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ICSE Class X Prelims 2026 : Chemistry (M. P. Birla Foundation Higher Secondary School (MPBFHSS), Kolkata)

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Ujaan Gupta
M. P. Birla Foundation Higher Secondary School (MPBFHSS), Kolkata
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M.P.BIRLAFOUNDATION HIGHER SECONDARY SCHOOL SELECTION EXAMINATION 2023-24 Class -X SUBJECT-CHEMISTRY FULL MARKS-80 TIME - 2 Hours SECTION A [40 marks 1 (Attempt allthe questions) 1. Choose the correct answers to the questions from the given options: [15) i) Element P is to the right of element Q in the periodic tatble. Atomic size of Q is: a) smaller than P b) bigger than P c) almost same as P d) cannot be compared i) Abasic gas is passed over copper(ll) oxide. The observation for the given reaction is: a) a grass green compound leaves a black residue b) a blue compound leaves a black residue c)a black compound leavesa pink residue d) ayellow compound leaves a pink residue ii) Assertion (A) : Ca atom is more reactive than Ca* ion. Reason (R) : As Ca* ion has reached the nearest noble gas configuration, thus stable. a) both A and R are true b) both A and R are false c) A is true and R is false d) A is false and R is true iv) Assertion (A) :during laboratory preparation of HCI the temperature is maintained below 200 C Reason (R):only fuel gets wasted a) both A and R are true b) both A and R are false c) A is true and R is false d) A is false and R is true 1 v) Gases SO; and O, are present in 2 different cylinders (1)and (2) of equal volume at S.T.P. Masses of SO, is 64g and O, is 32g respectively. Which of the following statements regarding the number of molecules present in cylinder (1) and (2) is correct: P:cylinder (1) has twice the number of molecules as present in cylinder (2) Q: same number of molecules is present in cylinder (1) and cylinder (2) a) only P b) only Q c) both P and Qmay be correct d) neither P nor Q vi) Metals are good reducing agents as they: a) have a bigger atomic size b) have strong electron affinity c) readily donate d) are good electrons conductors of electricity Vi) The given table shows some metals, their ores and alloys. Which option / options is /are correctly matched: Metal X Ore Iron Zinc Lead Aluminium a) only W Alloy Stainles steel Haematite Calamine Cryolite Bauxite b) only X c) only Y Duralumin Fuse metal Brass d) both W and Z vii) The E.F. of butanoic acid is: a) CHO; b) CH,02 c) CzH40 d) CHz0 ix) An element has three shells and belongs to Group 16. The Period, number of valence shellelectrons and valency of the element is : a) 3, 16, 1 b) 3,6,2 c) 3,6,3 d) 3,16,2 x) Which of the following functional group is always terminal : a) - CHO b)- OH d)-CCt 2 3 in 2.A) xv) i) i) i) Xii) xiv) Xi) xii) Elements Conc. HSO Correct or IfWhich 4 The only a) P Given a) The c) a) c) a) 14 CO2 To R: Pent-1-ene A: a) Option reducing they A both 11 12 gms N2, which period dissolution R SO3 Sulphur positional gaseous gms gms is +C arelement e are true H20 A is X of ). Period and dissolved some having of of CO 1.P. and in Ester vapour 2CO and Ammonia trioxide Sulphur dioxide CO2 CO2 products nature R isomer has of Y wil R are compounds does 2 belong X is be Compound (C-12,0-16] electrons the is in gas false true ? obtained b) Q Pent-2-ene b) of only b) conc.H2SO4 obtained bigger and Xless NO, cannot Pentene to than the d) b) Y with in Hz0 from:ooo atomic belong 44 22 same their be Y. when wil their gms gms vapour to dissolved d) b) valence size be Aboth avoid ammonia ? group, of of is pungent smellsmell : fruitysmell characteristic CO2 CO2 Pent-3-ene c) c) false only c)R and A spurting NO and but in shell why of water and is only rotten R of catalytically then ? R are different during smell. hence is false d) wil eggs true Smell NO, t h e Which they it Periods d) is Q&Rbothd) process dissolved andoxidised none be option oxidising (3 [5] H20 of of them vapour are is and of of an acid. in statements a molecule atom : by the 4following present described hydrogen E) as the term/ replaceableprocess the number i)Name [5) How M?