Questions asked by soumya s.

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• Assuming complete precipitation of AgCl, calculate the sum if the molar concentration of all the ions if 2 lit. of 2M Ag2SO4 is mixed with 4 lit. of 1M NaCl solution?
  
• A pulley is atttached to the ceiling of a lift moving upward. Two particles are attached to the two ends of a string passing over the pulley. The masses of the particles are in the ratio 2:1. If the acceleration of the particles is g/2 then acc of lift?
  
• What is the concentration of OH- ions in the final solution prepared by mixing 20ml of 0.05 M HCL with 30ml of 0.10M Ba(OH)2?
  
• The temperature in DEGREE CENTIGRADE of certain gas is increased by 10%. calculate % increase in volume at constant n& P?
  
• Which of the following has/have a strong covalent bond? (A) Cl-F (B)F-F (C)C-Cl. (D)C-F?
  
• Which electronic transition in a hydrogen atom will require the largest amount of energy ? (1) n = 1 to n = 2 (2) n = 2 to n = 4 (3) n = 5 to n = 1 (4) n = 3 to n = 2?
  
• In a certan region of space the gravitaional field is given by -k/r where r is the distance and k is a constant. if the gravitational potential at r= a be v then what is the expression for gravitational potential ?