{"id":225497,"date":"2025-06-04T09:11:11","date_gmt":"2025-06-04T09:11:11","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=225497"},"modified":"2025-06-04T09:11:14","modified_gmt":"2025-06-04T09:11:14","slug":"sucrose-c12h22o11-classify-each-of-the-reactions-given-below-as-one-of-the-following","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/04\/sucrose-c12h22o11-classify-each-of-the-reactions-given-below-as-one-of-the-following\/","title":{"rendered":"Sucrose (C12H22O11) Classify each of the reactions given below as one of the following"},"content":{"rendered":"\n

Sucrose (C12H22O11) Classify each of the reactions given below as one of the following: Precipitation, acid-base, acid-base with gas formation, oxidation-reduction (redox). Reaction Classification Mg(s) + 2HCl(aq) \u00e2\u2020\u2019 MgCl2(aq) + H2(g) KOH(aq) + HNO3(aq) \u00e2\u2020\u2019 H2O(l) + KNO3(aq) MgCO3(s) + 2HCl(aq) \u00e2\u2020\u2019 3MgCl2(aq) + CO2(g) + H2O(l) 2KI(aq) + Pb(NO3)2(aq) \u00e2\u2020\u2019 PbI2(s) + 2KNO3(aq) List the specific safety precautions given for this.<\/p>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

Here’s the classification<\/strong> of each given reaction and an explanation, along with relevant safety precautions<\/strong>.<\/p>\n\n\n\n

\n\n\n\n

Reaction Classification:<\/strong><\/h3>\n\n\n\n
    \n
  1. Mg(s) + 2HCl(aq) \u2192 MgCl\u2082(aq) + H\u2082(g)<\/strong>
    Type:<\/strong>Oxidation-Reduction (Redox)<\/strong>\n
      \n
    • Magnesium is oxidized (0 to +2), and hydrogen is reduced (+1 to 0).<\/li>\n<\/ul>\n<\/li>\n\n\n\n
    • KOH(aq) + HNO\u2083(aq) \u2192 H\u2082O(l) + KNO\u2083(aq)<\/strong>
      Type:<\/strong>Acid-Base Reaction<\/strong>\n
        \n
      • A classic neutralization between a strong base and a strong acid.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
      • MgCO\u2083(s) + 2HCl(aq) \u2192 MgCl\u2082(aq) + CO\u2082(g) + H\u2082O(l)<\/strong>
        Type:<\/strong>Acid-Base with Gas Formation<\/strong>\n
          \n
        • Acid reacts with carbonate to form salt, water, and carbon dioxide gas.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
        • 2KI(aq) + Pb(NO\u2083)\u2082(aq) \u2192 PbI\u2082(s) + 2KNO\u2083(aq)<\/strong>
          Type:<\/strong>Precipitation Reaction<\/strong>\n
            \n
          • Formation of yellow solid PbI\u2082 from aqueous ions.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n
            \n\n\n\n

            Safety Precautions for Each Reaction:<\/strong><\/h3>\n\n\n\n
              \n
            1. Handling Acids and Bases (HCl, HNO\u2083, KOH):<\/strong>\n
                \n
              • Always wear safety goggles<\/strong>, lab coat<\/strong>, and gloves<\/strong>.<\/li>\n\n\n\n
              • Work under a fume hood<\/strong> when handling concentrated acids.<\/li>\n\n\n\n
              • Never add water to acid; add acid to water if dilution is needed.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
              • Reactions Generating Gas (H\u2082, CO\u2082):<\/strong>\n
                  \n
                • Perform in a well-ventilated area<\/strong> or under a fume hood<\/strong>.<\/li>\n\n\n\n
                • H\u2082 gas is flammable<\/strong>\u2014keep away from open flames or sparks<\/strong>.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                • Handling Solid Reactants and Products (Mg, MgCO\u2083, Pb(NO\u2083)\u2082, PbI\u2082):<\/strong>\n
                    \n
                  • Lead salts are toxic<\/strong>\u2014avoid inhalation or skin contact.<\/li>\n\n\n\n
                  • Dispose of lead-containing waste according to hazardous waste protocols<\/strong>.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                  • General Lab Safety:<\/strong>\n
                      \n
                    • Do not ingest chemicals.<\/strong><\/li>\n\n\n\n
                    • Wash hands<\/strong> after handling chemicals.<\/li>\n\n\n\n
                    • Know the location of safety showers and eyewash stations<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n
                      \n\n\n\n

                      Explanation<\/strong><\/h3>\n\n\n\n

                      In chemistry, reactions are classified based on the nature of the chemical changes involved. The reaction between magnesium and hydrochloric acid<\/strong> is an oxidation-reduction (redox)<\/strong> reaction. Magnesium is a metal that loses electrons (oxidized), forming Mg\u00b2\u207a, while hydrogen ions (H\u207a) are reduced to hydrogen gas (H\u2082). This type of reaction is also exothermic and produces flammable gas, requiring careful handling.<\/p>\n\n\n\n

                      The reaction between potassium hydroxide and nitric acid<\/strong> is a classic acid-base<\/strong> neutralization. Here, KOH (a base) donates OH\u207b ions, which react with H\u207a ions from HNO\u2083 (an acid) to form water. The salt formed is KNO\u2083. These reactions are typically safe but can still release heat and should be handled with caution.<\/p>\n\n\n\n

                      The reaction of magnesium carbonate with hydrochloric acid<\/strong> is another acid-base reaction, but with gas formation<\/strong>. The carbonate (CO\u2083\u00b2\u207b) reacts with H\u207a to form carbon dioxide (CO\u2082), water, and a salt. The gas evolution makes it more vigorous and possibly messy, necessitating work in a fume hood.<\/p>\n\n\n\n

                      Lastly, the reaction between potassium iodide and lead(II) nitrate<\/strong> results in the formation of a precipitate<\/strong>\u2014lead(II) iodide (PbI\u2082), a bright yellow solid. This is a precipitation reaction<\/strong>, where insoluble PbI\u2082 forms from two soluble ionic compounds. Since lead compounds are toxic, special care must be taken to avoid exposure and properly dispose of the waste.<\/p>\n\n\n\n

                      In all reactions, appropriate personal protective equipment (PPE)<\/strong>, awareness of chemical hazards, and good laboratory practices are essential to ensure safety and accurate results.<\/p>\n\n\n\n

                      \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

                      Sucrose (C12H22O11) Classify each of the reactions given below as one of the following: Precipitation, acid-base, acid-base with gas formation, oxidation-reduction (redox). Reaction Classification Mg(s) + 2HCl(aq) \u00e2\u2020\u2019 MgCl2(aq) + H2(g) KOH(aq) + HNO3(aq) \u00e2\u2020\u2019 H2O(l) + KNO3(aq) MgCO3(s) + 2HCl(aq) \u00e2\u2020\u2019 3MgCl2(aq) + CO2(g) + H2O(l) 2KI(aq) + Pb(NO3)2(aq) \u00e2\u2020\u2019 PbI2(s) + 2KNO3(aq) List […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-225497","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/225497","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=225497"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/225497\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=225497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=225497"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=225497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}