{"id":166492,"date":"2024-11-13T18:10:20","date_gmt":"2024-11-13T18:10:20","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=166492"},"modified":"2024-11-13T18:10:22","modified_gmt":"2024-11-13T18:10:22","slug":"which-of-the-following-is-an-exchange-reaction","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/11\/13\/which-of-the-following-is-an-exchange-reaction\/","title":{"rendered":"Which of the following is an exchange reaction"},"content":{"rendered":"\n

Which of the following is an exchange reaction? a. HCl + NaOH NaCl + H\u2082O b. dehydration c. C\u2086H\u2081\u2082O\u2086+C\u2086H\u2081\u2082O\u2086\u2192C\u2081\u2082H\u2082\u20840\u2081\u2082 d. hydrolysis<\/p>\n\n\n\n

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

The correct answer is a. HCl + NaOH \u2192 NaCl + H\u2082O<\/strong>.<\/p>\n\n\n\n

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

An exchange reaction<\/strong>, also known as a double displacement reaction<\/strong>, involves the exchange of components between two compounds, typically forming a precipitate, gas, or water. In this case, hydrochloric acid (HCl) reacts with sodium hydroxide (NaOH) to form sodium chloride (NaCl) and water (H\u2082O), which is a typical example of an exchange reaction. The general form of an exchange reaction is:<\/p>\n\n\n\n

[ AB + CD \\rightarrow AD + CB ]<\/p>\n\n\n\n

In this reaction:<\/p>\n\n\n\n

    \n
  • HCl dissociates into H\u207a and Cl\u207b ions.<\/li>\n\n\n\n
  • NaOH dissociates into Na\u207a and OH\u207b ions.<\/li>\n\n\n\n
  • The H\u207a from HCl combines with the OH\u207b from NaOH to form water (H\u2082O), while Na\u207a from NaOH combines with Cl\u207b from HCl to form NaCl.<\/li>\n<\/ul>\n\n\n\n

    Thus, both positive and negative ions are exchanged between the two reactants.<\/p>\n\n\n\n

    Breakdown of the Other Options:<\/h3>\n\n\n\n
      \n
    • b. Dehydration<\/strong>: A dehydration reaction is a type of chemical reaction in which water is removed from a molecule, usually to form a more complex compound. This is not an exchange reaction, but rather a specific type of condensation reaction. For example, the formation of an ester from an alcohol and an acid through the removal of water.<\/li>\n\n\n\n
    • c. C\u2086H\u2081\u2082O\u2086 + C\u2086H\u2081\u2082O\u2086 \u2192 C\u2081\u2082H\u2082\u2084O\u2081\u2082<\/strong>: This is a condensation reaction<\/strong>, specifically a synthesis<\/strong> reaction, where two molecules (glucose in this case) combine to form a larger molecule, maltose, with the release of water. It’s not an exchange reaction since there is no swapping of ions or components between separate reactants.<\/li>\n\n\n\n
    • d. Hydrolysis<\/strong>: A hydrolysis reaction involves the breakdown of a compound by water. Water is added to break bonds, which is the opposite of a dehydration reaction. It doesn\u2019t involve an exchange of ions but rather the addition of water to a compound.<\/li>\n<\/ul>\n\n\n\n

      In summary, option a<\/strong> (HCl + NaOH \u2192 NaCl + H\u2082O) is the correct answer because it is an exchange reaction, where the ions of the two reactants are exchanged to form new products.<\/p>\n","protected":false},"excerpt":{"rendered":"

      Which of the following is an exchange reaction? a. HCl + NaOH NaCl + H\u2082O b. dehydration c. C\u2086H\u2081\u2082O\u2086+C\u2086H\u2081\u2082O\u2086\u2192C\u2081\u2082H\u2082\u20840\u2081\u2082 d. hydrolysis The Correct Answer and Explanation is : The correct answer is a. HCl + NaOH \u2192 NaCl + H\u2082O. Explanation: An exchange reaction, also known as a double displacement reaction, involves the exchange of […]<\/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-166492","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/166492","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=166492"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/166492\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=166492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=166492"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=166492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}