A polyatomic ion.
Examples: Sulfate, Sulfite, Nitrate, Nitrite...
Answer:
hypertonic solution
Explanation:
Hypertonic solution -
It is the solution, with more amount of solute than the solvent , is known as hypertonic solution.
Now, is some substance is immersed in such solution , the substance gets shrinked , because , the solvent from the substance moves out of it and moves to the hypertonic solution.
Hence, the pickles gets shrinked up , as they put in a hypertonic solution.
A is correct hope this helps
Ionic crystals are hard because of tight packing lattices, say, the positive and negative ions are strongly attached among themselves.
