A) oxidises
B) condense with
C) reduces
D) add to
Correct Answer: C
Solution :
All monosaccharides reduce Tollen's reagent into silver mirror. \[\underset{glu\cos e}{\mathop{\underset{\begin{smallmatrix} | \\ C{{H}_{2}}OH \end{smallmatrix}}{\overset{\begin{smallmatrix} CHO \\ | \end{smallmatrix}}{\mathop{{{(CHOH)}_{4}}}}}\,}}\,+\underset{\begin{smallmatrix} tollen's \\ teagent \end{smallmatrix}}{\mathop{A{{g}_{2}}O}}\,\xrightarrow[{}]{{}}\underset{gluconic\,acid}{\mathop{\underset{\begin{smallmatrix} | \\ C{{H}_{2}}OH \end{smallmatrix}}{\overset{\begin{smallmatrix} COOH \\ | \end{smallmatrix}}{\mathop{{{(CHOH)}_{4}}}}}\,}}\,+\underset{\begin{smallmatrix} silver \\ mirror \end{smallmatrix}}{\mathop{2Ag}}\,\]
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