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Pick the odd one out. (a)Carboxymethyl (CM)

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in Enzyme Technology by (55.0k points)
Pick the odd one out.

(a) Carboxymethyl (CM)

(b) Diethylaminoethyl (DEAE)

(c) Sulphopropyl (SP)

(d) Methyl sulphonate (S)

The question was posed to me by my college professor while I was bunking the class.

The doubt is from Enzymes Purification in section Enzymes Purification of Enzyme Technology

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The correct option is (b) Diethylaminoethyl (DEAE)

Explanation: The odd one out is diethylaminoethyl (DEAE) as it is an anion exchanger as compared to Carboxymethyl (CM), sulphopropyl (SP) and methyl sulphonate (S) are cation exchangers. Cation exchangers are negatively charged exchangers which have positively charged counter ions (cation).

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