13.) Rank the following acids in decreasing (strongest to weakes) order of acidi

Question

13.) Rank the following acids in decreasing (strongest to weakes) order of acidity a.) V>III>I>ll IV c.) IV>III> 14.) Predict the product for the following reaction. Br 1. NaCN 2, H3O heat 15.)Predict the product for the following reaction sequence. Circle your choice. PBr3 2-methyl-1-propanol 2. H30 16.) Predict the product for the following reaction sequence. LiAIH. Mg/ether 2. H2O a.) 2,2-dimethylpropanoic acid b.) 3,3-dimethyl-2-butanone c.) 2,2-dimethyl-1-propanol d.) 2,2-dimethylbutanoic acid e.) none of these 17.) Give the structure of ethyl 3-methylpentanoate none of these

Explanation / Answer

More stable is the conjugate base more strong becomes the acid. Presence of an electronegative atom makes the conjugate base (carboxylate anion in this case) more stable and moreover stability further increases with thr increase in electronegativity (F - Cl - Br - I).hence the correct order is,

Ans - Option - b

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