1. If no more solute can be dissolved in a solvent at a given temperature then that solution is called   A Dispersed Solution   A Saturated Solution   An Unstable Solution   A Real Solution   Hint Half-n-half Clue   2. Solubility of a substance in a solvent usually increases with an increase in temperature.   False   True   3. Catalysts often speed up certain chemical reactions.   True   False   4. The lead of a pencil mainly contains   Graphite   Lead   Plastics   Carbon Black   Half-n-half Clue   5. Lemon juice is   Metallic   Neutral   Acidic   Basic   Half-n-half Clue   6. A pH of below 7 indicates   Presence of Ions   Purity of the sample   Alkalinity   Acidity   Half-n-half Clue   7. Fill in the missing word Acid + _______ = Salt + Water   Non Metal   Oxygen   Base   Metal   Half-n-half Clue