{"id":8249,"date":"2024-02-23T07:49:00","date_gmt":"2024-02-23T02:19:00","guid":{"rendered":"https:\/\/www.aplustopper.com\/?p=8249"},"modified":"2024-02-23T15:58:56","modified_gmt":"2024-02-23T10:28:56","slug":"practical-chemistry-icse-solutions-class-10-chemistry","status":"publish","type":"post","link":"https:\/\/www.aplustopper.com\/practical-chemistry-icse-solutions-class-10-chemistry\/","title":{"rendered":"ICSE Solutions for Class 10 Chemistry – Practical Chemistry"},"content":{"rendered":"
ICSE Solutions<\/a>Selina ICSE Solutions<\/a><\/p>\n APlusTopper.com provides ICSE Solutions for Class 10 Chemistry Chapter 12 Practical Chemistry for ICSE Board Examinations. We provide step by step Solutions for ICSE Chemistry Class 10 Solutions Pdf.\u00a0You can download the Class 10 Chemistry ICSE Textbook Solutions with Free PDF download option.<\/p>\n Download Formulae Handbook For ICSE Class 9 and 10<\/a><\/p>\n Question 1:<\/strong> Name the three ions which can be identified by K4<\/sub>[Fe(CN)6<\/sub>] solution. Question 2:<\/strong> State the colour of the following : Question 3:<\/strong> Mention the colour changes observed when the following indicators are added to acids : Question 4:<\/strong> Identify the anion present in the following compounds : Question 5:<\/strong> Identify the substances P, Q, R, S and T in each case based on the information given below: Question 6:<\/strong> Select from the list given (A to E) one substance in each case which matches the description given in parts (i) to (v). (Note: Each substance is used only once in the answer.) Question 7:<\/strong> The questions (i) to (v) refer to the following salt solutions listed A to F: Question 8:<\/strong> A white crystalline solid A on dissolving in water forms a neutral solution. When solid A is heated with calcium hydroxide, it gives off colourless gas B having a sharp biting smell. The gas fumes very strongly in air and turns red litmus blue. The aqueous solution of A on treating with lead acetate solution forms a white precipitate C. The precipitate is insoluble in all acids. Question 9:<\/strong> Identify the following solids. Question 10:<\/strong> Identify the cations and anions in each case and write relevant equations wherever necessary. Question 1:<\/strong> Salts A, B, C, D and E undergo reactions (i) to (v) respectively. Identify the anion present in these salts on the basis of these reactions. Tabulate your answers in the format given below :Short Questions<\/span><\/h3>\n
\nAnswer:<\/strong> Fe3+<\/sup>, Z2+<\/sup>, Cu2+<\/sup><\/p>\n
\n(i) Lead monoxide (h) Hat zinc oxide
\n(iii) Copper carbonate (iv) Copper nitrate crystals
\nAnswer:<\/strong> (i) Lime yellow (ii) Yellow
\n(iii) Emerald green (iv) Deep blue<\/p>\n
\n(i) Alkaline phenolphthalein solution (ii) Methyl orange solution
\n(iii) Neutral litmus solution
\nAnswer:<\/strong> (i) From pink to colourless (ii) From orange to pink (red)
\n(iii) From colourless to red<\/p>\n
\n(i) Compound X on heating, with copper turnings and concents sulphuric acid liberates a reddish brown gas.
\n(ii) When a solution of compound Y is treated with silver nitrate solution a white precipitate is obtained which is soluble in excess of ammonium hydroxide solution.
\n(iii) Compound Z which on reacting with dilute sulphuric acid liberates a gas which lime lune water milky, but the gas has no effect on acidified potassium dichromate solution.
\n(iv) Compound L on reacting with barium chloride solution gives a white precipitate insoluble in dilute hydrochloric acid or dilute nitric acid.
\nAnswer:<\/strong> (i) Nitrate ion, NO3<\/sub>–<\/sup> (ii) Chloride ion, Cl–<\/sup>
\n(iii) Carbonate ion, CO3<\/sub>–<\/sup> (iv) Sulphate ion, SO4<\/sub>2-<\/sup><\/p>\n
\n(i) The deliquescent salt P, turns yellow on dissolving in water, and gives a reddish brown precipitate with sodium hydroxide solution.
\n(ii) The white crystalline solid Q is soluble in water. It liberates a pungent smelling gas when heated with sodium hydroxide solution.
\n(iii) The pale green solid R turns reddish brown on heating. Its aqueous solution gives a white precipitate with barium chloride solution. The precipitate is insoluble in mineral acids.
\n(iv) The reddish brown liquid S is dissolved in water. When Ethyne gas is passed through it, turns colourless.
\nAnswer:<\/strong> (i) Hydrogen chloride gas (ii) Nitric oxide (iii) Oxygen (iv) Ammonia<\/p>\n
\n(A) Nitroso Iron(II) sulphate (B) Iron(III) Chloride (C) Chromium sulphate (D) Lead(II) Chloride (E) Sodium chloride.
\n(i) A compound which is deliquescent.
\n(ii) A compound which is insoluble in cold water, but soluble in hot water.
\n(iii) The compound responsible for the brown ring during the brown ring test of nitrate ion.
\n(iv) A compound whose aqueous solution is neutral in nature.
\n(v) The compound which is responsible for the green colouration when sulphur dioxide is passed through acidified potassium dichromate solution.
