for student presently in Class 10 PAPER–2 - FIITJEE Pune

1 FIITJEE Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi - 110016. Ph: 011-46106000, 26569493, Fax: 011-26513942. website: [ FIITJEE Talent Reward Exam-2014 for student presently in Class 10 Time: 3 Hours Maximum Marks: 207 Instructions: Note: Please check this Question Paper contains all 63 questions in serial order. If not so, exchange with the correct Question Paper. Registration Number : _____ Name of the Candidate : _____ Answer Sheet No. : _____ Test Centre : _____ Caution: Question Paper CODE as given above MUST be correctly marked in the answer OMR sheet before attempting the paper. Wrong CODE or no CODE will give wrong results.]

2 1. This Question paper consists of 2 sections. All questions will be multiple choice single correct out of four choices with marking scheme in table below: Marking Scheme for each question Section Subject Question no. correct answer wrong answer Physics Q. 1 to 8 +3 1 Chemistry Q. 9 to 16 +3 1 SECTION I Mathematics Q. 17 to 24 +3 1 Q. 25 to 34 +3 1 Physics Q. 35 to 37 +5 2 Q. 38 to 47 +3 1 Chemistry Q. 48 to 50 +5 2 Q. 51 to 60 +3 1 SECTION II Mathematics Q. 61 to 63 +5 2 2. Answers have to be marked on the OMR sheet. 3. The Question Paper contains blank spaces for your rough work. No additional sheets will be provided for rough work. 4. Blank papers, clip boards, log tables, slide rule, calculator, cellular phones, pagers and electronic devices, in any form, are not allowed.

3 5. Before attempting paper write your Registration Number, Name, Answer Sheet No. and Test Centre in the space provided at the bottom of this sheet. PAPER 2 FTRE-2014-PCM-X-Paper-2-(SAMPLE PAPER)-2 FIITJEE Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi - 110016. Ph: 011-46106000, 26569493, Fax: 011-26513942. website: [ SSeeccttiioonn--II PPhhyyssiiccss Comprehension Passage Comprising of 3 Questions (1 3) Straight Objective Type When electrical power is transmitted over large distances, it is economical to use a high voltage and low current to minimize the 2IR heating loss in the transmission lines. Transformers are useful for transmitting power over long distances because when the generator voltage is stepped up, the current in the transmission lines is reduced, thereby reducing 2IR losses.]

4 A generator produces 10 A (rms) of current at 400 V. the voltage is stepped up to 4500 V by an ideal transformer and transmitted a long distance through a power line of total resistance 30 . With the help of the comprehension given above, choose the most appropriate alternative to each of the following questions. 1. The percentage of power lost in the transmission line when the voltage is stepped up is : (A) 10% (B) 20% (C) (D) 2% 2. The percentage of power lost in the transmission line if the voltage were not stepped up is : (A) 100% (B) 90% (C) 75% (D) 50% 3. If the transmission line is cooled so that the resistance is reduced to and it carries a current of A, the power lost in the line is : (A) 5 W (B) 4 W (C) 8 W (D) 24 W Space for rough work FTRE-2014-PCM-X-Paper-2-(SAMPLE PAPER)-3 FIITJEE Ltd.

5 , FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi - 110016. Ph: 011-46106000, 26569493, Fax: 011-26513942. website: [ Comprehension Passage Comprising of 5 Questions (4 8) Straight Objective Type Based on the circuit shown, answer the following questions. Assume that all the resistances have value in ohm. 4. Equivalent resistance of circuit is (A)2 (B) 3 (C) 4 (D) 6 5. The current in wire AB is (A) 2A (B) 1A (C) 3A (D) 5A 6. The current I in the circuit is given by (A) 2A (B) 4A (C) 6A (D) 8A 7. The current I1 is given by (A) 1A (B) 1A2 (C) 1A4 (D) 1A8 8. The potential difference across the points AB is VAB. Then (A) VAB=4V (B) VAB=8V (C) VAB=6V (D) VAB=0 Space for rough work A B I I1 1 2 3 8 16 16 5 24 V FTRE-2014-PCM-X-Paper-2-(SAMPLE PAPER)-4 FIITJEE Ltd.]

