UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS GCE Ordinary Level e ap .c rs om MARK SCHEME for the May/June 2011 question paper for the guidance of teachers 5070 CHEMISTRY 5070/21 Paper 2 (Theory)‚ maximum raw mark 75 This mark scheme is published as an aid to teachers and candidates‚ to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’
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Questions: 1] when simplified is: [Marks:1] A. negative and irrational B. negative and rational C. positive and irrational D. positive and rational 2] The value of the polynomial x2 – x – 1 at x = -1 is [Marks:1] A. Zero B. -1 C. -3 D. 1 3] The remainder when x2 + 2x + 1 is divided by (x + 1) is [Marks:1] A. 1 B. 4 C. -1 D. 0 4] In fig.‚ AOB is a straight line‚ the value of x is: [Marks:1] A. 60° B. 20° C. 40° D.
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8383212 to Octal [9 marks] (b) Evaluate 83A7F4.5D16 + B5B63.3E16. (Show working in Base 16) [5 marks] (2) A computer stores a number of 16 bits word using floating-point arrangement. Given that the first bit is reserved for the sign and followed by 6 bits for the exponent using biased form. The remaining bits are used for the mantissa with a hidden bit. (a) Show how the computer stores -37.87510 [5 marks] (b) What is the decimal value for 10111101100000002? [5 marks] (3) Using BCD representation
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Centre Number Surname Other Names Candidate Signature Candidate Number For Examiner’s Use Examiner’s Initials Question Mark General Certificate of Secondary Education June 2011 1 2 3 4 5 6 Design and Technology: Graphic Products Unit 1 Written Paper Friday 10 June 2011 1.30 pm to 3.30 pm 45501 7 For this paper you must have: a black fine-line pen‚ a pencil‚ a ruler‚ an eraser‚ a pencil sharpener and coloured pencils. TOTAL Time allowed 2 hours Instructions Use black
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Haloarenes) (Q.1) Choose the incorrect statement about the benzyl chloride: ( 1 mark ) (a) It is less reactive than alkyl halides. (b) It can be oxidized to benzaldehyde by boiling with copper nitrate solution. (c) It is a lachrymatory liquid and answers beilstein’s test. (d) It gives a white precipitate with alcoholic silver nitrate (Q.2) Dry ether The reaction RX + 2Na + RX _______________? R-R + 2NaXis called. ( 1 mark ) (a) Sandmeyer’ reaction (b) Fittig reaction (c) Wurtz reaction (d) Williamson’s
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BUSMGT 711: MANAGING PEOPLE AND ORGANISATIONS 201x‚ Quarter X Week X Mid-Term Test (20%) This test is marked out of 100 marks. Date Student Name: Student ID: Section A: Multiple Choice Questions (Total 30 marks) (30 questions; 1 mark each) Instructions: Circle the best answer for each question. ________________________________________________________________ 1) Frederick Taylor is called the father of scientific
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Mark Pitts Peoplestreet is recruiting a VP of Business Development; Mark Pitts is the leading applicant. The company serves as a human resource and recruiting service. Their strategic purpose was to develop an effective‚ popular and updated online hiring search engine for employees called “LiveCard.” This is an example of horizontal related diversification. Their competitive advantage is low cost. They achieve product differentiation by providing updated and almost live information on each
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expression for the shear stress. [4 marks] b) An ice hockey puck traverses the ice on a thin sheet of water. A puck struck by an ice hockey player Initially travels at a speed of 20 m/sec‚ the thin layer of water between the puck and the ice has a thickness of 0.2 mm calculate the shear stress if the viscosity of the water is 0.0018 kg/m sec. [8 marks] A puck has an approximate diameter of 80 mm‚ calculate the initial drag force on the puck. [5 marks] c) In the figures below
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essentially the same customer segment. 1.1 Introduction Mark & Spencer is a leading retailer that offers stylish‚ high quality and great value clothing for a wide range of audience (M&S‚ 2011). They are also offering other products and service such as homeware‚ outstanding quality foods and financial services. Mark & Spencer was established in year 1884 and introduced by a Russian-born Polish refugee who name Michael Marks. Mark & Spencer had operated it business from a stall and grown into
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EXECUTIVE SUMMARY This report critically analyses the impact of external and internal influences on the business strategies of Marks and Spencer (M&S) between 1996 and 2002‚ evaluates the factors‚ and modifies its business strategies. The major finding is that M&S has successful business strategies and marketing plans. However‚ the company does not maintain these advantages continuously. Indeed‚ it causes some disadvantages. The purpose of this report is to evaluate how M&S survives
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