# Acids and Bases Question

**View this question.**

Add this question to a group or test by clicking the appropriate button below.

- [math]"H"_3"PO"_4[/math]
- NaOH
- [math]"H"_2"O"[/math]
- [math]"CO"_2[/math]

This question is public and is used in
**57** tests or worksheets.

Type: *Multiple-Choice*

Category: *Acids and Bases*

Level: *Grade 10*

Author: *teachchemistry*

Last Modified: *7 months ago*

View all questions by teachchemistry.

**View this question.**

Add this question to a group or test by clicking the appropriate button below.

Which of the following substances, when dissolved in water, increases the concentration of hydroxide ions?

- [math]"H"_3"PO"_4[/math]
- NaOH
- [math]"H"_2"O"[/math]
- [math]"CO"_2[/math]

You need to have at least 5 reputation to vote a question down.
Learn How To Earn Badges.