6 , FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi - 110016. Ph: 011-46106000, 26569493, Fax: 011-26513942. website: [ CChheemmiissttrryy Comprehension Passage comprising of 3 Questions (9 11) Straight Objective Type The solubility of an ionic compound in water mainly depends on two factors. (i) Lattice energy and (ii) hydration energy. Both these factors oppose each other and the resultant of these guides the solubility of the compound in water. If lattice energy has greater value, the solubility is less. In case, hydration energy is more, then the compound is freely soluble in water. Answer the following question. 9. Compounds of alkaline earth metals are less soluble in water in comparison to alkali metals.]

7 This is due to (A) their higher ionization energy (B) their high lattice energy (C) their high hydration energy (D) their increased covalent nature 10. Which of the following is most soluble in water? (A) MgSO4 (B) CaSO4 (C) SrSO4 (D) BaSO4 11. BeF2 is soluble in water whereas fluorides of other alkaline earth metals are insoluble because of (A) ionic nature of BeF2 (B) covalent nature of BeF2 (C) greater hydration energy of Be+2 ion (D) greater lattice energy of Be+2 ion Space for rough work FTRE-2014-PCM-X-Paper-2-(SAMPLE PAPER)-5 FIITJEE Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi - 110016. Ph: 011-46106000, 26569493, Fax: 011-26513942. website: [ Comprehension Passage comprising of 5 Questions (12 16) Straight Objective Type Bleaching powder is a mixed salt of hydrochloric acid and hypochlorous acid.]

8 It has the formula, It is manufactured by the action of chlorine on dry slaked lime at 40oC. There is also a view that bleaching powder is a mixture of calcium hypochlorite and basic calcium chloride [Ca(OCl)2+CaCl2Ca(OH) ]. The amount of chlorine obtained from a sample of bleaching powder by the treatment with excess of dilute acids or CO2 is called available chlorine. A good sample of bleaching powder contains 35-38% of available chlorine. On long standing , it undergoes auto-oxidation and the amount of available chlorine decreases. The estimation of available chlorine is done volumetrically by (a) iodometric method or by (b) arsenite method.

9 In textile industry, the cotton cloth is mainly bleached with the help of bleaching powder. 12. Maximum percentage of available chlorine on the basis of formula is: (A) 35 (B) 40 (C) 45 (D) 49 13. The percentage of available chlorine in commercial samples of bleaching powder is usually between 33- 38%. The low value is due to: (A) incomplete reaction between slaked lime and Cl2 during its formation (B) impurities present in the original slaked lime (C) decomposition of bleaching powder when kept in air (D) all of the above 14. of bleaching powder when treated with acetic acid and excess of Kl liberated iodine which required 60mL of sodium thiosulphate solution.

10 The percentage of available chlorine in the sample is: (A) (B) (C) (D) 15. On long standing, the bleaching powder undergoes auto-oxidation. The products formed are: (A) calcium chloride only (B) calcium chlorate only (C) calcium chloride and calcium chlorate (D) calcium chloride and calcium chlorite 16. The chemical name of bleaching powder is: (A) calcium hypochlorite (B) calcium chlorohypochlorite (C) calcium chlorate (D) calcium perchlorate Space for rough work FTRE-2014-PCM-X-Paper-2-(SAMPLE PAPER)-6 FIITJEE Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi - 110016. Ph: 011-46106000, 26569493, Fax: 011-26513942. website: [ MMaatthheemmaattiiccss Comprehension Passage comprising of 3 Questions (17 19) Straight Objective Type If a polynomial equation of degree of n can be represented as nn 1n 2nn 1n 2P xa xa xax a x a0 and roots are.]