1. If no more solute can be dissolved in a solvent at a given temperature then that solution is called   An Unstable Solution   A Real Solution   A Saturated Solution   A Dispersed Solution   Hint Half-n-half Clue   2. Which of the following is not an allotrope of carbon   Silk   Charcoal   Diamond   Graphite   Half-n-half Clue   3. The lead of a pencil mainly contains   Carbon Black   Plastics   Graphite   Lead   Half-n-half Clue   4. Acids change a litmus paper from   Green to White   Red to Purple   Red to Blue   Blue to Red   Half-n-half Clue   5. Which of the following is not an acid?   HCl   H2SO4   NaOH   HNO3   Half-n-half Clue   6. What is the combination of any substance with oxygen known as?   Reduction   Hydrogenation   Combustion   Oxidation   Half-n-half Clue   7. Which of the following gases is green in color?   Hydrogen   Chlorine   Krypton   Neon   Half-n-half Clue