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ICSE Class X Prelims 2024 : Chemistry (Bishop Moore Vidyapith (BMVM), Mavelikara, Alappuzha)

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BISHOP MOORE STD-X VIDYAPITH MAVELIKARA SECOND MODEL EXAMINATION 2023-2024 CHEMISTRY (SCIENCE PAPER-2) Maximum Marks: 80 Time allowed: Two hours Answers to this Paper must be written on the paper provided separately. You willnot be allowed to write during first 15 minutes. This time is to be spent in reading the question paper. The time given at the head of this Paper is the time allowed for writing the answers. Atempt all questiQns fromSection Aand any four questions from Section B. The intended nmarks for questions or parts of questions are given in brackets J. SECTION A (Attempt all questions from this Section.) Question 1 Choose the correct answers tothe questions from the given options. answers only.) (Do not copy the question, write the correct by Sulphide ore is generally concentrated [1S] (a) Hvdrolytic method (b) Magi ue separaton () Froth floatation (d) calcination The resulting ester when ethyl alcohol and acetic acid are mixed together (ii) (iii) (b) CzHsCOOCHs (6 CH;CO0C,Hs (d) C;H_COOCH; CH;COOCH; (a) placed in four different salt solutions as given below. Which of the solution A strip of copper is will finally turn ( blue ZnNO3)2 (c)( Ca(NO3)2 (d) AgNO3 (a) KNO3 (b) whichis amphoteric in nature metallic oxide Identifythe Barium Oxide (c) Zinc oxide (d) copper(II) oxide Calcium oxide (b) (a) The two main metals in bronze are (a) Cu, Zn(b) Cu, Pb (c) Cu, Ni (d) Cu, Sn (V) The metal which does not react with dil.H;SO4 (a) Mg (b) Al (c) Zn (d) Hg (vii) The salt which in solution gives apale green precipitate with sodium hydroxide solution and a white precipitate with barium chloride solution (a) FeSO. (b) Fez(SO:)s (c)FeCl; (d) FeCl: (ii) Among rubidium,potassium, lithium and sodium which has least ionisation potentia! (a) Rubidium (b) Potassium (c) Lithium (d) Sodium (ik) Ammonium chloride is a soluble salt prepared by (8) Neutralisation (b) Precipitation (c) Direct combination (d) Displacement reaction (x) A covalent compound which in aqueous state conducts electricity (ayNH, (b) CCl (c) CS: (d) CH: (x) Anelement form an oxide A;O,.What willbe the formula of thechloride of A (a) ACI; (b) ACl(c) AaCi, ( ) ACIs (x)Element Xforms achloride with the formula XCl,hich ta solid with high melting point.X would most likely be in the same group of the periodic table as (a) Sodium (b} Magnesium (c)Aluminium (d) Silicon (xi) The empirical formula of acetic acid is (a) CzHO (b) CzH;0 (c) CH;0: (d)CH;0 (xi) The category of compounds which liberate ammonia on reaction with water (a) Nitrates (b) Nitrites (c) Sulphates (d) Nitrides ( The organic compound having triple carbon-carbon covalent bond is (ajCsHs (b) CsHs (c) CsHs (d) CaH:o 2 [S] ofexample an ,alkanes) .(alkenes .(nickel, iron) Conc.HSO. is (a) (H (d) The The (c) air of absence the in oxide he T (e) 1S. case water. each in soluble in word is a which dowm (ii) An The which (5] ..solution solution. form to dil.H;SO, water (b) (c) (d) Some (iii) WhenWhen WhenWhen (a) decomposition) Select product to is Write in mass converted dissolves (v) Zinc sulphate from (iv) lead nitrate a litmus. like above form .gas are: of ice which are salts to from action neutral 1s turn carbonates oxygen ethanean of forms of: will turn oxide salts preparation reactions with brackets the to solidifed will displace folloWing in solution correctly ethene specially burns by tested solution characteristics in ethene ...<(dehydration, dehydra genation) .(roasting, calcinatioD) will laboratory powder of given is litmus when statements the conversion product form.it ores litmus of choices metal which the a certain (Double preparation will sulphate Ammonium (i) the (acetic acid, acetaBdehyde) of the combination Direct D. the carbonate Calcium (ii) chloride ethanol are form followingmetal it reactive Acid Carbonate+ B. for the compound the metal reactions metal of which Precipitation non used in Acid Metal+ A. thesolution with used of (IIlI) of in a a a a Titration E. by completes method blanks is is is is methods Conversion Substitution process 'E organic Iron catalyst E' 'E E' E' aqueous element (ii) C. the the in Question 2 Fill (i) formula structural different bond litmus white red turnsagives "B' AgNO; sunlight whichsolution of presence gaspungent with when NHOH solution, acid organic 'A' excess in halogenationagivestreatedsolution chlorine. covalentand formula but throughethene in with of soluble heatedsolution simplest the molecular betweenonchloroform NaOHsalt atoms formed The formation of the the Identify [S] C for same carbon form the is andCequation which