Answer:
cis-hex-2-ene as produced as major product.
Explanation:
- In presence of
(Lindlar catalyst) and
, alkynes are reduced to alkene.
molecules first adsorbed onto metal surface through chemisorption.- When alkyne molecule comes in close proximity to the metal surface, H atoms add onto triple bond to reduce it to alkene.
- Two H atoms add onto alkyne from same face of metal. So, (Z) or cis-isomer of alkene is produced as a major product.
- Reaction mechanism has been shown below.
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answer:
A
explanation:
it have to be balanced to form water
and water is H2O
3BaO(s)+3Al(s)—3Ba(l) + Al2O3(s)
If you need it balanced.