SOF ISO Sample Paper 2024 Class 10

LEBRAT CE F IN SO G SAMPLE PAPER SYLLABUS 2023-24 CLASS Total Questions : 50 Section PATTERN & MARKING SCHEME (1) Logical Reasoning (2) Science (3) Achievers Section Time : 1 hr. 10 No. of Questions 10 35 5 SOF NATIONAL SCIENCE OLYMPIAD Marks per Ques. 1 1 3 SYLLABUS Section – 1 : Verbal and Non-Verbal Reasoning. Section – 2 : Chemical Reactions and Equations, Acids, Bases and Salts, Metals and Non-metals, Carbon and Its Compounds, Periodic Classification of Elements, Life Processes, Control and Coordination, Reproduction in Organisms, Heredity and Evolution, Light-Reflection and Refraction, Human Eye and Colourful World, Electricity, Magnetic Effects of Electric Current, Sources of Energy, Our Environment and Its Management. Section – 3 : Higher Order Thinking Questions - Syllabus as per Section – 2. LOGICAL REASONING 1. In a certain code language, ‘si po re’ means ‘book is 3. Which of the following figures will complete the given thick’, ‘ti ma re’ means ‘bag is heavy’, ‘ka si’ means figure matrix? ‘interesting book’ and ‘de ti’ means ‘that bag’. Which of the following means ‘that is interesting’ in that code language? (A) ka de re (B) ti po ka (C) de si re (D) ka re ma 2. In the given figure, 1 ? 3 rectangle, square, circle 4 8 2 and triangle represents the 5 7 9 6 10 regions of wheat, gram, (A) (B) 11 maize and rice cultivation respectively. Which area is cultivated by rice and maize only? (C) (D) (A) 9 (B) 8 (C) 2 (D) 7 SCIENCE 4. The given figure shows the phenomenon of 1 2 3 4 5 6 recombination of the spectrum of white light using (A) R V B Y I O two prisms. (B) R V Y B O I White light 1 3 5 (C) V R B Y I O White (D) V R Y B O I light 2 5. A constant current of 3.0 A flows counter clockwise 6 4 in the circular coil P as shown in figure. If V, I, B, Y, O and R denote violet, indigo, blue, yellow, orange and red colours respectively, then which of the following options correctly lists the colour of marked rays? P Q Sample Paper | Class-10 | 1

What is the direction of the induced current in the Metal X coil Q on the right? (A) Clockwise (B) Counter clockwise (C) Out of the page Silver nitrate Zinc nitrate (D) There is no induced current solution solution A greyish metallic deposit was found on both strips. 6. Which of the following statements is true with respect Which of the following could be metal X? to diamond ? (A) Cu (B) Mg (A) The carbon atoms are connected to each (C) Pb (D) Fe other by metallic bonds. 8. Identify the given developmental stage of human (B) In the diamond crystal, the carbon atoms are embryo and select the correct option regarding it. very loosely packed. (C) Each carbon atom in the crystal is surrounded by four other carbon atoms forming a rigid 3-D structure. (D) Diamond can be synthesised by subjecting Developmental Site of pure carbon to very low pressure and stage implantation temperature. (A) Blastocyst Uterine wall (B) Morula Uterine wall 7. Strips of metal X were dipped into two different (C) Blastula Mid part of Fallopian tube solutions as shown : (D) Gastrula Mid part of Fallopian tube ACHIEVERS SECTION 9. Which of the following statements about the given Ovulation occurs 15 reaction are not correct? Fe2O3 + 3CO → 2Fe + 3CO2 10 Level in blood I. Fe2O3 is getting oxidised to Fe. 5 P II. Fe2O3 is acting as a reducing agent. Q 0 III. CO is acting as a reducing agent. 5 10 15 20 25 28 Days IV. CO is getting reduced to CO2. (A) The uterine lining might not be sufficiently (A) III only (B) I, II and IV only stable to support an implanted embryo. (C) II and IV only (D) I and III only (B) Levels of the hormone represented by graph 10. The given graph shows the hormonal changes during P would be higher than normal. a normal menstrual cycle. What would be a likely (C) Fertilization of ovum would fail to occur. consequence if the hormone represented by graph (D) There would be no significant effect since the Q is lacking in an adult female? functions of the hormones overlap. SPACE FOR ROUGH WORK ANSWERS NSO – 1. (A) 2. (C) 3. (B) 4. (B) 5. (D) 6. (C) 7. (B) 8. (A) 9. (B) 10. (A) 2 | Sample Paper | Class-10