\nAnswer:<\/strong> (i) B, Iron (III) chloride
\n(ii) D, Lead (II) chloride
\n(iii) A, Nitroso Iron (II) sulphate
\n(iv) E, Sodium chloride
\n(v) C, Chromium sulphate<\/p>\n
\nA. Copper nitrate B. Iron (II) sulphate.
\nC. Iron (III) chloride D. Lead nitrate
\nE. Magnesium sulphate F. Zinc chloride.
\n(i) Which two solutions will give a white precipitate when treated with dilute Hydrochloric acid followed by Barium chloride solution ?
\n(ii) Which two solutions will give a white precipitate when treated with dilute Nitric acid followed by Silver nitrate solution ?
\n(iii) Which solution will give a white precipitate when either dilute Hydrochloric acid or dilute Sulphuric acid is added to it ?
\n(iv) Which solution becomes a deep \/inky blue colour when excess of Ammonium hydroxide is added to it ?
\n(v) Which solution gives a white precipitate with excess Ammonium hydroxide solution ?
\nAnswer:<\/strong> (i) B and E (Iron II sulphate and magnesium sulphate).
\n(ii) C and F (Iron III chloride and zinc chloride)
\n(iii) D (lead nitrate)
\n(iv) A (copper nitrate)
\n(v) F (zinc chloride)<\/p>\n
\n(i) Name the cation present in solid A.
\n(ii) Name the anion present in solid A.
\n(iii) Name the solid A and write its chemical formula.
\n(iv) Name the colourless gas B.
\n(v) Write one more chemical test for the identification of gas B.
\n(vi) Name the white precipitate C.
\n(vii) Write fully balanced chemical equations for:
\n(a) Solid A and calcium hydroxide.
\n(b) Solution of solid A and lead acetate solution.
\nAnswer:<\/strong> (i) Cation in A is ammonium (NH4<\/sub>+<\/sup>)
\n(ii) Anion in A is sulphate (SO4<\/sub>2-<\/sup> )
\n(iii) Solid A is ammonium sulphate [(NH4<\/sub>)2<\/sub>SO4<\/sub>]2<\/sub>
\n(iv) The colourless gas B is ammonia gas.
\n(v) Bring a rod dipped in HCl sol. near the gas. The dense white fumes of ammonium chloride are formed.
\n(vi) White precipitate C is lead sulphate.
\n(vii)
\n(a) (NH4<\/sub>)2<\/sub>SO4<\/sub> + Ca(OH)2\u00a0 \u00a0<\/sub>\u27f6 \u00a0CaSO4<\/sub> + 2NH3<\/sub> + 2H2<\/sub>O
\n(b) (NH4<\/sub>)2<\/sub>SO4<\/sub> + (CH3<\/sub>COO)2<\/sub>Pb \u00a0\u27f6 \u00a0PbSO4<\/sub> + 2CH3<\/sub>COONH4<\/sub><\/p>\n
\n(i) A silvery white solid which floats on the surface of water and reacts violently to give tiny bubbles of a colourless gas. The gas burns in air with a pop sound. The chloride of solid gives a non-persistent lilac colour to non-luminous bunsen flame.
\n(ii) A pale yellow compound gives a persistent golden yellow colour in non-luminous bunsen burner flame. When treated with water, it liberates a colourless gas, which burns with a pop sound.
\n(iii) A white solid on treating with water gives off a colourless gas which has a sharp biting smell and turns red- litmus blue. The white solid formed after the reaction is soluble in cone, sodium hydroxide solution.
\nAnswer:<\/strong> (i) The solid is potassium metal (ii) The solid is sodium hydride
\n(iii) The solid is aluminium nitride<\/p>\n
\n(i) A white crystalline solid on heating swells and gives off colourless vapours, which condense to form a colourless liquid X. The X turns anhydrous copper sulphate solution blue. The flame test shows the flame as persistent golden yellow. When the solution of solid is treated with HCl, it gives off a colourless gas Y which turns lime water milky.
\n(ii) A blue solid gives a non-persistent green flame during the flame test. When the solid is heated strongly, it leaves behind a white residue. The residue on treating with few drops of water changes to blue colour.
\n(iii) A white solid gives a non-persistent brick red flame. On treating with dilute sulphuric acid, it gives off a colourless gas which turns acidified potassium dichromate solution green.
\n(iv) A white solid gives a non-persistent black colour. On treating with dilute sulphuric acid, it gives off a highly offensive smell. The gas turns lead acetate paper black.
\nAnswer:<\/strong>
\n<\/p>\nFigure\/Table Based Questions<\/span><\/h3>\n
\n(i) When silver nitrate solution is added to a solution of A, a white precipitate, insoluble in dilute nitric acid, is formed.
\n(ii) Addition of dilute hydrochloric acid to B produces a gas which turns lead acetate paper black.
\n(iii) When a freshly prepared solution of ferrous sulphate is added to a solution of C and concentrated sulphuric acid is gently poured from the side of the test-tube, a brown ring is formed.
\n(iv) When dilute sulphuric acid is added to D, a gas is produced which turns acidified potassium dichromate solution from orange to green.
\n(v) Addition of dilute hydrochloric acid to E produces an effervescence. The gas produced turns lime water milky but does not affect acidified potassium dichromate solution.<\/p>\n