{"id":29155,"date":"2023-03-13T03:14:45","date_gmt":"2023-03-12T21:44:45","guid":{"rendered":"https:\/\/icsesolutions.com\/?p=29155"},"modified":"2023-03-14T09:53:15","modified_gmt":"2023-03-14T04:23:15","slug":"new-simplified-chemistry-class-10-icse-solutions-sulphuric-acid","status":"publish","type":"post","link":"https:\/\/icsesolutions.com\/new-simplified-chemistry-class-10-icse-solutions-sulphuric-acid\/","title":{"rendered":"New Simplified Chemistry Class 10 ICSE Solutions – Sulphuric Acid"},"content":{"rendered":"
ICSE Solutions<\/a>Selina ICSE Solutions<\/a>ML Aggarwal Solutions<\/a><\/p>\n Viraf J Dalal Chemistry Class 10 Solutions and Answers<\/strong><\/p>\n Simplified Chemistry<\/a>English<\/a>Maths<\/a>Physics<\/a>Chemistry<\/a>Biology<\/a><\/p>\n QUESTIONS<\/strong><\/span> Question 1.<\/span><\/strong> 2001<\/strong><\/span><\/p>\n Question 1.<\/span><\/strong> Answer:<\/strong><\/span><\/p>\n Question 2.<\/span><\/strong> 2002<\/strong><\/span><\/p>\n Question 1.<\/span><\/strong> State whether the acid used in each case is dilute or concentrated. Question 2.<\/span><\/strong> Answer:<\/strong><\/span><\/p>\n 2003<\/strong><\/span><\/p>\n Question 1.<\/span><\/strong> Question 2.<\/span><\/strong> Question 3.<\/span><\/strong> Answer:<\/strong><\/span><\/p>\n 2004<\/strong><\/span><\/p>\n Question 1.<\/span><\/strong> Question 2.<\/span><\/strong> 2005<\/span><\/strong><\/p>\n Question 1.<\/span><\/strong> Answer:<\/strong><\/span><\/p>\n Question 2.<\/span><\/strong> 2006<\/strong><\/span><\/p>\n Question 1.<\/span><\/strong> Question 2.<\/span><\/strong> Question 3.<\/span><\/strong>
\n2000<\/strong><\/span><\/p>\n
\nWhat do you see when concentrated sulphuric acid is added to copper sulphate 5-water.
\nAnswer:<\/strong><\/span>
\nThe colour of blue crystal of CuSO4<\/sub>.5H2<\/sub>O changes to white amorphous as the compound loses its water of crystallisation.
\n
\nQuestion 2.<\/span><\/strong>
\nName one catalyst used industrially which speeds up the conversion of SO2<\/sub> to SO3<\/sub> in the production of sulphuric acid in the laboratory or industrially. Write the equation for the conversion of sulphur dioxide to sulphur trioxide. Why does this reaction supply energy. What is the name of the compound formed between SO4<\/sub> and sulphuric acid.
\nAnswer:<\/strong><\/span>
\nV2<\/sub>O5<\/sub>; It is exothermic reaction ; oleum.<\/p>\n
\nWrite equations for:<\/strong><\/p>\n\n
\n
\n<\/sub><\/li>\n
\n<\/sub><\/li>\n<\/ol>\n
\nExplain how a reagent chosen from: ammonium hydroxide, barium chloride, sodium chloride, sodium hydroxide, sulphuric acid and nitric acid enables to distinguish between the two acids mentioned there in.
\nAnswer:<\/strong><\/span>
\nBarium chloride can be used to distinguish between sulphuric acid and nitric acid. Out of these two acids only sulphuric acid gives a white precipitate with barium chloride solution.<\/p>\n
\nState the substance\/s reacted with dilute or concentrated sulphuric acid to form the following gases:\u00a0<\/strong><\/p>\n\n
\nAnswer:<\/strong><\/span>
\n(1)<\/strong> Zinc (or any other reactive metal) reacts with dil. H2<\/sub>SO4<\/sub> to give hydrogen.
\nZn (s) + H2<\/sub>SO4<\/sub> (aq.) \u2192 ZnSO4<\/sub> (aq.) + H2<\/sub>(g)
\n(2)<\/strong> Sodium carbonate reacts with dil. H2<\/sub>S04<\/sub> to give C02
\n<\/sub>Na2<\/sub>C03<\/sub>(s) + H2<\/sub>SO4<\/sub>(aq.) \u2192 Na2<\/sub>SO4<\/sub>(aq.) + H2<\/sub>O(l) + CO2<\/sub>(g)
\nThe above reaction can also be carried out with NaHCO3<\/sub> (sodium bicarbonate) or KHCO3<\/sub> (potassium bicarbonate)<\/p>\n
\nWrite the equations for the laboratory preparation of:<\/strong><\/p>\n\n
\n
\nState the name of the process by which H2<\/sub>SO4<\/sub> is manufactured. Name the catalyst used.
\nAnswer:<\/strong><\/span>
\nBy Contact process \u2014 vanadium pentoxide (V2<\/sub>O5<\/sub>)<\/p>\n
\n\u201cConcentrated sulphuric acid is used in the laboratory preparation of nitric acid and hydrochloric acid because it is………. (less volatile \/ stronger) in comparison to these two acids.\u201d
\nAnswer:<\/strong><\/span>
\nLess volatile<\/p>\n
\nWrite the equations for the laboratory preparation of the following salts using sulphuric acid:<\/strong><\/p>\n\n
\n
\nName the catalyst which helps in the conversion of sulphur dioxide to sulphur trioxide.
\nAnswer:<\/strong><\/span>
\nPlatinum or Vanadium pentoxide.<\/p>\n
\nIn the Contact process, sulphur trioxide is not converted to sulphuric acid by reacting it with water. Instead a two- step procedure is used. Write the equations for the two steps involved.
\nAnswer:<\/strong><\/span>
\nThe equations for the two steps involved are:
\n<\/strong><\/p>\n
\nWrite balanced equations for the following:
\n<\/strong><\/p>\n\n
\n
\n<\/sub><\/li>\n
\nChoose the property of sulphuric acid (A, B, C or D), which is relevant to each of the preparations
\n(1) to (2) : A: dil. acid (typical acid properties), B: Non-volatile acid, C: Oxidizing agent, D: Dehydrating agent. Preparation of
\n(1) HCl
\n(2) ethene from ethanol
\n(3) copper sulphate from copper oxide.
\nAnswer:<\/strong><\/span><\/p>\n\n
\nName the process used for the large scale manufacture of sulphuric acid.
\nAnswer:<\/strong><\/span>
\nContact process.<\/p>\n
\nWhich property of sulphuric acid accounts for its use as a dehydrating agent.
\nAnswer:<\/strong><\/span>
\nSulphuric acid removes water of crystallization.<\/p>\n
\nH2<\/sub>SO4<\/sub> is an oxidizing agent and a non volatile acid. Write an equation for each property.
\nAnswer:<\/strong><\/span><\/p>\n\n
\nC + 2H2<\/sub> SO4<\/sub> \u2192 CO2<\/sub> + 2SO2<\/sub> + 2H2<\/sub>O<\/li>\n
\n
\n<\/strong><\/li>\n<\/ol>\n