As we know that,
Salvage is to save something from destruction, burn will be to destroy.

Correct Option: A

As per the given above word , we can say that
Salvage is to save something from destruction, burn will be to destroy.
From above it is clear that Burn is antonym word of Salvage .

As we know that ,
Delectable is delightful or pleasant, distasteful is something unpleasant, agonizing is something that gives pain and anxiety, appetizing means to rouse or increase appetite, laborious means something that needs or shows much effort.

Correct Option: C

As we know that ,
Delectable is delightful or pleasant, distasteful is something unpleasant, agonizing is something that gives pain and anxiety, appetizing means to rouse or increase appetite, laborious means something that needs or shows much effort.
Thus , Distasteful is antonym ( opposite ) word of Delectable .

As we know that ,
Amalgamate is to blend two things together, split is to break up, merge is synonymous to amalgamate, impoverish is to make poor inequality and consecrate is to devote something for religious purpose.

Correct Option: D

As we know that ,
Amalgamate is to blend two things together, split is to break up, merge is synonymous to amalgamate, impoverish is to make poor inequality and consecrate is to devote something for religious purpose.
Hence , Split is antonym word of Amalgamate .