• A: True. Glycerol decomposes at its normal boiling point, so it is purified by vacuum distillation.
• B: False. Aniline is immiscible in water but can still be purified by steam distillation.
• C: True. Ethanol forms an azeotrope with water, making azeotropic distillation effective for separation.
• D: True. A pure organic compound exhibits the same melting point even when mixed with another sample of the same compound.
Match the following List-I with List-II and choose the correct option: List-I (Compounds) | List-II (Shape and Hybridisation) (A) PF (I) Tetrahedral and sp (B) SF (III) Octahedral and spd (C) Ni(CO) (I) Tetrahedral and sp (D) [PtCl] (II) Square planar and dsp
Let A be a 3 × 3 matrix such that . If , then is equal to: