PRINCIPLES RELATED TO PRACTICAL CHEMISTRY – 1

1) In Millon’s test for proteins the reagent is
a) CuSO4
b) K2HgI4
c) K4[Fe(CN)6]
d) HgSO4

2) Lassaignes test is not used in qualitative analysis to detect
a) Nitrogen
b) Sulphur
c) Chlorine
d) Phosphorus

3) In Carius tube, the compound was heated with fuming and . After filtration and washing, a white ppt. was formed. The ppt. is
a) AgCl
b)
c)
d)

4) If on adding solution to acidified Lassaignes solution, a blood red colouration is produced, it indicates the presence of
a) S alone
b) N alone
c) N and S
d) S and Cl


Answer :

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