Gctse 8th Paper

8th class/GCTSE LEVEL - I www.gtse.org

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SECTION - I - IIISINGLE ANSWER TYPE QUESTIONS

This section contains multiple choice questions. Each questionhas 4 choices (A), (B), (C) and (D), out of which ONLY ONE is correct.Each correct answer carries 4 marks. No negative marks. Zeromarks if not attempted.

Direction (Questions 1 to 5) : The following questions are basedon the diagram given below :

3

8 610

7

13

149

5

114

12

1) Rectangle represents males.2) Triangle represents educated.3) Circle represents urban.4) Square represents civil servants.

01. Who among the following is neither a civil servant noreducated but is urban and not a male ?A) 2 B) 3 C) 6 D) 10

02. Who among the following is uneducated and also an urbanmale ?A) 2 B) 3 C) 11 D) 12

03. Who among the following is only a civil servant but not amale nor urban oriented and uneducated ?A) 7 B) 8 C) 9 D) 14

04. Who among the following is a male, urban oriented andalso a civil servant but not educated ?A) 13 B) 12 C) 6 D) 10



05. Who among the following is a male civil servant, who isneither educated not belongs to urban area ?A) 7 B) 13 C) 4 D) 1

Directions (Questions 6 to 10) : Read the following informationcarefully and answer the questions given below it :From a group of six boys M, N, O, P, Q, R and five girls, G, H, I,J, K, a team of six to be selected. Some of the criteria ofselection are as follows :

M and J go together. O cannot be placed with N.

I cannot go with J. N goes with H.

P and Q have to be together.

K and R go together.

Unless otherwise stated, these criteria are applicable to allthe following questions :

06. If the team consists of two girls and I is one of them, theother members are

A) GMRPQ B) HNOPQ C) KOPQR D) KRMNP

07. If the team has four boys including O and R, the membersof the team other than O and R are

A) HIPQ B) GKPQ C) GJPQ D) GJMP

08. If four members are boys, which of the following cannotconstitute the team ?

A) GJMOPQ B) HJMNPQ C) JKMNOR D) JKMPQR

09. If both K and P are members of the team and three boys inall are included in the team, the members of the team otherthan K and P are

A) GIRQ B) GJRM C) HIRQ D) IJRQ

10. IF the team has three girls including J and K, the mem-bers of the team other than J and K are

A) GHNR B) MNOG C) MORG D) NHOR



11. First bunch of bananas has 14 again as many bananas as a

second bunch. If the second bunch has 3 bananas less thanthe first bunch, then the number of bananas in the firstbunch are

A) 9 B) 10 C) 12 D) 1512. In a class, there are 18 boys who are over 160 cm tall. If these

constitute three-fourths of the boys and the total number ofboys is two-thirds of the total number of students in the class,what is the number of girls in the class ?

A) 6 B) 12 C) 18 D) 24

13. A bird shooter was asked how many birds he had in thebag. He replied that there were all sparrows but six, allpigeons but six, and all docks six. How many birds had hein all ?

A) 9 B) 18 C) 27 D) 36

14. I have a few sweets to be distributed. If I keep 2, 3 or 4 ina pack, I am left with one sweet. If I keep 5 in a pack, I amleft with none. What is the minimum number of sweets Ican have to pack and distribute ?

A) 25 B) 37 C) 54 D) 65

15. In a caravan in addition to 50 hens, there are 45 goats and8 camels with some keepers. If the total number of feet be224 more than the number of heads in the caravan, thenumber of keepers is

A) 5 B) 8 C) 10 D) 15



SECTION - IVSINGLE ANSWER TYPE QUESTIONS

This section contains 5 multiple choice questions. Eachquestion has 4 choices (A), (B), (C) and (D), out of which ONLYONE is correct. Each correct answer carries 4 marks. No negativemarks. Zero marks if not attempted.

16. Rusting of ion can be chemically called as _________A) Combination B) DisplacementC) Decomposition D) Metattesis

17. All combustion reactionsA) are endothermic B) are exothermicC) may be endothermic or exothermicD) physical changes

18. Law of definite proportions when expressed in vol-umes becomesA) Daltons law B) Berzelius hypothesisC) Gay - lussacs law D) Avogadros law

19. In a balanced chemical equation mass on either sideis same becauseA) moles are conserved B) molecules are conservedC) atoms are conservedD) one element is conserved to the other

20. An example of non - stoichiometric compound is

A) 2 3Al O B) 3 4Fe O C) 2NiO D) PbO



SECTION V

MULTIPLE ANSWER QUESTIONSThis section contains 5 multiple correct answer (s) typequestions. Each question has 4 choices (A), (B), (C) and (D), outof which ONE OR MORE is/are correct. Each correct answercarries 4 marks. No negative marks. Zero marks if not attempted.

