1. A pH below 7 indicates _______.   alkalinity   purity of the sample   acidity   presence of ions   Hint Half-n-half Clue   2. Fill in the missing word: Acid + _______ = Salt + Water   Non Metal   Base   Oxygen   Metal   Half-n-half Clue   3. Which of the following is not an acid?   H2SO4   HNO3   NaOH   HCl   Half-n-half Clue   4. Which of the following gases is green in color?   Neon   Chlorine   Hydrogen   Krypton   Half-n-half Clue   5. What gas is evolved when dilute sulfuric acid is added to zinc?   Sulfur Dioxide   Hydrogen   Hydrogen Peroxide   Argon   Half-n-half Clue   6. Solubility of a substance in a solvent usually increases with an increase in temperature.   True   False   7. The 'fizz' in soft drinks is caused by _______.   hydrogen   nitrogen   helium   Carbon dioxide   Half-n-half Clue   FREE PREVIEW: Last 10 Questions not a part of the free preview. Get Premium Membership to view all questions.