The maximum possible denticities of a ligand given below towards a common transition and inner-transition metal ion, respectively, are :
8 and 8
6 and 8
8 and 6
6 and 6
Which of the following compounds is a constituent of the polymer?
[-HN-CO-NH-CH2-]n
Ammonia
Methylamine
Formaldehyde
N-methyl urea
Increasing order of reactivity of the following compounds for SN1 substitution is:
(B) < (C) < (D) < (A)
(A) < (B) < (D) < (C)
(B) < (C) < (A) < (D)
(B) < (A) < (D) < (C)
In the following reaction carbonyl compound +MeOH acetal.
Rate of the reaction is highest for:
Acetone as substrate and methanol in excess
Propanal as substrate and methanol in stoichiometric amount.
Propanal as substate and methanol in excess.
Acetone as substrate and methanol in stoichiometric amount.
C.
Propanal as substate and methanol in excess.
Propanal as substrate and methanol excess to form acetal because aldehyde is more reactive.
The peptide that gives positive ceric ammonium nitrate and carbylamines tests is:
Asp-Gln
Ser-Lys
Gln-Asp
Lys-Asp