Erasing Ink With Household Chemicals. 1  1. Use acetone to erase ink. Most nail polish remover is made of acetone, and this can be used to remove ink from paper. 2  2. Try rubbing alcohol to erase ink. You can apply isopropyl (rubbing) alcohol to any paper you're trying to erase the ink from. 3  3. Apply lemon juice to your ink stain.
Definition of flop. 1 : an act or sound of flopping. 2 : a complete failure the movie was a flop. 3 slang : a place to sleep; especially : flophouse.
A digital computer needs devices which can store information. A flip flop is a binary storage device. It can store binary bit either 0 or 1. It has two stable states HIGH and LOW i.e. 1 and 0. It has the property to remain in one state indefinitely until it is directed by an input signal to switch over to the other state. It is also called bistable multivibrator.