{"id":254608,"date":"2025-07-12T15:46:52","date_gmt":"2025-07-12T15:46:52","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=254608"},"modified":"2025-07-12T15:46:54","modified_gmt":"2025-07-12T15:46:54","slug":"write-the-equation-for-the-reduction-of-propene-to-propane-using-a-transition-metal-catalyst","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/12\/write-the-equation-for-the-reduction-of-propene-to-propane-using-a-transition-metal-catalyst\/","title":{"rendered":"Write the equation for the reduction of propene to propane using a transition metal catalyst"},"content":{"rendered":"\n

Write the equation for the reduction of propene to propane using a transition metal catalyst. Group of answer choices A. CH2CHCH3 + H2 + Pt —> CH3CH2CH3 + Pt B. CH2CHCH3 + Pt —> CH3CH2CH3 + Pt C. CH2CHCH3 + H2 + Pt —> CH3CH2CH3 D. CH2CHCH3 + H2 + Pt —> CH3CHCH3 + Pt E. CH2CHCH3 + H2 \u00e2\u2020\u2019 CH3CH2CH3<\/p>\n\n\n\n

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

The correct equation for the reduction of propene (C3H6) to propane (C3H8) using a transition metal catalyst is:<\/p>\n\n\n\n

C. CH2CHCH3 + H2 + Pt —> CH3CH2CH3<\/strong><\/p>\n\n\n\n

Explanation:<\/h3>\n\n\n\n

In this reaction, propene (C3H6)<\/strong> is a alkene<\/strong> containing a carbon-carbon double bond (C=C). The reaction involves hydrogenation<\/strong>, where hydrogen gas (H2) is added across the double bond to convert the alkene into an alkane. This is a common reaction in organic chemistry, typically facilitated by a transition metal catalyst<\/strong>, like platinum (Pt)<\/strong>, which helps to speed up the reaction without being consumed in the process.<\/p>\n\n\n\n

Here\u2019s a step-by-step breakdown of the process:<\/p>\n\n\n\n

    \n
  1. Hydrogenation of Propene:<\/strong>
    The double bond in propene reacts with hydrogen (H2)<\/strong>, breaking the bond and allowing each carbon atom in the double bond to bond with one hydrogen atom. This results in the formation of propane (C3H8)<\/strong>, a saturated alkane.<\/li>\n\n\n\n
  2. Role of the Platinum Catalyst:<\/strong>
    Platinum (Pt<\/strong>) serves as a heterogeneous catalyst<\/strong>. It provides a surface for the reaction to occur, allowing the hydrogen molecules to dissociate and interact with the propene more easily. Platinum does not change during the reaction; it just facilitates the hydrogen atoms’ interaction with the propene molecule, enabling the addition of hydrogen across the double bond.<\/li>\n\n\n\n
  3. Reaction Conditions:<\/strong>
    The hydrogenation typically requires mild heat<\/strong> and pressure, depending on the conditions, but the platinum catalyst<\/strong> is essential for making the reaction occur at a reasonable rate.<\/li>\n<\/ol>\n\n\n\n

    Why other answers are incorrect:<\/h3>\n\n\n\n
      \n
    • A.<\/strong> Incorrect, because it shows platinum (Pt) being consumed, which is not the case in a catalytic reaction.<\/li>\n\n\n\n
    • B.<\/strong> Incorrect, because it doesn’t show the hydrogen (H2) that is necessary for the hydrogenation.<\/li>\n\n\n\n
    • D.<\/strong> Incorrect, because this would not be a hydrogenation reaction \u2014 the structure suggests it\u2019s adding hydrogen across the double bond incorrectly.<\/li>\n\n\n\n
    • E.<\/strong> Incorrect, the reaction should be catalytic and require platinum (Pt), and the equation is missing the catalyst.<\/li>\n<\/ul>\n\n\n\n

      Thus, the correct answer is C<\/strong>, where propene<\/strong> is reduced to propane<\/strong> using hydrogen<\/strong> and a platinum catalyst<\/strong>.<\/p>\n\n\n\n

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

      Write the equation for the reduction of propene to propane using a transition metal catalyst. Group of answer choices A. CH2CHCH3 + H2 + Pt —> CH3CH2CH3 + Pt B. CH2CHCH3 + Pt —> CH3CH2CH3 + Pt C. CH2CHCH3 + H2 + Pt —> CH3CH2CH3 D. CH2CHCH3 + H2 + Pt —> CH3CHCH3 + Pt […]<\/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-254608","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/254608","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=254608"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/254608\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=254608"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=254608"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=254608"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}