CBSE
Multiple Choice QuestionsPredict the product:
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
Which one of the following alkenes will react faster with H2 under catalytic hydrogenation conditions?
(R = Alkyl substituent)
The least energetic conformation of cyclohexane is:
Boat form
Half chair form
Chair form
Twisted form
Butyne-1 and butyne-2 can be distinguished by
H2SO4
AgNO3 + NH4OH
K2Cr2O7
NH4OH
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
The homologue of ethyne is
C2H2
C2H6
C3H8
C3H4
By which one of the following compounds both CH4 and CH3 - CH3 can be prepared in one step?
CH3I
CH3OH
CH3CH2I
C2H5OH
What is obtained, when potassium succinate soluton is electrolysed ?
Ethane
Ethene
Ethyne
All of these
An unknown silver salt of monoacidic alkyne contains 67.08% silver. The structure of the alkyne is:
