The strongest acid among the following is: 

1.  o-Methoxy phenol
2.  p-Methoxy phenol
3.  m-Methoxy phenol
4.  Phenol

On commercial scale phenol is obtained from chlorobenzene. The chlorobenzene needed for the purpose is prepared by Rachig’s process. Which one of the following is Rachig’s process?

 

1.  

How many mL of 0.125 M Cr³⁺ must be reacted with 12.00 mL of 0.200 M if the redox products are and Mn²⁺?

 

1.  8 mL

At 300 K, the 36 g of glucose present per litre of solution has an osmotic pressure of 4.98 bar. If the osmotic pressure of the solution is 1.52 bar at the same temperature, what would be its concentration?

1.  11 g L^-1

The composition of a sample of wurtzite is Fe_0.93O. What percentage of the iron is present in the form of Fe (III)?

 

1.  5%

When acidified K₂Cr₂O₇ solution is added to Sn²⁺ salts, then Sn²⁺ changes to

 

1.  Sn

What would be the expected product of the reaction of propyne with Br₂/H₂O if the mechanism of this reaction is analogous to that of propene?

 

1.  2-brompropenol

Which of the following carbocation would have the greatest stability?

 

1.  CH₃ -S-CH₂⁺

Electron affinity is positive, when

 

1.  O changes into O^-

Which one of the following pairs represents stereoisomerism?