( equation ) in the air. ore ? P to being Concentrate of it. give roasted balanced use to of the ore has P, and to the ethanol observation added B is equation when the balanced Mhappens of burnt oxide Q [5] liquid non-Volatile test-tube, colour. and taken to i B. t, compound loses A its structure and the of B a in a [51 atbove the when formed of 1:1 in of the gas. of 13. and hydrogen H=1] Carbon C=12, [ density of the the has compound. compound. vapour the preparation compound chlorine. with the ratio i) Find are formula compound the laboratory name and fornmula equation i) i) Give Give B) An organic present t h e t h e balanced one structural molecular gaseous use combines in iv) State compound compound. completely A is Acrystalline added whiteC) A i) i) when i) What Give ldentify in gas air equation ( produces of R t h e which onlreaction. y smells a ). metallic anda roasted when with which temperature colour changes D) i) i) i) which Metal Give Whichldentify ore.thsulphur. e wil an balanced method Q alloy be reduced of equation wil M be and1 used Name V) iv) [51 order the ascending belongs which the Period in Y to of V) the elements their|Arrange .P.of iv) of i) 3.i) of reactions Method. Baeyer's andBauxiteof the electrode by [2+2+3+3 ] atomic has the gas of ? with Z. 20. number formed X weight combines bewhen wil Findbonding formed the molecular gm. Z questions any ] Marks[40 ] 4 SECTION B [Answer (2+2+3+3 ] i) i) i) a) iv) b)Distinguish b) a)Name a) b) What Element Duralumin a) Mention 455 If Dilute a Sodium Gi v e the IfShow Hall-Heroult' Process.s Show solid 1 X litre gas ar e ml combines the balanced and the the X dibasic sulphite chemically of of 1 the which a following: use hydrogen gas electrolytic Lewisbelongs concentrated constituents of wil acid at with equations each and dot S.T.P. to turn at chlorine, structure group sodium between: dissociation ofmetal Fuse b) S.T.P. methyl hydrochloric of: weighs of the 15 the above what thiosulphate weighs of and orange purification 0.91 the of alloys. kind element Cryolite acid 0.09 gm. molecule yellow 4.i) force of of molecule ina atoms any two to exists from ethanol between that acetate attraction ethyl stability. maintain ) organic ) of caustic alcoholic presence halide in an alkyl from alkene strUctural different but formula molecular same having compounds an obtaining formula potash formation the V) iv) 6 CH3 Br H Hc a) -C=CH2 hexaneneo b) name the and name IUPAC of acid acid nitric sulphuric 2+2+3+3] [ the fifth formula structural symmetrical of : hydrochloric the H IUPAC Why b)Namethe a) with: reacting is ? as the attaken not electrolyte anode. of takingsolution copper place equation acid c) the silver reaction nitrate electrolyte used Show concentrated concentrated dilute balanced the c) iv) Give b) a) 6.i) i) Give alkyne.ofWrite homologue being of ion. hydronium [2+2+3+3 1 most by the salts given the of of the equation balanced of with thechloride Ferrous b)preparation silver formation structure dot the isLewis electroplated Batery spoon 5.i) i) i) Cuprica) AShowsulphate suitable method: Give 7 properties solvent the gas by the wil above be tdiagram he What soluble. be exhibited in of which the and why the gas ? gas are wil being formed solution an of physical theorganic X c) b) a) nature Name Which ldentify below, extinguished gets candle the in is with reacts hydroxide ammonium excess with ammonia treated air GAS X) Air gas ammoniaproces of dissolution when:Hal-Heroults in [2+3+51 and Find at S.T.P. the volume water. dm of 16.8 of to todibromide alkane propionate carbon-dioxide obtain from from from obtain: equations a ethylene halosodium S.T.P.oxidised at completely ) to i) Gi v e c) b) a) ethene Ehene methanol an an balanced alkyne alkane is required carbon-dioxide 7.i) i) i) b) a) In c) b) a)What Mention excess powdered tammonia he inverted cupric would diagram the sulphatechlorine funnel you gas charcoal use given is observe of: during burntsolution gas

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