JAMB Mathematics 2022 Objective — Question 23

Question 23 of 41 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2022 Objective paper, with the correct answer and a full explanation.

An aqueous solution of Na₂CO₃ is

A. Neutral
B. Acidic
C. AlkalineCorrect
D. Amphoteric

Explanation

Na₂CO₃ is a salt of a weak acid (H₂CO₃) and strong base (NaOH). It hydrolyses in water to give an alkaline solution: CO₃²⁻ + H₂O ⇌ HCO₃⁻ + OH⁻.

Sign up free to unlock

Score tracking
Practice history
Saved questions
Progress dashboard
Personalized sessions
Weak-topic breakdown

…and/or go further with premium services and No Ads.

Create free account

More questions from Mathematics 2022 Objective More Mathematics past papers