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URANIUM TALENT SEARCH EXAMINATION(UTSE) - 2013(CBSE/ICSE)

Time: 60 minutes(11 am - 12 noon) Class- VII F.M - 180(+3/-1 system)

Declaration of Result in the internet(www.theuranium.org) : 05.03.2013

(There are 60 MCQs and each has one correct answer.. 3 marks will be given for each correct answer and 1 mark will be

deducted for each wrong answer.)

1. When phenolphthalein is added to a test solution, the colour of the solution becomes pink. What

happens if a litmus paper is dipped in the same test solution ?

(a) blue litmus changes to red (b) red litmus changes to blue

(c) red litmus remains red (d) blue litmus remains blue

2. Blue litmus paper is dipped in a solution, its colour changes to red. Which of the following should be

added to get back its blue colour.

(a) same quantity and same strength of a base (b) same quantity and same strength of an acid

(c) excess quantity and same strength of a base (d) excess quantity and same strength of an acid3. When a salt is heated strongly in a dry test tube, water droplets are deposited on the cooler part of

the test tube. This indicates that the salt is

(a) hydrated (b) deliquescent (c) anhydrous (d) insoluble in water

4. The ant bite effect on our skin can be neutralised by rubbing which of the following on the skin ?

(a) formic acid (b) vinegar (c) baking soda (d) NaCl solution

5. OHClMnClKClHCl 2224KMnO

After balancing, the coefficients of KMnO4,

HCl, Cl2and H

2O are

(a) 1,8,5,4 (b) 2,5,1,5 (c) 2,16,5,8 (d) 1,5,1,4

6. The formula of cuprous chloride is

(a) CuCl3 (b) Cu2Cl (c) CuCl2 (d) Cu2Cl27. Which of the following is liquid at room temperature?

(a) Br2

(b) Hg (c) H2O (d) All the above

8. Na and Na+have different numbers of

(a) protons (b) electrons (c) neutrons (d) nucleons

9. Galvanisation is a

(a) physical change (b) chemical change

(c) first chemical then physical change (d) first physical then chemical change

10. O2is

(a) the symbol of oxygen (b) the formula of oxygen

(c) used in anaerobic respiration (d) required for photosynthesis in plants11. Symbol of silver is

(a) Si (b) Sl (c) Ag (d) AG

12. Zincate radical has

(a) one atom of Zn, two atoms of oxygen and two units of negative charge

(b) one atom of Zn, two atoms of oxygen and two units of positive charge

(c) one atom of Zn, two atoms of oxygen and no charge

(d) two atoms of Zn, one atom of oxygen and two units of negative charge

13. An element on heating with excess oxygen gives a colourless gas. The gas turns lime water milky.

The symbol of the element is

(a) N (b) C (c) F (d) B

14. Which of the following statement is correct about oxygen gas ?

(a) it is lighter than air and practically insoluble in water

(b) it is heavier than air and practically insoluble in water


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(c) it is lighter than air and appreciably soluble in water

(d) it is heavier than air and appreciably soluble in water

15. Nutrition is a process, that includes

(a) digestion,absorption,transportation & metabolism

(b) respiration,absorption,transportation & metabolism

(c) digestion,respiration,transportation & metabolism

(d) digestion,respiration,transportation & absorption16. Mistletoe is

(a) autotroph (b) symbiotic (c) heterotroph (d) saprophytic

17. Which is not true about photosynthesis ?

(a) it is possible in autotrophs (b) stomata present in leaves helps it

(c) it cannot occur in absence of sunlight (d) xylem has no role in it

18. Statement (i) All plants are autotrophs.

Statement (ii) Cholorophyll present in green plant makes a plant autotroph.

(a) statement (i) and (ii) are correct

(b) statement (i) is wrong but Statement (ii) is the correct.

