Calomel (Hg₂Cl₂) on reaction with ammonium hydroxide gives

 

1.  HgO

2.  Hg₂O

3.  NH₂-Hg-Hg-Cl

4.  HgNH₂Cl

 

The IUPAC name of the coordination compound K₃[Fe(CN)₆] is

 

1.  tripotassium hexacyanoiron (II)
2.  potassium hexacyanoiron (II)
3.  potassium hexacyanoferrate (III)
4.  potassium hexacyanoferrate (II)

Which of the following compounds shows optical isomerism?

 

The best reagent to convert pent-3-en-2-ol into pent-3-en-2-one is

 

1.  pyridinium chloro-chromate
2.  chromatic anhydride in glacial acetic acid
3.  acidic dichromate
4.  acidic permanganate

A codon has a sequence of A and specifies a particular B that is to be incorporated into a C. What are?A, B, C 

 

1.  a
2.  b
3.  c
4.  d

p-cresol reacts with chloroform in alkaline medium to give a compound A which adds hydrogen cyanide to form another compound B. This latter on acidic hydrolysis gives chiral carboxylic acid. The structure of the carboxylic acid is

t_1/4 can be taken as the time taken for the concentration of a reactant to drop to \(\frac{3}{4}\) of its initial value. If the rate constant for a first-order reaction is k, the t_1/4 can be written as: 
Given: log 4 = 0.6020 and log 3 = 0.4771)

1.	0.75/k	2.	0.69/k
3.	0.29/k	4.	0.10/k