21. Types of allotropy exhibited by sulphur isA) enantiotropy B) monotropyC) dynamic allotropy D) isomeric allotropy

22. Oxygen is given by heating

A) 2 2H O B) 3O C) 2 4H SO D) 3 4Pb O

23. Phosphorite, 3 4 2Ca PO , is chief constituent ofA) shells B) bones C) chalk D) teeth

24. Chlorine can be usedA) for extraction of Ag, CuB) in sterilisationC) as a bleaching agentD) in preparation of antiseptic

25. 2ClO is a mixed anhydride of

A) 4HClO B) 2HClO C) 3HClO D) HOCl

SECTION - VIINTEGER TYPE QUESTIONS

This section contains 5 questions. The answer to each questionis a single digit integer ranging from 0 to 9. The correct digitbelow the question number in the OMR is to be bubbled. Youwill be awarded 4 marks for the correct answer and zero mark ifno bubbles are darkened. No negative marks.

26. Caffeine has a molecular weight of 194. If it contains28.9% by mass of nitrogen, number of atoms of nitrogenin one molecule of it is (Atomic weight of nitrogen is 14)___________.



27. Oxidation number of W in 2 4 13 2.10Na W O H O is _____28. An oxide of sulphur contains 50% of S in it. It empirical

formula is given by m nS O . Then n/m = ________. [m.w ofS is 32 & 0 is 16].

29. 6 6 2 2 2( ) ( ) ( )C H g O CO g H O l . The ratio of coeffi-

cients of 2CO and 2H O is found to be 2 : x. The value ofx is ___________.

30. In 2 2 22 2H O H O , if 12 L of 2H and 8 L of 2O are

allowed to react, the excess of 2O left unreacted will be____ L.

SECTION - VIIMATRIX MATCHING

This Section contains 5 questions. Each question has four state-ments (A, B, C and D) given in Column I and four statements (P,Q, R and S ) in Column II. Any given statement in Column I canhave correct matching with one or more statement(s) given inColumn II. For example, if for a given question, statement Bmatches with the statements given in Q and R, then for thatparticular question, against statement B, darken the bubblescorresponding to Q and R in the ORS. You will be awarded 1marks for each correct answer. There is no negative marksawarded for incorrect answer(s).

31. Column I Column IIA) Synthesis P) 3 22 2 3KClO KCl O

B) Decomposition Q) 2 2KBr Cl KCl Br C)Single replacementR) AgNo3 + Nacl --> Agcl +NaNo3

D) Metathesis S) 2 2 32 2SO O SO



32. Column I Column II

A) Endothermic P) 2 22HI H I

B) Exothermic Q) 2 2C S CS H

C) Thermal R) 2HCl NaOH NaCl H O

dissociation

D) Neutralization S) 2 2C O CO H 33. Column I Column II

A) Law of conservation of mass P) LavoiserB) Law of definite proportions Q) RitcherC) Law of reciprocal proportions R) Prouse

D) Law of multiple proportions S) Dalton

34. Column I Column II

A) 1 GmW of 2H O P) 1.8 gB) 1 mole of oxygen Q) 3.6 g

C) 0.02 g molecules of glucose R) 18 g 6 12 6( )C H O

D) 20 L of 2H gas S) 32 g35. Column I Column II

A) Oxygen P) Life processB) Sulphur Q) SterilisationC) Chlorine R) Gun powderD) Nitrogen S) artificial respiration



SECTION- VIIICOMPREHENSION TYPE

This section contains a paragraphs. Based upon the paragraph,5 multiple choice questions have to be answered. Each questionhas 4 choices (A), (B), (C) and (D), out of which ONLY ONE is correct.Each correct answer carries 4 marks. No negative marks. Zeromarks if not attempted.

Consider a reaction, 2 2 33 2N H NH , which is the finalreaction of Habers process. Let us see what can weinterpret from this.

(i) Mole relation : - 1 mole of 2N consumes 3 moles of 2H to

produce 2 moles of 3NH .

