S.N Oxidizing agent Reducing agent 1. Almost all non-metals like O2, F2, and Cl2 are oxidizing agents. All the metals like Na, K, Ca, Mg and some non-metals like C, H, P and S are reducing agents. 2. All the oxides like SO2, SO3, CO3, CaO, FeO, etc. All the hydrides like NaH, H2S, and … Read more
S.N NH3 PH3 1. It is lighter than air. It is heavier than air. 2. It is not poisonous. It is highly poisonous. 3. It forms H-bonding. It does not form H-bonding. 4. It is highly soluble in water. It is sparingly soluble in water. 5. Its aqueous solution is alkaline. Its aqueous … Read more
A) The electronic configuration(EC) The EC of alkali metal is ns1. They have single electron in their outer most shell. Therefore, their valency is also one. They have a great tendency of losing electron from their outermost orbit. Due to the above reason, they are considered to be the most electropositive elements. For example: Na … Read more
S.N Properties White phosphorous Red phosphorous 1. Colour Light yellow Red 2. Smell Light garlic Smelless 3. Physiology Poisonous Non-poisonous 4. Conductivity Bad conductor Semiconductor 5. Density 1.81 g/cm3 2.1 g/cm3 6. Melting point 44ºc 500ºc 7. Ignition temperature 30ºc 240ºc 8. Phosphorescence Glows up in dark Does not glow in dark 9. Solubility in … Read more
S.N Common name Chemical formula 1. Asbestos CaSiO3.3MgSiO3 2. Alabaster or Gypsum CaSO4.2H2O 3. Anhydrone Mg(ClO4)2 4. Barytes BaSO4 5. Baryta solution Ba(OH)2 6. Baryta BaO 7. Baking soda NaHCO3 8. Bleaching powder CaOCl2 9. Brine NaCl (25-30% aq.soln) 10. Brucite Mg(OH)2 11. Baeyer’s reagent KOH + KMnO4 12. Blue vitriol CuSO4.5H2O 13. Calgon (Graham … Read more
S.N Name of alloys Composition of the alloy 1. Brass Cu + Zn – used for condenser, cartridge, etc. 2. Bronze Cu + Sn (20%) – used for machine parts, utensils, coins, etc. 3. German silver Cu + Zn + Ni – used for planes, ornaments, etc. 4. Rolled gold Cu +Al 5. Bell metal … Read more
S.N Electrovalent compounds Covalent compounds 1. These compounds are formed by transfer of electrons between atoms. These compounds are formed by mutual sharing of electron pairs between atoms. 2. Can conduct electricity in molten or solution state. Cannot conduct electricity. 3. Have high melting and boiling point. Have low melting and boiling point. 4. They … Read more
S.N Soaps Detergents 1. These are sodium salts of long chain fatty acids. These are sodium salts of a long chain of benzene sulphonic acid. 2. These are prepared from plants or animals fats. These are prepared from hydrocarbon of petroleum. 3. Relatively weak cleansing action. Relatively strong cleansing action. 4. Not suitable for washing … Read more
S.N Homogeneous mixture Heterogeneous mixture 1. The prefix “homo” indicate sameness. The prefix “hetero” indicates difference. 2. It has uniform composition. It has non uniform composition. 3. All solutions are homogeneous mixture. All suspensions are heterogeneous in nature. 4. Component particles are distributed equally. Component particles are unevenly distributed. 5. Particles cannot be seen by … Read more
S.N Organic compounds Inorganic compounds 1. Carbon containing compounds are called organic compounds. Compounds of elements other than hydrocarbon are called inorganic compounds 2. Organic compounds are insoluble in water generally. For example: wax, kerosene, ghee, oil, etc. Inorganic compounds are soluble in water generally. For example: copper sulphate, sodium chloride, hydrochloric acid, etc. 3. … Read more