1. Which of the following is a non �metal? (A) Mercury (B) Magnesium (C) Manganese (D) None of these. 2. The increase in area of the solid on heating is called (A) Superficial expansion (B) Linear expansion (C) Cubical expansion (D) Quadrilateral expansion 3. The temperature at which no more energy can be removed from matter is called (A) Absolute zero (B) Boiling point (C) 32� F (D) 32�C 4. A lightning conductor is a (A) Piece of metallic wire with spikes through which current can flow (B) Substance that can be charged by clouds (C) Carbon rod (D) Plastic rod. 5. Which one of the following is true for all chemical reactions? (A) There is a change in volume (B) Heat is evolved (C) Chemical bonds are broken or formed (D) There is a change in mass 6. The movement of oxygenated...