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6. The atomic size on, , s, wer, 92 LE educor ICSE Semester Class x, , ICS, , E, , SAMPLE PAPER, (SEMESTER-1), SOLVED, , , , CHEMISTRY, , Time Allowed One hour, , Maxirnum, , General Instructions: Same instructions as given in the Sample Paper 1, , 1. The clement of period 3 which does not form 7,, , a oxide:, (a) Argon (b) Silicon, () Selenimum (d) Chloride, , 2. Which one of the following is an organic 2, acid? 3, , (@) Formic Acid (b) Acetic acid, () Citric Acid (@) All of above, , 3. Which of the follownig reaction is possible, @ Zn +H,S0,—+ 2nso, + H,, @ Cu+H,S0, —, cuso, +H, 9., © only @ :, (©) only gi, (© Both () and (ji), (@) None of these, , 4. The vapour density of H.0 will be:, , (0) 18 (b) 9 oe, © 86 {d) 48, , 5. A gas which contain double bond is, (0) Oxygen (©) Nitrogen 11,, (© Hydrogen (4) Chiorine, , Moving across a period, (b) decreases, (€) remains same (4) None of these, , (0) incroeses, , Which process is represented is this res, , , , C+0;—-+ co,, (a) Oxidation (b) Reduction, , (c) Redox (d)_ None of these, , With platinum, liberated at, , (a) Cathode, , (b) Audoe, , (©) Hydrogen is not libercted, (@) None of these, , Modern periodic table wos given by, (9) John Newlands, , (b) Autorine Havoisier, , (c) Moeseley, , (d) Mendeleev, , Positively charged hydrogen ator Is ©, , os:, (a) Tritium (b) Duterium, (c) Neutron (d) Proton, , What is not the property of ionic ban?, (Q) Generally exist in solid stote, , (6) High melting and boiling point, (c) Low density, , (d) Soluble in water, , electrodes, hydroge:, , , , , , , , , , , , , , , , , , , , , , , , , , , , , 20,, , 21,, , () 17, @ 18, , When the elermen, electrons, it resuk, (@) Single bond, , () Triple bond, , The molecular mo, iss, , (@) 342 amu, , (©) 90 amu, The device used 1, to electrical ener,, (a) Electrolytic «, {b) Electrocherni, (©) Gatvonizotio, (@) None of the:, , Electronic config, having atomic nm, (e) 2,8,3, , () 2,8,2,3, , The hydroxide, NaOH is:, , (@) Zn(OH),, (©) Fe(OH),, , During siver p, Postassium orge:, the anode mate:, (@) Cu, © Pr, , The green virtuc, {@) Iron sulpha!, (®) Iron chlorid, (©) Copper suk, (d) None of the, , Calcium and col, (9) Are chernio, (©) Have same, {©} Have same, (4) None of ab
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Ygen in 22, |, , a ©) 953 drogen in ie tr 2% "epee trove on sec, ©) lonization atom is: T, , Mbers 19 ©) Electron con, Whose ne num, will © enthalpy a, , atomic number ig” With @ coe — |, , , , , , , , , , , , , , , , , , , , , , @ Single bond) Double bong (0) Fe (&) cur?, —~ (© Triple bond (4) jonic bond Gren @® HW, $5, Themolecular mass of cane sugar (C,H a 24. Which is an insoluble carbonate, 4 12H2704) (2) Na,co, ©) Caco,, (@) 3420mu =) 180 amu (1,00,, @ k,co,, an ( 90 amu (d)_ None of these 25. Thefo, > lowing reaction represents the process, 16, The device used to convert chemical eneryg of 2n —+ Zn"? + 20°, to electrical energy is: i :, ‘5 (a) Oxidation (b) Reduction, _ (a) Electrolytic cell aire aoa, tion {b) Electrochemical cell 2, (©) Galvanization 26. Lanthanoid and Actinoides belongs to:, (@) None of these (a) Representative, (b) Transition, 17, Electronic configuration of an element x ine Pe, F having atomic number 24 is ©. Irmer-tromsttion, , @ 28,3 (e) 2,8,8,6 i Nope ee, © 2,8,2,3 ) 2,8,7,7 27. Which of the following element is more, , 18 The hydroxide which is soluble in excess of reactive than hydrogen?, , Bead ix (a) Cu (b) Hg, (@) Zn(OH), (b) Fe(OH), @ Pt zn, _ aes 28. Metallic oxide having formula M205. What is, 19, During silver plating of an articel using the formula of its nitrate?, Postassium orgentocyanide as an electrolyte, ()_M(NOs)s & MNOS, the anode material should be: eae “nia ee, () cu (b) Ag, Or @),,Fe 29. The ionic compound conduct electricity only, a a The green virtual is known as: . ye oat, ee vtchore {c) Molten (@) Both (b) and (c), — () Iron chloride, 19 Copper sulphote 30. The electrochemical series helps in:, ene treo (@)_ To predict the feasibility of reaction, Calcium and calcium ions: (b) To predict the discharge of hydrogen gas, a) Are chemically same (@ Both (a) and (b) j, Y Have same number eee (d) None of these, , Hive same number of procone, , A we, _— Chemistry Sample Paper 4 %
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32., , , , 33,, , 36., , The acid present in red ant is, (@) Citric acid (@) Toratarie acid, , (©) Formic acid (d) Acetic acid, , For pure water is a:, (0) Electrolyte (b) Non electrolyte, () Strong acid (d) Weak base, , The horizantal column present is periodic, table is named as:, , (a) Period (b) Groups, , (Cc) Blocks (d) None of these, ACIdS OTE ceresne in taste, , (a) Sour (b) Sweet, , (©) Bitter (d) None of these, , An organic compound have molecular, formula CaHie. Its empirical formula will be:, , (2) Crotty. (b) CH, (©) CyHs @) GH,, The vopour density of NH; is:, (o) 14 (b) 85, © 21, , @) None of these, , 37., , , , , , , , , , , , , , , , , , , , , , , , , , , , EPERE, , e |, , , , , , , , , , Study the above table an, question given below:, , (A) The valency of si?, , id answer he, , (a) 4 (b) 2, © 6 (@) 3, , (8) The most metallic character |, represented by:, (a) Na (b) Ui, (© Si (a) |, , (C) Which is the most electronegatir, element? ;, (a) Fluorine (b) Chlorine, (©) Boron (d) Aluminium, , (D) Which type of bond is formed by Na?, (a) Ionic ;, (b) Covalent, , (©) Non covalent, (d) None of these, , “
