{"id":6015,"date":"2023-11-17T10:31:32","date_gmt":"2023-11-17T05:01:32","guid":{"rendered":"https:\/\/icsesolutions.com\/?p=6015"},"modified":"2023-11-18T09:51:34","modified_gmt":"2023-11-18T04:21:34","slug":"icse-previous-papers-solutions-class-10-chemistry-2014","status":"publish","type":"post","link":"https:\/\/icsesolutions.com\/icse-previous-papers-solutions-class-10-chemistry-2014\/","title":{"rendered":"ICSE Chemistry Question Paper 2014 Solved for Class 10"},"content":{"rendered":"
ICSE Paper 2014<\/strong><\/span> (Two Hours)<\/strong><\/em> SECTION-I \u00a0(40 Marks)<\/span><\/strong> Question 1:<\/strong> (b)<\/strong> Fill in the blanks from the choices given within brackets:<\/p>\n (c)<\/strong> Give one word or phrase for the following:<\/p>\n (d)<\/strong> Match the options A to E with the statements (i) to (v): \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 [5]<\/strong><\/p>\n (e)\u00a0<\/strong>Write balanced equations for the following: (f)<\/strong> Distinguish between the following pairs of compounds using the test given within brackets:<\/p>\n (g) (i)<\/strong> Oxygen oxidises ethyne to carbon dioxide and water as shown by the equation: Answer:<\/strong> (b)<\/strong><\/p>\n (c)<\/strong><\/p>\n (d)<\/strong><\/p>\n (e)<\/strong> (g)<\/strong> SECTION-II \u00a0(40 Marks)<\/strong><\/span> Question 2:<\/strong> (b)<\/strong> Study the figure given below and answer the questions that follow: (c)<\/strong><\/p>\n Answer:<\/strong> (b)\u00a0<\/strong><\/p>\n (c)<\/strong><\/p>\n Question 3:<\/strong> (b)<\/strong> State the main components of the following alloys:<\/p>\n (c)<\/strong> Give balanced equations for the following: Answer:<\/strong> (b)<\/strong><\/p>\n (c)<\/strong> Question 4:<\/strong> (b)<\/strong> Draw the structure of the stable positive ion formed when an acid dissolves in water. [2]<\/strong> Answer:<\/strong> Question 5:<\/strong> (b)<\/strong> Give one equation each to show the following properties of sulphuric acid: (c)<\/strong> Give balanced chemical equations to prepare the following salts: Answer:<\/strong> <\/p>\n Question 6:<\/strong>
\nCHEMISTRY<\/strong><\/span><\/p>\n
\nAnswers to this Paper must be written on the paper provided separately.<\/em>
\nYou will not<\/strong> be allowed to write during the first 15<\/strong> minutes.<\/em>
\nThis time is to be spent in reading the Question Paper.<\/em>
\nThe time given at the head of this Paper is the time allowed for writing the answers.<\/em>
\nSection I<\/strong> is compulsory. Attempt any four<\/strong> questions from Section II<\/strong>.<\/em>
\nThe intended marks for questions or parts of questions are given in brackets [ ].<\/em><\/p>\n
\n(Attempt all<\/strong> questions from this Section)<\/em><\/p>\n
\n(a)<\/strong>\u00a0Choose the correct answer from the options given below:<\/p>\n\n
\n(A) Atomic radius increases and nuclear charge increases
\n(B) Atomic radius decreases and nuclear charge decreases
\n(C) Atomic radius increases and nuclear charge decreases
\n(D) Atomic radius decreases and nuclear charge increases.<\/li>\n
\n(A) A crystalline hard structure
\n(B) A low melting point and low boiling point
\n(C) An ionic bond
\n(D) A strong force of attraction between its molecules.<\/li>\n
\n(A) a silver grey deposit at anode and a reddish brown deposit at cathode
\n(B) a silver grey deposit at cathode and a reddish brown deposit at anode
\n(C) a silver grey deposit at cathode and reddish brown fumes at anode
\n(D) silver grey fumes at anode and reddish brown fumes at cathode.<\/li>\n
\n(A) Haematite \u00a0 \u00a0 \u00a0 (B) Calamine
\n(C) Bauxite \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0(D) Cryolite<\/li>\n
\n(A) smelting \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0(B) ore dressing
\n(C) calcination \u00a0 \u00a0 \u00a0 (D) bessemerisation<\/li>\n
\n(A) 3 shells and 2 valence electrons
\n(B) 2 shells and 3 valence electrons
\n(C) 3 shells and 3 valence electrons
\n(D) 2 shells and 2 valence electrons<\/li>\n
\n(A) ammonia \u00a0 \u00a0 \u00a0 \u00a0(B) methane
\n(C) water \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0(D) nitrogen<\/li>\n
\n(A) silver nitrate solution \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 (B) silver cyanide solution
\n(C) sodium argentocyanide solution \u00a0 (D) nickel sulphate solution<\/li>\n
\n(A) it is a strong reducing agent \u00a0 \u00a0 \u00a0 \u00a0(B) it is a strong oxidising agent
\n(C) it is corrosion resistant \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 (D) it is a good conductor of heat<\/li>\n
\n(A) propane \u00a0 \u00a0 \u00a0 \u00a0 (B) propyne
\n(C) ethene \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0(D) ethyne \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 [10]<\/strong><\/li>\n<\/ol>\n\n
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\n\n
\n A<\/td>\n alkynes<\/td>\n (i)<\/td>\n No. of molecules in 22.4 dm3<\/sup> of carbon dioxide at s.t.p.<\/td>\n<\/tr>\n \n B<\/td>\n alkane<\/td>\n (ii)<\/td>\n An element with electronic configuration 2, 8, 8, 3<\/td>\n<\/tr>\n \n C<\/td>\n iron<\/td>\n (iii)<\/td>\n Cn<\/sub>H2n+2<\/sub><\/td>\n<\/tr>\n \n D<\/td>\n 6.023 \u00d7 1023<\/sup><\/td>\n (iv)<\/td>\n Cn<\/sub>H2n-2<\/sub><\/td>\n<\/tr>\n \n E<\/td>\n metal<\/td>\n (v)<\/td>\n The metal that forms two types of ions<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n(i)<\/strong> Action of heat on a mixture of copper and concentrated nitric acid.