(c) statement (i) is correct but Statement (ii) is the wrong.(d) statement (i) and (ii) are wrong

19. The juice secreated by largest solid organ of our body helps digestion of

(a) carbohydrate (b) protein (c) fat (d) starch

20. Which of the following statement is wrong?

(a) pulmonary veins carry oxygen rich blood

(b) pulse rate and rate of heart-beat are always same

(c) blood can transport only oxygen in the body

(d) arteries and veins are connected by capillaries

21. Which process generates a force that helps root to absorb most volume of water from soil ?

(a) diffusion (b) osmosis (c) endocytosis (d) transpiration

22. The major excretory product in the urine of a healthy human being is

(a) urea (b) uric acid (c) ammonia (d) glucose

23. A bud can grow to form

(a) a flower (b) a new plant (c) an organism (d) all the above

24. Pollen grains are present in

(a) stigma (b) anther (c) ovary (d) filament

25. Self-pollination may be found in

(a) peas (b) corn (c) papaya (d) cucumber

26. The process of formation of zygote is called as

(a) reproduction (b) fertilisation (c) pollination (d) embryo formation

27. During anaerobic respiration in muscle cells, glucose breaks down to form(a) carbondioxide (b) alcohol (c) lactic acid (d) all of these

28. During inhalation,

(a) ribs move down & inward and diaphragm moves down

(b) ribs move up & outward and diaphragm moves up

(c) ribs move down & inward and diaphragm moves up

(d) ribs move up & outward and diaphragm moves down

29. Which of the following organ is responsible for respiration in earthworm ?

(a) lungs (b) spiracles (c) skin (d) gills

30. Which is correct about plant respiration?

(a) they need carbon dioxide instead of oxygen(b) they need air only from atmosphere

(c) stomata helps for exchange of gases

(d) all are correct


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31. 36 grams of water contains ............. grams of oxygen

(a) 4 (b) 8 (c) 16 (d) 32

32. Dry ice is

(a) solid water (b) solid carbondioxide

(c) solid methane (d) solid ammonia

33. Tassar Silk is

(a) carbohydrate (b) protein (c) fat (d) none of these34. In wool making, the process of removal of grease, dust and dirt particles from sheared skin

containing hair by using detergent solution is called

(a) shearing (b) scouring (c) reeling (d) sorting

35. Transpiration is

(a) a physical change (b) chemical change

(c) first physical then chemical change (d) first chemical then physical change

36. If an iron nail is kept inside a copper sulphate solution taken in a beaker, which of the following

occur ?

(a) solution becomes green and a thin blue coloured solid is deposited on iron nail

(b) solution becomes colourless and a thin red coloured solid is deposited on iron nail(c) solution becomes red and a thin silver coloured solid is deposited on iron nail

(d) solution becomes green and a thin red coloured solid is deposited on iron nail

37. Which of the following gas, the plant cant absorb directly from air?

(a) O2

(b) N2

(c) CO2

(d) all can be absorbed directly from air

38. When ice melts

(a) temperature increases (b) temperature decreases

(c) there is no change in temperature (d) temperature becomes 1000C

39. Density of water is maximum at

(a) 00C (b) 10C (c) 40C (d) 1000C

40. Permanent hardness can be removed by

(a) boiling (b) filtering

(c) treating with sodium carbonate (d) a,b,c

41. The process by which the loss of underground water is made up is called

(a) water harvesting (b) bawris (c) infiltration (d) drip irrigation

42. Which is true about rusting of iron ?

(a) atmospheric oxygen and water vapour change iron into iron oxide(Fe2O

3)

(b) atmospheric oxygen, carbon dioxide and water vapour change iron into iron carbonate(FeCO3)

(c) atmospheric oxygen and water vapour change iron into iron oxide(FeO)

(d) atmospheric oxygen, carbon dioxide and water vapour change iron into iron oxide[Fe2(CO

3)

3]

43. In which of the following, heat is not transmitted by the process of convection ?

(a) whirl wind (b) land breeze (c) heating milk in a stove(d) keeping a hot cup of tea outside to cool spontaneously

44. Which of the following takes place in Land Breeze ?

(a) cold air from land flows to sea (b) cold air from sea flows to land

(c) land remains comparatively warmer than sea (d) none of these

45. Which of the following is correct about heat transmission ?

(a) In convection, the particles of the matter vibrate from their mean positions

(b) In conduction, the particles change their positions

(c) In radiation process a medium is not required

(d) all of these

46. The motion of cycle wheel on a plane road surface will be(a) linear motion (b) circular motion (c) both linear and circular motion

(d) oscillation


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47. A car is travelling in a uniform speed of 72 Km/hr in a straight line. What distance will it travel in the

20th minute ?

