{"id":211881,"date":"2025-05-05T09:13:16","date_gmt":"2025-05-05T09:13:16","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=211881"},"modified":"2025-05-05T09:13:18","modified_gmt":"2025-05-05T09:13:18","slug":"it-is-a-type-of-chemical-reaction-wherein-an-element-and-a-compound-reacts-to-form-a-new-element-and-a-new-compound","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/05\/it-is-a-type-of-chemical-reaction-wherein-an-element-and-a-compound-reacts-to-form-a-new-element-and-a-new-compound\/","title":{"rendered":"It is a type of chemical reaction wherein an element and a compound reacts to form a new element and a new compound"},"content":{"rendered":"\n

It is a type of chemical reaction wherein an element and a compound reacts to form a new element and a new compound.
A. single replacement
B. synthesis
C. metathesis
d. double replacement<\/p>\n\n\n\n

The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n

The correct answer is A. single replacement<\/strong>.<\/p>\n\n\n\n

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

A single replacement<\/strong> reaction, also known as a single displacement<\/strong> reaction, is a type of chemical reaction in which an element reacts with a compound, and in the process, one of the elements in the compound is replaced by the free element. As a result, a new element and a new compound are formed.<\/p>\n\n\n\n

The general form of a single replacement reaction is:<\/p>\n\n\n\n

$$
A + BC \\rightarrow AC + B
$$<\/p>\n\n\n\n

Here, element $A$ replaces element $B$ in the compound $BC$, forming a new compound $AC$ and a new free element $B$.<\/p>\n\n\n\n

For example, consider the reaction between zinc and hydrochloric acid:<\/p>\n\n\n\n

$$
\\text{Zn} + 2\\text{HCl} \\rightarrow \\text{ZnCl}_2 + \\text{H}_2
$$<\/p>\n\n\n\n

In this reaction, zinc (Zn), a free element, reacts with hydrochloric acid (HCl) to form zinc chloride (ZnCl\u2082), a new compound, and hydrogen gas (H\u2082), which is the new element released.<\/p>\n\n\n\n

Why it’s a single replacement reaction:<\/h4>\n\n\n\n
    \n
  • In a single replacement reaction, a single element (like Zn) replaces another element (like H) in a compound.<\/li>\n\n\n\n
  • This leads to the formation of a new compound (ZnCl\u2082) and the release of the displaced element (H\u2082 gas).<\/li>\n<\/ul>\n\n\n\n

    Why the other options are incorrect:<\/h3>\n\n\n\n
      \n
    • B. Synthesis<\/strong>: This type of reaction involves the combination of two or more simple substances to form a more complex compound. For example, A + B \u2192 AB.<\/li>\n\n\n\n
    • C. Metathesis<\/strong>: This is another name for a double replacement reaction, where the cations and anions of two compounds are exchanged to form new compounds (e.g., AB + CD \u2192 AD + CB).<\/li>\n\n\n\n
    • D. Double replacement<\/strong>: Involves the exchange of ions between two compounds to form two new compounds, typically in aqueous solutions, but no single element replaces another.<\/li>\n<\/ul>\n\n\n\n

      Thus, the defining characteristic of the single replacement reaction is that an element replaces another element within a compound to form a new compound and a new element.<\/p>\n","protected":false},"excerpt":{"rendered":"

      It is a type of chemical reaction wherein an element and a compound reacts to form a new element and a new compound.A. single replacementB. synthesisC. metathesisd. double replacement The correct answer and explanation is : The correct answer is A. single replacement. Explanation: A single replacement reaction, also known as a single displacement reaction, […]<\/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-211881","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/211881","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=211881"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/211881\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=211881"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=211881"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=211881"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}