(ii) Weight relation : - 28 g of 2N consumes 6 g of 2H to

produce 34 g of 3NH .

(iii) Volume relation : - 22.4 L of 2N consumes 67.2 L of 2H

to from 44.8 L of 3NH

(iv) Mole 0 wt. relation : - 1 mole of 2N consumes 3 moles of

2H to produce 34 g of 3NH .Similarly we can write relation among mole volume,wt. - volume and also number of molecules.

36. Which of the following contains largest number ofatoms ?

A) 4 g of 2H B) 16 g of 2O

C) 28 g of 2N D) 18 g of 2H O37. If M is the molecular weight of a gas, what volume of

it would be occupied at NTP if its weight is M/4 g ?A) 89.6 L B) 2.24 L C) 5.6 L D) 22.4 L

38. To get 1.12 L of 2O at STP, weight of 3KClO to be

heated is ___________. (m.w of 3 122.5KClO g )



A) 408 g B) 4.08 g C) 40.8 g D) 0.408 g

39. By strongly heating 17.0 g of certain 2 2H O (m.w =

34 g) solution 1.120 mL of 2O at STP was obtained.

Percentage by weight of 2 2H O in that solution isA) 10% B) 20% C) 12% D) 34%

40. 1 L of a mixture of CO and 2CO is passed over red hotcharcoal. The volume becomes 1.6 L. The original com-position of the mixture is

A) 0.4 L CO + 0.6 L 2CO B) 0.5 L CO + 0.5 L 2CO

C) 0.6 L CO + 0.4 L 2CO D) 0.7 L CO + 0.3 L 2CO

SECTION IXASSERTION & REASONING

This section contains 5 reasoning type questions. Each questionhas 4 choices (A), (B), (C) and (D), out of which ONLY ONE is correct.Each correct answer carries 4 marks. No negative marks forwrong answers. Zero marks if not attempted.

Codes:(A) Both Assertion and Reason are true and the

Reason is correct explanation of the Assertion.(B) Both Assertion and Reason are true but the

Reason is not correct explanation of the Assertion.(C) Assertion is true, but the Reason is false.(D) Assertion is false, but the Reason is true.

41. Assersion : Chlorine gas bleaches the articlespermanently.

Reasin : 2Cl is a strong reducing agent.

42. Assersion : 4HClO is a stronger acid than 3HClO .

Reason : Oxidation state of Cl in 4HClO is + 7 and in

3HClO is +5.



43. A :- Sulphuric acid is more viscous than water.

R :- conc. 2 4H SO has a strong affinity for water.

44. A :- 5PCl is covalent in gaseous and liquid states butionic in solid state.

R :- 5PCl is tetrahedral in 4PCl and octahedral in

6PCl ion.

45. A :- In the reaction between 3AgNO and KCl solu

tion, K and 3NO ions do not undergo any change.

R :- Some ions do not undergo any change as a result ofthe reaction. Such ions are called spectator ions.

SECTION X

CONCEPTUAL QUESTIONS

This section contains 5 reasoning type questions. Each questionhas 4 choices (A), (B), (C) and (D), out of which ONLY ONE is correct.Each correct answer carries 4 marks. 1 mark will be deductedfor wrong answer. Zero marks if not attempted.

46. The conversion 4 2 4KMnO K MnO is an example ofA) oxidation B) reductionC) oxidation and reduction D) neither oxidation,

nor reduction

47. The volume occupied by 226.023 10 molecules of

2H S at STP isA) 11.2 L B) 22.4 L C) 2.24 L D) 1.12 L

48. The mixture containing the same number of mol-ecules as that of 14 g of CO is

A) 14 g of 2N + 16 g of 2O B) 7 g of 2N + 16 g of 2O

C) 14 g of 2N + 8 g of 2O D) 7 g of 2N + 8 g of 2O



49. 1 L of a gas is twice as heavy as 1 L of 4CH under thesame conditions. The gas is

A) Ozone 3( )O B) Oxygen 2( )O

C) Carbon dioxide 2( )CO D) Sulphur dioxide 2( )SO

50. Ramu thinks that a mole contains 236.023 10 mol-ecules. Hence the mass of Ramus mole of oxygen isA) 1.6 g B) 16 g C) 160 g D) 0.16 g

ALL THE BEST



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should be tougher than this.

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Last date to apply : 30-12-2012.1st level of GMTSE: 23-01-2013.2nd level of GMTSE: 07-02-2013.

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