A mixture of lemon juice cannot be used to kill ants.
Just like vinegar, lemon juice also seems to destroy those scent trails that ants follow. Try spraying lemon juice around the places you think ants are using for entryways.
No, ants hate Lime and will move next door.
only sugar ants
The effect the chalk has on ants is that it can penetrate their skin and dehydrate them. Chalk can slowly kill an ant.
The ants can't cross the line of powder.
YES
A few bay leaves scattered loose on cupboard shelves will repel inspects of many kinds, including ants.
Lavender can be used to repel ants. They do not like the smell of it. You can use dried lavender, lavender oil or lavender plants around the home.
Yes, ants are repelled by the scent coffee gives off. You can see other natural ways to repel ants at the related link below.
Fire ant bait. There are some very good ones out there.
A variety of insects. Slugs, ants, and some beetles