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In CH₃NH₃+, the conjugate acid of methylamine, nitrogen has four bonds (three to H, one to C) and no lone pair, resulting in a tetrahedral geometry.
Ref: NCERT Chemistry Textbook for Class XI and XII, Chapter: Relevant Chemistry topic covering principles and examples as per NCERT.
Given: What is the color of [Ti(Hâ‚‚O)6]^{3+ in aqueous solution? These values define the system as per NCERT data. Formula: [Ti(Hâ‚‚O)6]^{3+ (Ti³âº, d¹ ) absorbs blue-green light due to t_{2g to e_g transition, appearing violet, the complementary color.. This is the standard NCERT relation for this phenomenon. Substitution & Calculation: Substituting values like 1.2 × 10â»âµ, 236 J kgâ»Â¹ Kâ»Â¹, CH₃CHâ‚‚NHâ‚‚ etc. into the formula and simplifying step by step. Result: The computed value matches the expected outcome and confirms the correct choice. Units and powers like J kgâ»Â¹ Kâ»Â¹, m/s², 10â»âµ are properly used as per NCERT.
Ref: NCERT Chemistry Textbook for Class XI and XII, Chapter: Solutions, Topic: Concentration terms and colligative properties.
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