Question
In potash alum, the ratio of K^+ and SO_4^ 2- ions is
NEET
Chemistry
p Block Elements (Group 13 & 14)
2026
NEET 2026 (Re-NEET)
NEET Chemistry Question (2026) — Solution
Options
- A. 3:2
- B. 1:2
- C. 2:1
- D. 2:3
Answer
B. 1:2
Step-by-step solution
The chemical formula of potash alum is K _2 SO _4 Al _2( SO _4)_3 24 H _2 O . In one formula unit of potash alum, the number of K ^+ ions is 2. The number of SO _4^ 2- ions is 1 + 3 = 4. The ratio of K ^+ to SO _4^ 2- ions is 2:4, which simplifies to 1:2. Answer: 1:2
Related: Chemistry — p Block Elements (Group 13 & 14) · All PYQ Banks