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Class 11 · 3 chapters active
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My Subjects
Chemistry
Ch. 5 — Acids & Bases
Mathematics
Ch. 3 — Trigonometry
Physics
Ch. 12 — Optics
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Lerno AI
You struggled with Optics last session. Want to start Chapter 12 with a quick recap of reflection and refraction?
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Chemistry · Class 11
Chapter 2 — Acids, Bases and Salts
Lerno
An acid produces H⁺ ions in water. Which common acid demonstrates this best?
HCl — gives H⁺ and Cl⁻
Exactly right. HCl → H⁺ + Cl⁻ in water, making it a strong acid. This is the foundation of the Arrhenius model.
Your tutor walks you through every chapter
Pick a subject and chapter. Lerno teaches it topic by topic — at your pace, straight from NCERT. It remembers what you struggled with last time and adjusts.
Chemistry · Class 11
Chapter 2 — Acids, Bases and Salts
Lerno
An acid produces H⁺ ions in water. Which common acid demonstrates this best?
HCl — gives H⁺ and Cl⁻
Exactly right. HCl → H⁺ + Cl⁻ in water, making it a strong acid. This is the foundation of the Arrhenius model.
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Study Feed · Physics
Which type of mirror is used in a vehicle's rear-view mirror?
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Ask Mode · Physics · Class 11
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