Related InterviewSolutions

• What is the principle involved in the following methods of separation of mixtures ? (i) Fractional crystallization (ii) Magnetic separation (iii) Gravity method (iv) Separating funnel method (v) Distillation (vi) Fractional distillation (vii) Preferential liquifaction (viii) Chromatography (ix) Fractional evaporation
• For the following properties listed below, arrange solids, liquids and gases either in the increasing or decreasing order as indicated against them. (i) Diffusibility (ii) Intermolecular spaces (iii) Thermal expansion (iv) Intermolecular force of attraction
• Which of the following statements is true regarding solids?A. Solids are highly compressible.B. Solids diffuse rapidly.C. Solids possess low density.D. Solids possess many number of free surfaces.
• Explain the method by which `Cl_(4),H_(2)O` and ethyl alcohol mixture can be separated.
• What is the method of separation of (a) `N_(2)-CO_(2)` mixture, (b) `H_(2) -O_(2)` mixture, (c ) `NH_(4)Cl, KCl` and sand mixture, (d) Ink-water mixture
• State the uses of the followign non-metals. (a) Oxygen (b) Chlorine (c ) Sulphur
• A, B, C, D are four gases. If the order of their critical temperature is as follows D lt B lt C lt A, which of the following gas has the highest boiling point?A. AB. BC. CD. D
• According to the kinetic molecular theory, explain the following. (a) Density of a solid is the highest. (b) Gases are highly compressible whereas solids are incompressible. (c ) Liquids and gases are fluids whereas solids are rigid.
• What is supernatant liquid?
• What is the shape of the meniscus observed when water and mercury are taken in two different capillary tubes and why?