1) The purpose of this test is to identify materials that contain sulfur. a) SAKAGUCHI TEST b) XANTHOPROTEIC TEST c) BIURET TEST d) NINHYDRIN TEST e) LEAD ACETATE TEST f) MILLION'S TEST 2) In ninhydrin test , if the analyte contains proline what colored complex will be formed? a) orange b) green c) yellow d) violet e) blue f) brown 3) This test is due to the presence of indole ring of the tryptophan. a) XANTHOPROTEIC TEST b) MILLION'S TEST c) BIURET TEST d) SAKAGUCHI TEST e) NINHYDRIN TEST f) HOPKIN'S COLE TEST 4) A chemical test that can be used to see if an analyte has peptide bonds or not. a) NINHYDRIN TEST b) MILLION'S TEST c) LEAD ACETATE TEST d) BIURET TEST e) XANTHOPROTEIC TEST f) HOPKIN'S COLE TEST 5) This test is positive for those amino acids that contain benzene ring or aromatic ring. a) XANTHOPROTEIC TEST b) HOPKIN'S COLE TEST c) SAKAGUCHI TEST d) LEAD ACETATE TEST e) NINHYDRIN TEST f) MILLION'S TEST 6) Million's test depends on the presence of ________ in the molecules. a) PHENOLIC GROUPS b) INDOLE RING c) ANALYTE d) AROMATIC RING e) SULFUHYDRYL GROUPS f) GUANIDO GROUPS 7) Sakaguchi test depends on the presence of _________ group. a) AROMATIC RING b) ANALYTE c) GUANIDINIUM/GUANIDO GROUPS d) INDOLE RING e) PHENOLIC GROUPS f) SULFUHYDRYL/DISULFIDE GROUPS

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