In which of the following solvents, the C4H 8NH 3+X– is soluble;(a) ether (b) acetone (c) water (d) bromine water

C4H8NH3+X– is a salt, and like most salts, it is polar. Polar substances tend to dissolve well in polar solvents.

(a) Ether is a nonpolar solvent, so C4H8NH3+X– would not be soluble in it.

(b) Acetone is a polar solvent due to the presence of a carbonyl group (C=O), but it is less polar than water. Therefore, C4H8NH3+X– may have some solubility in acetone, but it would not be the best choice.

(c) Water is a polar solvent, and it is often referred to as the "universal solvent" because it can dissolve many substances, including salts like C4H8NH3+X–. Therefore, C4H8NH3+X– would be soluble in water.

(d) Bromine water is a mixture of bromine and water. Since water is a component of this solvent, C4H8NH3+X– would also be soluble in bromine water.

So, the answer is (c) water and (d) bromine water.