1. Which of the following gases is green in color?   Hydrogen   Krypton   Neon   Chlorine   Hint Half-n-half Clue   2. Fill in the missing word Acid + _______ = Salt + Water   Non Metal   Base   Metal   Oxygen   Half-n-half Clue   3. Acids change a litmus paper from   Green to White   Red to Purple   Red to Blue   Blue to Red   Half-n-half Clue   4. Fizziness in Coco-Cola/Pepsi is caused by   Hydrogen   Carbon Dioxide   Helium   Nitrogen   Half-n-half Clue   5. The two allotropes of phosphorus are   Rhombic Phosphorus, Monoclinic Phosphorus   Crystalline Phosphorus, Amorphous Phosphorus   Red Phosphorus, Yellow Phosphorus   Alpha Phosphorus, Beta Phosphorus   Half-n-half Clue   6. A substance that absorbs moisture is known as   Hydrophilic   Hygroscopic   Hydrophobic   Amorphous   Half-n-half Clue   7. Which of the following is not an acid?   HNO3   NaOH   HCl   H2SO4   Half-n-half Clue