Propyne and propene can be distinguished by
conc. H2SO4
Br2 in CCl4
dil. H2SO4
AgNO3 in ammonia
C2H5Cl . This method is
Wurtz synthesis
Kolbe synthesis
Corey House synthesis
Friedel-Craft synthesis
One of the isomer of the 5th member of alkyne series is optically active. It is
4-methyl pent-2-yne
3-methyl pent-1-yne
4-methyl pent-1-yne
3, 3-dimethyl but-1-yne
Acetylene and HCHO react in presence of copper acetylide catalyst to form
But-2-yne-1, 2-diol
But-1-yne-1, 4-diol
But-2-ene-1, 4-diol
2-butyne-1, 4-diol
Which of the following substance is not related with HVZ reaction?
α-bromo acetic acid
Zn/ Hg
Cl2
Red P
Which of the following compound show acidic nature?
but-1-yne
but-2-yne
but-1-ene
buta-1, 3-diene
Compound A on ozonolysis gives acetone and glyoxal. The compound A is
2, 5-dimethyl hex-2, 4-dene
2, 5-dimethyl hex-1, 5-diene
2, 5-dimethyl hex-3, 4-diene
2, 5-dimethyl but-2, ene
, A and B are
alc KOH and SeO2
NaNH2 and lindlar catalyst
alc KOH and NaNH2
Lindlar catalyst and NaNH2
C.
alc KOH and NaNH2
Acetylene homologues isomense when heated with ethanohc KOH, the triple bond moving towards the centre of the chain.
When alkynes are heated with sodamide in an inert solvent [paraffin), triple bond shifts
towards the end of the chain.