The reduction of 4-octyne with H2 in the presence of Pd/CaSo4 quinoline gives:
trans-4-octene
cis-4-octene
a mixture of cis and trans-4-octene
a completely reduced product C8H18
Addition of which of the following reagents to alkene is stereospecific:
I.Br2 II. KMnO4
III. BH3 THF/H2O2.NaOH
Select the correct reagent:
Both I and II
Both II and III
Both I and III
I, II and III
D.
I, II and III
A reaction is stereospecific when each of the two specific stereosiomers of a starting material yields a particular of stereoisomer of a product.
An unknown silver salt of monoacidic alkyne contains 67.08% silver. The structure of the alkyne is:
What is obtained, when potassium succinate soluton is electrolysed ?
Ethane
Ethene
Ethyne
All of these
CH3COOH CH2BrCOOH
This reaction is called
Schotton-Bauman reaction
Finkelstin reaction
Hell-Volhard-'Zelinsky reaction
none of the above
Arrange the following in the decreasing order of their melting points:
I. Heptane II. Octane
III. Nonane IV. Decane
IV > II > III > I
IV > III > I > II
I > II > IV > III
II > III > I > IV
Which of the following is not a cumulated diene?
Hexa - 2 , 3 - diene
Penta - 1 , 3 - diene
Hexa - 1 , 2 - diene
Penta - 2 , 3 - diene