\n(ii)<\/strong> Action of warm water on magnesium nitride.
\n(iii)<\/strong> Action of concentrated sulphuric acid on carbon.
\n(iv)<\/strong> Action of dilute hydrochloric acid on sodium sulphide.
\n(v)<\/strong> Preparation of ethane from sodium propionate.\u00a0 \u00a0 \u00a0 \u00a0 [5]<\/strong><\/p>\n\n
\n2C2<\/sub>H2<\/sub> + 5O2<\/sub>\u00a0 \u00a0 \u2192 \u00a0 \u00a04CO2<\/sub> + 2H2<\/sub>0
\nWhat volume of ethyne gas at s.t.p. is required to produce 8.4 dm3 of carbon dioxide at s.t.p.? [H = 1, C = 12, O = 16]
\n(ii)<\/strong> A compound made up of two elements X and Y has an empirical formula X2<\/sub>Y. If the atomic weight of X is 10 and that of Y is 5 and the compound has a vapour density 25, find its molecular formula. [5]<\/strong><\/p>\n
\n (a)<\/strong><\/p>\n\n
\n
\n
\n
\n
\n(f)<\/strong><\/p>\n\n
\nIron III sulphate:<\/strong> Gives reddish brown ppt with ammonium hydroxide insoluble in excess.<\/li>\n
\nZinc salt:<\/strong> Gives gelatenous white ppt which is soluble in excess ammonium hydroxide.<\/li>\n
\nSodium sulphite:<\/strong> Colourless, gas with smell of burning sulphur, acidic in nature that is sulphur di oxide is released.<\/li>\n
\n<\/p>\n
\n(Answer any four<\/strong> questions from this section)<\/em><\/p>\n
\n (a)<\/strong> State your observation in each of the following cases:<\/p>\n\n
\n<\/p>\n\n
\n
\n (a)<\/strong><\/p>\n\n
\n
\n
\n (a)<\/strong> State the conditions required for the following reactions to take place:<\/p>\n\n
\n
\n(i)<\/strong> Laboratory preparation of nitric acid.
\n(ii)<\/strong> Preparation of ethanol from monochloroethane and aq. sodium hydroxide. [2]<\/strong><\/p>\n
\n (a)<\/strong><\/p>\n\n
\n
\n<\/p>\n
\n(a)<\/strong> Give the structural formula of the following:
\n(i)<\/strong> ethanol.
\n(ii)<\/strong> 1-propanal
\n(iii)<\/strong> ethanoic acid
\n(iv)<\/strong> 1, 2, dichloroethane. \u00a0 \u00a0 \u00a0 \u00a0\u00a0[4]<\/strong><\/p>\n
\n(c)<\/strong> State the inference drawn from the following observations: \u00a0 \u00a0 \u00a0[4]<\/strong><\/p>\n\n
\n
\n(c)<\/strong><\/p>\n\n
\n (a)<\/strong> Name the following:<\/p>\n\n
\n(i)<\/strong> Dehydrating property.
\n(ii)<\/strong> Acidic nature.
\n(iii)<\/strong> As a non-volatile acid. [3]<\/strong><\/p>\n
\n(i)<\/strong> Lead sulphate from lead carbonate.
\n(ii)<\/strong> Sodium sulphate using dilute sulphuric acid.
\n(iii)<\/strong> Copper chloride using copper carbonate. [3]<\/strong><\/p>\n
\n (a)<\/strong><\/p>\n\n
\n (a) (i)<\/strong> State Avogadro\u2019s law.
\n(ii)<\/strong> A cylinder contains 68g of ammonia gas at s.t.p.<\/p>\n\n