Question : Which gas is used by chemical leaveners, such as baking powder and baking soda, to lighten and aerate baked goods?

Option 1: Nitrogen

Option 2: Carbon dioxide

Option 3: Helium

Option 4: Hydrogen

Question : Dry powder fire extinguishers contain:

Option 1: sand

Option 2: sand and sodium carbonate

Option 3: sand and potassium carbonate

Option 4: sand and sodium bicarbonate

Question : Which one of the following metals does not react with water to produce Hydrogen?

Option 1: Potassium

Option 2: Cadmium

Option 3: Sodium

Option 4: Lithium

Question : Which of the following is not a food preservative?

Option 1: Aqua regia

Option 2: Vinegar

Option 3: Sodium chloride

Option 4: Sodium nitrite

Question : The chicory powder that is mixed with coffee powder is obtained from which of the following parts of the plant?

Option 1: Stem

Option 2: Fruit

Option 3: Flower

Option 4: Root