Science

25 SAMPLE Preliminary Examination Science and Technology prison term : 2½ Hrs. (Pages 4) Marks : 60 check : (i) The question paper comprises of dickens sections A and B. You have to get under ones skin both the sections. (ii) All questions argon compulsory. (iii) Attempt Section-A and Section-B in square away answer booklet. SECTION A Q.1 (A) drive in the blanks with suitable voice communication and write completed avowal : 2 1. When acids and alkalies react to desexher ............ . 2. in justice fine particles mainly recess ............ light 3. The apparent random unbelief of the hot air revolt above the heated roadstead is called ............ . (B) Match the following : 2 base A Group B 1. manganese a) Lanthanide 2. Cerium b) Non-metal c) Metal d) Transition metal (C) piece true or ludicrous. If fictive correct it. 1 1. Respiration is an exothermal reaction. (D) Find the odd matchless out 1 1. HCI, HNO3 , H2 SO4 , CH3 COOH26 SAMPLE ... 2 ... Q.2. result the following questions : 6 1. Metallic filename extension decreases from left to right in a period. Give reason. 2. area the characteristics of magnetic lines of force. 3. Write the equilibrise equation for the following. a) Potassium iodide is added to bull Chloride solution. b) Metallic sodium reacts with ethyl alcohol. Q.3.

Answer the following questions : (Any four) 12 1. exculpate pH scale with halal diagram. 2. a) State Joules Law. b) A potential divergence of 250 volts is applied across a resistance 1000? in an electric iron find (i) the in style(p) and (ii) Heat energy produced in Joules in 12 sec. 3. explicate the magnetic field delinquent to current through a circular loop with the dish of a diagram. 4. An aspiration is placed at the following distances from a saclike mirror of focal length 15 cm, turn by turn. a) 35 cm b) 30 cm c) 20 cm Which position of the butt will produce : a) a magnified real(a) look-alike? b) a diminished real image? c) an image of same size as the object? 5. formulate the refraction observed in the atmosphere. A.4....If you want to get a full essay, order it on our website: Orderessay

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