(a) 1.2 Km (b) 24 Km (c) 1440 Km (d) 20 m

48. The time peirod of oscillation of a simple pendulum depends on which of the following ?

(a) the mass of the bob (b) length of pendulum

(c) both mass of the bob and length of pendulum (d) amplitude of oscillation

49. When an object is at rest, its time - distance graph will be (take time in x- axis and distance in they-axis)

(a) straight line parallel to y-axis (b) straigth line passing through origin

(c) strainght line which cuts both on x- and y- axes

(d) straight line parallel to x- axis

50. A motor car started from Cuttack and covered 30 Km in the first hour and then 42 Km in the next

hour to reach Chandanpur. Then the average speed of the car between Cuttack and Chandanpur is

(a) 72 Km/hr (b) 36 m/s (c) 42 Km/hr (d) 10 m/s

51. A bus travelled with an average speed of 54 Km/hr to cover the distance between two towns in

30 minutes. What is the distance between the two towns ?

(a) 2.7 m (b) 108 m (c) 27 Km (d) 37 Km52. Which is true about the resistance wire used in a fuse.

(a) the wire melts when high current passes through it and the electrical circuit is closed

(b) the wire melts when small current passes through the fuse

(c) the wire is made up of such metal(s) for which it melts easily

(d) all of these are correct.

53. The humidity(level of water vapour in the atmosphere) in summer seasons at the places nearing the

equator is _____ than that in winter season.

(a) greater (b) lesser (c) same (d) cant be said

54. Let us keep some boiling water in a tin container and close it with its cap. Then let us pour some

cold water on the tin container. We shall observe that the tin container will be pressed inwards. The correctreason for this is

(a) the pressure of air inside the tin container becomes less than atmospheric pressure

(b) the pressure of air inisde the container becomes greater than atmospheric pressure.

(c) the pressure of air inside the container becomes equal to atmospheric pressure

(d) all of these

55. When water vapour is converted to liquid water, then it

(a) absorbs heat (b) evolves(emits) heat (c) neither absorbs nor evolves heat

(d) cant be said

56. In which year the state of Odisha was struck with super cyclone ?

(a) 2003 (b) 1999 (c) 2009 (d) 1998

57. A clinical thermometer reads temperature in the range of

(a) 30 - 400C (b) 40 - 500C (c) 35 - 420C (d) 90 - 1000F

58. Which of the following is not true about the image of an object formed in a plane mirror ?

(a) upright and of same height as that of object (b) left-right reversal occurs

(c) can be captured on a screen(real image) (d) object distance = image distance

59. Which of the following is wrong about the image formed in a concave mirror ?

(a) it can bigger or smaller than object (b) it can be real or virtual

(c) it is always erect (d) it can be erect or inverted

60. You are standing in front of a plane mirror and a friend of yours is standing behind you. Your friend

is showing some word written on paper towards the mirror. What should be written on the paper so that

you read the word as DOCTOR while looking at the mirror.(a) DOCTOR (b) (c) (d)


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ANSWER(UTSE-2013)VII(EM)1.B 2.C 3A 4.C 5.C 6.D 7.D 8.B 9A 10B 11C 12.A

13.B 14.B 15.A 16.C 17.D 18B 19.C 20.C 21.D 22.A 23.D 24.B

25.A 26B 27C 28D 29.C 30.C 31D 32B 33.B 34.B 35A 36.D

37.B 38.C 39.C 40.C 41.C 42.A 43.D 44.A 45.C 46.C 47.A 48.B

49.D 50.D 51.C 52.C 53.A 54.A 55.B 56.B 57.C 58.C 59.C 60.D

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