political science degree ba

Question: In the reaction: , the white precipitate seen is due to ______. 1. ZnCl 2 2. BaSO 4 3. BaCl 2 4. ZnSO 4 Answer: ..

Question: What are strong and weak acids? Give one example of each? Answer: A strong acid is one, which is almost completely dissociated in solution. Examples: Dilute nitric acid, dilute sulphuric acid and dilute hydrochloric acid. A weak acid is one, which is only partially ionized in s..

Question 1 - Question: (i) Define the following terms: (a)speed (b) velocity (c) uniform velocity (d) non uniform velocity (e) acceleration (f) retardation. (ii) Distinguish between: (a) Speed and Velocity (b) Uniform acceleration and Variable acceleration Answer: (a) Speed Speed is the distan..

>The modern periodic table is also known as the long form of the periodic table or the extended form of the periodic table. In this table, the elements are arranged in the order of increasing atomic numbers in such away that elements with similar properties fall in the same vertical column. These v..

Minerals and Ores - Metals and their compounds are found in earth as natural elements known as minerals. Ores are minerals from which metals are extracted profitably and conveniently. Ores contain metal compounds with a lower percentage of impurities. All the ores are minerals, but all minerals are..

Name Name Chemical Formula Common Name Barium chloride BaCl 2 .2H 2 O Calcium chloride CaCl 2 .6H 2 O Dow flake Calcium nitrate Ca(NO 3 ) 2 .4H 2 O Lime salt petre or Norwegian salt pe..

Power of a Lens - Whenever a ray of light passes through a lens (except when it passes through the optical centre) it bends. The bending of light rays towards the principal axis is called convergence and bending of light rays away from the principal axis is called divergence. The degree o..

. Sedimentation followed by Decantation is used to separate an insoluble solid from a liquid. Filtration is a more effective method of separating an insoluble solid from a liquid. A soluble solid can be obtained back from a liquid in which it dissolves by the process of evaporation. Distillation is..

="center">Gallium - Ga 16. Strontium - Sr 17. Molybdenum - Mo 18. Silver Argentum (latin) Ag 19. Cadmium - Cd 20. Tin Stannum (latin) Sn 21. Antimony Stibium (latin) Sb 22. Barium - Ba 23. Tungsten Wolfram (German) W 24. Platinum - Pt 25. Mercury Hydrargyrum (latin) Hg 26. Lead Plumbum (l..

Formation of Image by a Plane Mirror - Ray Diagrams - The following rays are usually considered while constructing ray diagrams: A ray of light incident on a plane mirror at 90 degree gets reflected from the mirror along the same path. A ray of light falling on a plane mirror at any angle..