Assertion: All naturally occurring α− amino acids except glycine are optically active. 

Reason: Most naturally occurring amino acids have L- configuration. 

(i) Assertion and reason both are correct statements and reason explains the assertion. 

(ii) Both assertion and reason are wrong statements. 

(iii) Assertion is correct statement and reason is wrong statement. 

(iv) Assertion is wrong statement and reason is correct statement. 

(v) Assertion and reason both are correct statements but reason does not explain assertion.

<p>This is an Assertion and Reason Type Questions as classified in NCERT Exemplar</p><p><strong>Ans:&nbsp;</strong> (v)</p><p>All other naturally occurring alpha-amino acids, with the exception of glycine, are optically active due to the asymmetry of the α - carbon atom. Both of these ' D ' and ' L ' configurations are available. The majority of amino acids found in nature have a L− configuration. The group on the left side is used to designate L− amino acids.</p><p>naturally occurring amino acids have a configuration. The −NH₂ group on the left side is used to indicate amino acids.</p>

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