCERT Solutions for Class 11 Chemistry Chapter 1 Some basic Concepts of Chemistry NCERT TEXTBOOK QUESTIONS SOLVED Question 1. Calculate the molecular mass of the following: (i) H20(ii) C02(iii) CH4 Answer: (i) Molecular mass of H2O = 2(1.008 amu) + 16.00 amu=18.016 amu (ii) Molecular mass of CO2= 12.01 amu + 2 x 16.00 amu = 44.01 amu (iii) Molecular…
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NCERT Solutions for Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry Chapter 2 Structure of The Atom Chapter 3 Classification of Elements and Periodicity in Properties Chapter 4 Chemical Bonding and Molecular Structure Chapter 5 States of Matter Chapter 6 Thermodynamics Chapter 7 Equilibrium Chapter 8 Redox Reactions Chapter 9 Hydrogen Chapter 10…
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NCERT Solutions for Class 11 Physics Chapter 15 Waves QUESTIONS FROM TEXTBOOK Question 15. 1. A string of mass 2.50 kg is under a tension of 200 N. The length of the stretched string is 20.0 m. If the transverse jerk is struck at one end of the string, how long does the disturbance…
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NCERT Solutions for Class 11 Physics Chapter 14 Oscillations QUESTIONS FROM TEXTBOOK 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) A freely suspended bar magnet displaced from its N-S direction and released.…
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NCERT Solutions for Class 11 Physics Chapter 13 Kinetic Theory QUESTIONS FROM TEXTBOOK 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 be 3 A. Answer: Diameter of an oxygen molecule, d = 3 A = 3…
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NCERT Solutions for Class 11 Physics Chapter 12 Thermodynamics Topics and Subtopics in NCERT Solutions for Class 11 Physics Chapter 12 Thermodynamics: QUESTIONS FROM TEXTBOOK Question 12. 1 A geyser heats water flowing at the rate of 3.0 litres per minute from 2 7°C to 77°C. If the geyser operates on a gas burner, what…
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NCERT Solutions for Class 11 Physics Chapter 11 Thermal Properties of matter Chapter 11 Thermal Properties of matter: QUESTIONS FROM TEXTBOOK Question 11. 1. The triple points of neon and carbon dioxide are 24.57 K and 216.55 K respectively. Express these temperatures on the Celsius and Fahrenheit scales. Answer: The relation between kelvin scale and…
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NCERT Solutions for Class 11 Physics Chapter 10 Mechanical Properties of Fluids Topics and Subtopics in NCERT Solutions for Class 11 Physics Chapter 10 Mechanical Properties Of Fluids: QUESTIONS FROM TEXTBOOK Question 10. 1. Explain why (a) The blood pressure in humans is greater at the feet than at the brain. (b) Atmospheric pressure at…
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