Answered

Which solution will change red litmus paper to blue?
A CH₂OH because it gives off CH3 ions
B) NaOH because it gives off OH ions
HCI because it gives off H* ions
NaCl because it gives off Cl ions



Answer :

GinnyAnswer
The solution that will change red litmus paper to blue is option B) NaOH because it gives off OH ions.

Here's a step-by-step explanation:
1. Litmus paper is a type of paper that is used to test whether a substance is acidic or basic (alkaline).
2. Red litmus paper turns blue in a basic (alkaline) solution.
3. NaOH, which is sodium hydroxide, is a strong base that dissociates in water to give off hydroxide ions (OH-).
4. When NaOH is dissolved in water, it releases hydroxide ions which can accept protons from acidic substances, making the solution basic.
5. The presence of hydroxide ions in the solution causes the red litmus paper to change its color from red to blue, indicating that the solution is basic.

Therefore, NaOH is the solution that will change red litmus paper to blue by releasing hydroxide ions.