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CBSE Class 9 Sample Paper SA-1 Sep 2014

IX Maths Sample Question paper SA-1 for 2014-2015-1 Download File SA-1 Class IX Maths Sample paper 2014-15-2 Download File SA 1 Class IX Science Sample Question paper 2014-15 Download File SA 1 Class IX Social Science Sample Question paper 2014-15 Download File SA 1 Sample paper Class IX Hindi 2014-15 Download File SA 1 Sample paper Class IX English 2014-15 Download File Searches related to CBSE Class 9 Sample Paper SA-1 Sep 2014 cbse sample paper for class 9 sa1 2013 cbse sample paper for class 9 sa1 science cbse sample paper for class 9 sa1 social science cbse sample paper for class 9 sa1 english cbse sample papers for class 9 sa1 maths cbse sample papers for class 9 sa1 hindi cbse sample papers for class 9 sa1 maths 2012 cbse sample papers for class 9 sa1 maths 2013-14

IX Original Paper with OTBA for 2014 CBSE Board

IX Maths Original Paper with OTBA 2014           Download File IX Science Original Paper with OTBA 2014         Download File IX Social Science Original  Paper with OTBA 2014           Download File IX Hindi Original  Paper with OTBA 2014           Download File IX English Original  Paper with OTBA 2014           Download File

Solved 10th Science Board Paper - 2014 code 31/2

1. Atomic no. of x = 12; Atomic No. of y = 16 2. The transfer of traits from parents to offspring is called heredity. 3. Paper and glass can be easily recycled but thrown in the dust bin. 4. This is because both the father and the mother contribute practically equal amounts of genetic material to the child during sexual reproduction in forming ztgote. 5. Object placed between pole and focus see in diagram: 6. Decomposer break-down the complex organic substances into simple inorganic substances. The natural replenishment of the soil also takes place by Decompose. 7. Watershed management is the study of the characteristics of a watershed. It helps to manage water quality, water supply, and drainage and rainwater flow. It also ensures sustainable maintenance planning of a watershed. Benefits of a watershed management system: Water quality is strictly maintained. Distribution of water is equal and sustainable. 8. The producers convert solar energy into chemical energy

Class IX original Board paper Science Summative -2 for 2013-14[code-7RL2FCZ]

Time: 3-3and1/2 hr _ Max mark: 100 [includes 10 marks based on Open Text Theme] Test held in School: Sadhana Devi Vidyapith, Samastipur - Punjabi Colony [By JSunil] 1 mark 1. As per the law of definite proportional carbon and oxygen combine in ratio 3: 8. Compute the mass of oxygen gas that would be required to react completely with 6 gm carbon. 2. A pore bearing organism like creature “A” belong to a phylum “B” of kingdom Animalia. 3. In which reason is soil erosion very difficult to revert. 2 marks 4. Explain, What is Organ specific manifestation? 5. A man drops a stone of mass 2 kg room the top of a building of height 15m when it reaches the ground, find its kinetic energy. 6. When an object is immersed in the fluid name the two forces acting on it. 3 marks 7. (a) The mass number of an element is 18. It contains 7 electrons. What is the number of proton? and neutron in it. (b) State the problem of atomic structure which was solved after the discovery

class 9 Mole concept [Atoms and Molecules]

Q. Find the gram molecular mass of water (H2O) Calculation: 2(H) = 2 x 1 = 2 . 1(O) = 1 x 16 = 16 ∴ Gram molecular mass of H2O= 18g Mole is defined as the amount of substance that contains as many specified elementary particles as the number of atoms in 12g of carbon-12 isotope. One mole is also defined as the amount of substance which contains Avogadro number (6.023 x 10^23) of particles. For eg. one mole of oxygen atoms represents 6.023 x 10^23 atoms of oxygen and 5 moles of oxygen atoms contain 5 x 6 . 0 2 3 x 10 ^23 a t oms of oxygen . Q. Calculate the number of aluminium ions present in 0.051 g of aluminium oxide. [Hint : The mass of an ion is same as that of an atom of the same element. Sol: 1 mole of Al2O3 contains aluminium ions = 2 × 6.022 × 10^23 = 12.044 × 10^23 Now, 102 g of Al2O3 has number of aluminium ions = 12.044 × 10^23 0.051 g of Al2O3 has number of aluminium ions = (12.044 ×1023 × 0.051)/102= 6.022 × 10^20 ions Q. How many atoms of oxygen are present i

Summative Assessment –II Solution of Mathematics class 10 CBSE Board 2014[Delhi] Set 1

Q1 The first three terms of an AP respectively are  3y – 1, 3y + 5 and 5y + 1. Then y equals: (A) –3 (B) 4 (C) 5 (D) 2 Solution: (C) 5 Q2 In Fig. 1, QR is a common tangent to the given circles, touching externally at the point T. The tangent at T meets QR at P. If PT = 3.8 cm, then the length of QR (in cm) is : (A) 3.8 (B) 7.6 (C) 5.7 (D) 1.9 Solution: (B) 7.6 Q3 In Fig. 2, PQ and PR are two tangents to a circle with centre O. If ∠QPR = 46°, then ∠QOR equals: (A) 67° (B) 134° (C) 44° (D) 46° Solution: (B) 134° Q4. A ladder makes an angle of 60° with the ground when placed against a wall. If the foot of the ladder is 2 m away from the wall, then the length of the ladder (in metres) is: (A) 43 (B) 43 (C) 22 (D) 4 Solution: (D) 4 Q5 If two different dice are rolled together, the probability of getting an even number on both dice, is: (A) 136 (B) 12 (C) 16 (D) 14 Solution: (D) 14 Q6 A number is selec

Code-30/3 Summative Assessment –II Solution Mathematics class 10 CBSE Board 2014

SECTION A All questions are similar in 30/2 set                             SECTION B All questions are similar in 30/2 set except Q.No. 14 14. Find the value of p so that p x (x-3)+9 = 0 has equal roots. SECTION C All questions are similar in 30/2 set except Q. No. 20,22,23,24 20. Construct a triangle with side 5 cm, 5.5 cm and 6.5 cm . Now construct another triangle, whose sides are 3/5 times the corresponding sides of given triangle. 22. The sum of first seven term of AP is 182. If 4th and 17th term are in ratio 1: 5 . Find AP 23.From the top of 60m high building , the angle of depression of the top and bottom of a tower are 45 deg. and 60 deg. respectively. Find the height of tower. 24.Find a point p on y axis which is equidistant from points A(4,8)and B(-6,6) SECTION D All questions are similar in 30/2 set except Q.No.31, 32 and 34 31. (x – 4) / (x – 5 )/ (x – 6) / (x – 7 ) = 10/3 32. Five cards – the ten, jack ,queen king and ace of diamonds are are well