SOF NSO Sample Paper 2023 Class 11

SAMPLE PAPER SYLLABUS 2022-23 CLASS Total Questions : 50 11 Time : 1 hr. PATTERN & MARKING SCHEME (3) Mathematics Section (1) Physics & Chemistry (2) Achievers Section or Biology SOF NATIONAL SCIENCE OLYMPIAD No. of Questions 25 5 20 Marks per Ques. 1 3 1 SYLLABUS Section – 1 : Physics : Units and Measurements, Mechanics, Properties of Matter, Heat and Thermodynamics, Oscillations, Waves. Chemistry : Some Basic Concepts of Chemistry, Structure of Atom, Classification of Elements and Periodicity in Properties, Chemical Bonding and Molecular Structure, States of Matter, Thermodynamics, Equilibrium, Redox Reactions, Hydrogen, The s-Block Elements, The p-Block Elements (Groups 13 and 14), Organic Chemistry - Some Basic Principles and Techniques, Hydrocarbons, Environmental Chemistry. Section – 2 : Higher Order Thinking Questions - Syllabus as per Section – 1. Section – 3 : Sets, Relations and Functions, Principle of Mathematical Induction, Logarithms, Complex Numbers & Quadratic Equations, Linear Inequations, Sequences and Series, Trigonometry, Straight Lines, Conic Sections, Permutations and Combinations, Binomial Theorem, Statistics, Mathematical Reasoning, Limits and Derivatives, Probability, Introduction to 3-D Geometry. OR Section – 3 : Diversity in the Living World, Structural Organisation in Plants and Animals, Cell : Structure and Functions, Plant Physiology, Human Physiology. PHYSICS AND CHEMISTRY 1. Three particles P, Q and R are at rest at the resonant length is reduced to 30 cm. The relative vertices of an equilateral triangle of side s. Each of density in which weight suspended is the particles starts moving with constant speed v. (A) 16/9 (B) 16/7 P is moving along PQ, Q along QR and R along RP. (C) 16/5 (D) 16/3 The particles will meet each other at time t given by 4. Given that 10 g of a dibasic acid (mol. mass =100) P are present in 500 mL of the solution. The density of the solution is 1.02 g mL–1. Match the entries of column I with appropriate entries of column II and choose the correct option. Q R Column I Column II (A) s (B) 3s a. Normality of the solution p. 0.98 v v b. Molality of the solution q. 0.996 (C) 3s (D) 2s 2v 3v c. Mole fraction of solvent r. 0.2 2. A boy throws a table tennis ball of mass 20 g d. Mass fraction of solvent s. 0.4 upwards with a velocity of u0 = 10 m/s at an angle (A) a-p; b-q; c-r; d-s q0 with the vertical. The wind imparts a horizontal (B) a-s; b-r; c-q; d-p force of 0.08 N, so that the ball returns to the (C) a-s; b-r; c-p; d-q (D) a-r; b-s; c-q; d-p starting point. Then, the angle q0 must be such that, tan q0 is 5. Maximum enol content is observed in (A) 0.2 (B) 0.4 (A) CH3COCH2COOC2H5 (C) 2.5 (D) 1.2 (B) 3. A weight is attached to the free end of a sonometer wire. It gives resonance at a length 40 cm when it is (C) CH3COCH2COCH3 resonanced with a tuning fork of frequency 512 Hz. The weight is then immersed wholly in water, the (D) CH3COCH3 Sample Paper | Class-11 | 1

6. In the reaction, (A) 1.0 mole of H2O is produced 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(l) (B) 2.0 moles of NO will be produced when 1 mole of ammonia and 1 mole of O2 are (C) All the oxygen will be consumed made to react to completion (D) All the ammonia will be consumed. ACHIEVERS SECTION 7. A bob is attached to one end of a string and other (A) 1 : 1 (B) 1 : 2 end of which is fixed at peg A. The bob is taken to a position where string makes an angle of 30° with the (C) 1 : 2 (D) 1 : 4 horizontal. On the circular path of the bob in vertical 8. A natural gas was containing mixture of methane plane, there is peg B at a symmetrical position with respect to the initial position of bob as shown in and ethane only. On complete combustion the figure. If vc and va be the minimum speeds in of 10 litres of gas at STP, the heat evolved clockwise and anticlockwise directions respectively, w a s 4 7 4 . 6 k J . A s s u m i n g DH combC H 4(g) given to bob in order to hit the peg B, then ratio = –894 kJ/mol and DHcombC2H6(g) = –1500 kJ/mol, vc : va is equal to the percentage of CH4 and C2H6 will be respectively Peg B Bob (A) 30%, 70% 30° 30° (B) 22%, 78% Peg A (C) 72%, 28% (D) 70%, 30%. MATHEMATICS 9. Out of 800 boys in a school, 224 played Cricket, 10. The value of 240 played Hockey and 336 played Basketball. Of π 2π 3π 4π 5π 6π 7π the total, 64 played both Basketball and Hockey; 80 cos cos cos cos cos cos cos is 15 15 15 15 15 15 15 played Cricket and Basketball; 40 played Cricket and Hockey and 24 played all the three games. 1 1 (A) (B) The number of boys who did not play any game is 164 138 _______. 1 1 (A) 128 (B) 216 (C) (D) 60 128 (C) 240 (D) 160 BIOLOGY 9. Read the given statements and select the correct 10. Refer to the given graph. option. Statement 1 : Chloroplasts and mitochondria are semi-autonomous bodies. Statement 2 : Chloroplasts and mitochondria have their own DNA and protein synthesising machinery. (A) Both statements 1 and 2 are correct and statement 2 is the correct explanation of p statement 1. Under normal conditions, how much oxygen is (B) Both statements 1 and 2 are correct but transported to the tissues by blood on passing statement 2 is not the correct explanation of from lungs to tissues? statement 1. (A) 15 mL of O2/100 mL of blood (C) Statement 1 is correct and statement 2 is (B) 10 mL of O2/100 mL of blood incorrect. (C) 5 mL of O2/ 100 mL of blood (D) Both statements 1 and 2 are incorrect. (D) 20 mL of O2/ 100 mL of blood ANSWERS (PHYSICS AND CHEMISTRY) 1. (D) 2. (B) 3. (B) 4. (B) 5. (C) 6. (C) 7. (C) 8. (C) (MATHEMATICS) 9. (D) 10. (D) (BIOLOGY) 9. (A) 10. (C) 2 | Sample Paper | Class-11