having productwhichofname,whenaqueous A A from from of C',A,B solid following oflinking compound IUPAC A Compoundsaddition self blue. precipitateWrite B(i) (ii) the white The The A Name The paper (1) (2) (a) (b) (c) (d) (e) A (v) (iv) [6] under as is G questions.,)and G and [4] acid weak concentrated discharged. awhen electricity. a get is acidindicator not Yet does acetic ion. of conductorordinary ion E metals between whereas chloride hydroxyl diagram E.F formednongood acidan than elenents SECTION B thanvaluesthe and dot four F series a strong metals electron meaningful electrolysis, of compound moleculeG be affinity any three to activity andas likelya (Attempt as (2,8,7) G an considered of electron G atoms by thetheEbetween more to andis ofF angG following thesubject in of E.F is zeroinlower is formula molecule of indicator bonding ; arrangement bonding elements F is is F(2,6) E, acid have the is HCl amongst ion the Hydrochloric gases of the of down of the for universal ; solution type type reasons Hydroxyl 1) Represent electron Classify Noble (2,8,8, WhatWriteWhat Which 3Question Give A The (a) (b)(c) (d)(e) (t) (a)(b) (c) (d) E (i) (i)) gas heatingA (3] heating. colourless on and strong Cthe nitrate AmmoniBum. A, residue a from on gives residue observations ChooseA (a) (b)A (i) (a) of molecular 38.27% hydrogen, its and of acid )P-31 2.47% this 0-16, formula H-1, of composition ( 162 enmnirical percentage [4] or dilute the of is each it whetherto relevant on is depending which on acid depending sulphuric property D) of or C, properties (A,B, the (b) (c) concentrated. preparation Non oxide coppersulphur from from chlorideethanol sulphate dioxide from agent Dehydrating (d) hydrogen summarise acid agent Oxidising ethenecoppersulphur Choose(4) volatile to acid Dilute (a) (1) of1.Preparation of of of 2.Preparation 4.Preparation 3.Preparation D o1 phosphorus and formula B,C acid 5Question An A, (i)) (") following mass and the any yellow heating CFind molecular following behind the nitrate nitrate nitrate oxygen. Strongan for following leave behindequations relative sodium Lead Lead the not of has on 59.26% B- the melts leaves the on on does phosphorus balanced for heat heat that nitrate which salt which which(c) and given of of Sodium the ActionAction salt salt salt A Write (b) 4Question A- () in the copper and sulphate sodium be first clectrolysed wil cation which lectrode latinum solution sulphate using ctrolysed presentcontains is ethene and ethane between distinguish test to 2 2-bromopropae and acid of the of followingpropanoic compounds from Question 6 for the following equations the balanced Write preparations name formula bromoethane bromoethane iodomethane from (ii) ( i) (i) Question-7 (iv) (a) An (b) Write Name aqueous (e) ( (a) Write (i) Write CH,(CH-CH-CHO i) When ethene Ethane from EthanolMethane Ethene the the the chemical a 4,-C-CH; the CH; CH, IUPACstructural solution cationsolution from non metal metal affinity energy size (b) (d) (c) With With With the is is the highest the the highest highest most most electron ionisation atomic elecronegativity reactive reactive (e) Which Which () of element out to Ne),pick (Li thie period second (ii) (a) Among With the the elements largest Pro the solution? of what is the nature red to of from litmus colour the change 7 (b) (a) [3) dioxide (b) the mass phosphorus at stp used acid calculate formed completely, acid nitric [4] under warming the voiume (2] in [1] a formula? of this contained is is is acid C3H,COOH. of is gas? its molecu'ar What 32.What is at of stp, a of compound what butanoic gas density of formula gas (iv) (iii) jar the The in vapour the molecular form weight?If1.6g its empirical as on +5NO2H0+ acid H;PO4 reacts concentrated with react (1) Question-8 (a) If9.3g Phosphorus 5HNO3P+ the mass of of of phosphoric nitric of produced ,0-16] how you would , nitrogen , H-1 of N-14 7. Explain (c) [P-31 Volume )A has its its pH PH a pH blue, a increasesolution decrease solution(i) If 20 X 20 Gas molecules Number of 10 Volume (litres) AmmoniaChlorine Nitrogen Sulphur dioxide for the not cathode dioxide which table .You andtakeplace cathode which have nitrogen at gives to the are collected volume the table of under gases giving same collected the conditions number and [3] the of of complete is cation discharged at the reaction of of following ammoniaX ammonia,sulphur in in 20litre termns Copy gases (X) (d) (c) The in ofgases Write Why t h e molecules and the the other chlorine, pressure. equation other temperature number (ii) molecule dil.HCI reactions for the following Conc cold equations dil. with H;SO4 HNOs carbonate () (ii) (b) (a) Write CopperSodium Carbon the withbalanced with

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