Chemistry - Carbonyl compounds Question with Solution | TestHub

ChemistryCarbonyl compoundsMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasysingle choice

Ammonia forms the complex ion ${[Cu {({NH}_{3})}_{4}]}^{2 +}$ with copper ions in alkaline solution but not in acidic solution. The probable reason for this is

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Answer:

Solution:

${Cu}^{2 +} (aq) + {NH}_{3} (l) + H^{+} (aq) \to {NH}_{4}^{+} (aq) + {Cu}^{2 +} (aq)$

In acidic solution proton coordinates with ammonia molecules to form ${NH}_{4}^{+}$ does not have a lone pair and hence cannot form co-ordination compounds.

Whereas in alkaline solution ${NH}_{3}$ molecules are free to form the complex.

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Carbonyl compoundsSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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