Chemistry Blog & Study Updates
Guides, exam strategy and study updates for NEB Grade 11-12 and CEE chemistry, written by the Periodic Learn editorial team.
Salt Analysis: A Systematic Order for Cation Detection
The correct sequence for qualitative salt analysis, the group reagents for cations, and how to avoid the most common mistakes in NEB practical exams.
September 24, 2026 · 6 min read
Balancing Redox Reactions: The 5-Step Ion-Electron Method
Master the ion-electron method to balance any redox equation in acidic or basic medium, with the reasoning behind each step and the mistakes to avoid.
September 10, 2026 · 7 min read
CEE Chemistry: High-Weightage Topics to Revise First
Which chemistry topics carry the most marks in Nepal CEE? A prioritised revision order with reasons and a realistic time estimate for each block.
August 28, 2026 · 5 min read
How to Read the Periodic Table: Groups, Periods and Blocks Explained
A beginner-friendly guide to reading the periodic table: what groups, periods and blocks mean, and how an element position predicts its electron configuration.
August 12, 2026 · 6 min read