A chemist has 4 samples of artificial sweetener
A, B, C and D. To identify these samples, he
performed certain experiments and noted the
following observations :
(i) A and D both form blue-violet colour with
ninhydrin.
(ii) Lassaigne extract of C gives positive
AgNO₃ test and negative Fe₄[Fe(CN)₆]₃ test.
(iii) Lassaigne extract of B and D gives positive
sodium nitroprusside test
Based on these observations which option is
correct ?