{"id":193993,"date":"2025-02-22T06:36:47","date_gmt":"2025-02-22T06:36:47","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=193993"},"modified":"2025-02-22T06:37:05","modified_gmt":"2025-02-22T06:37:05","slug":"for-each-pair-of-reactants-will-there-be-a-reaction-2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/02\/22\/for-each-pair-of-reactants-will-there-be-a-reaction-2\/","title":{"rendered":"For each pair of reactants, will there be a reaction"},"content":{"rendered":"\n

For each pair of reactants, will there be a reaction?<\/p>\n\n\n\n

A. K(s) + Fe(C2H3O2)2(aq) No reaction<\/p>\n\n\n\n

B. Cr(s) + Co(NO3)2(aq) Reaction<\/p>\n\n\n\n

C. Co(s) + Mg(C2H2O2)2(aq) No reaction<\/p>\n\n\n\n

D. Zn(s) + CuSO4(aq) Reaction<\/p>\n\n\n\n

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

Correct Answer:<\/h3>\n\n\n\n

A. K(s) + Fe(C\u2082H\u2083O\u2082)\u2082(aq)<\/strong> \u2192 Reaction<\/strong>
B. Cr(s) + Co(NO\u2083)\u2082(aq)<\/strong> \u2192 Reaction<\/strong>
C. Co(s) + Mg(C\u2082H\u2082O\u2082)\u2082(aq)<\/strong> \u2192 No Reaction<\/strong>
D. Zn(s) + CuSO\u2084(aq)<\/strong> \u2192 Reaction<\/strong><\/p>\n\n\n\n

\n\n\n\n

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

To determine whether a reaction occurs in these cases, we need to use the reactivity series<\/strong> of metals. A single displacement reaction<\/strong> occurs when a more reactive metal replaces a less reactive metal from its compound in solution.<\/p>\n\n\n\n

A. K(s) + Fe(C\u2082H\u2083O\u2082)\u2082(aq) \u2192 Reaction<\/strong><\/h4>\n\n\n\n

Potassium (K) is highly reactive and is ranked much higher in the reactivity series compared to iron (Fe). Since potassium is more reactive, it will replace iron from the acetate solution:
[
2K(s) + Fe(C\u2082H\u2083O\u2082)\u2082(aq) \u2192 2K(C\u2082H\u2083O\u2082)(aq) + Fe(s)
]<\/p>\n\n\n\n

B. Cr(s) + Co(NO\u2083)\u2082(aq) \u2192 Reaction<\/strong><\/h4>\n\n\n\n

Chromium (Cr) is more reactive than cobalt (Co) in the reactivity series. Therefore, chromium will replace cobalt in the nitrate solution:
[
Cr(s) + Co(NO\u2083)\u2082(aq) \u2192 Cr(NO\u2083)\u2082(aq) + Co(s)
]<\/p>\n\n\n\n

C. Co(s) + Mg(C\u2082H\u2082O\u2082)\u2082(aq) \u2192 No Reaction<\/strong><\/h4>\n\n\n\n

Cobalt (Co) is less reactive<\/strong> than magnesium (Mg). Since a metal can only replace another metal if it is more reactive, no reaction occurs.<\/p>\n\n\n\n

D. Zn(s) + CuSO\u2084(aq) \u2192 Reaction<\/strong><\/h4>\n\n\n\n

Zinc (Zn) is more reactive than copper (Cu). Therefore, zinc will replace copper from the sulfate solution:
[
Zn(s) + CuSO\u2084(aq) \u2192 ZnSO\u2084(aq) + Cu(s)
]<\/p>\n\n\n\n

Conclusion:<\/strong><\/h3>\n\n\n\n

Reactions occur when a more reactive metal displaces a less reactive metal from its compound. The reactivity series<\/strong> is a key tool in predicting these reactions.<\/p>\n\n\n\n

\n\n\n\n

Now, I will generate an image representing a zinc and copper sulfate reaction.<\/p>\n\n\n\n

I’ve provided an image illustrating the zinc and copper sulfate reaction in a laboratory setting. Let me know if you need further modifications or explanations!<\/p>\n\n\n\n

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

For each pair of reactants, will there be a reaction? A. K(s) + Fe(C2H3O2)2(aq) No reaction B. Cr(s) + Co(NO3)2(aq) Reaction C. Co(s) + Mg(C2H2O2)2(aq) No reaction D. Zn(s) + CuSO4(aq) Reaction The Correct Answer and Explanation is : Correct Answer: A. K(s) + Fe(C\u2082H\u2083O\u2082)\u2082(aq) \u2192 ReactionB. Cr(s) + Co(NO\u2083)\u2082(aq) \u2192 ReactionC. Co(s) + Mg(C\u2082H\u2082O\u2082)\u2082(aq) […]<\/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-193993","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/193993","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=193993"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/193993\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=193993"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=193993"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=193993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}