Molecules on an acid–base indicator react chemically with ions in a solution, causing the indicator to change color. which ions in the solution cause this reaction? oxygen ions water ions hydrogen ions nitrogen ions

The correct answer is hydrogen ions.

Explanation:

Acid-base indicator is used to detect the pH of the solution.

pH is defined as the negative logarithm of hydrogen ion concentration present in the solution.

If the solution has high hydrogen ion concentration, then the pH will be low and the solution will be acidic. The pH range of acidic solution is 0 to 6.9If the solution has low hydrogen ion concentration, then the pH will be high and the solution will be basic. The pH range of basic solution is 7.1 to 14The solution having pH equal to 7 is termed as neutral solution.

The equation representing the reaction between hydrogen ions and acid-base indicator follows:

Hence, the correct answer is hydrogen ions.

In First compound the longest chain contains 7 C atoms.

In the Second compound the longest chain contains 9 C atoms.

In the Third compound the longest chin contains 7C atoms.

Explanation: