Q. During respiration in cells, _______ combines with oxygen to produce CO₂ and water.
The correct answer was: Glucose
Q. Plaster of Paris (POP) is
The correct answer was: CaSO₄.½H₂O
Q. _______ is a highly malleable metal.
The correct answer was: Au
Q. When lead nitrate is heated, the emission of _______ is observed.
The correct answer was: NO₂
Q. The solution of _______ does not conduct electricity.
The correct answer was: Glucose
Q. Baking soda is
The correct answer was: Sodium hydrogen carbonate
Q. Slaked lime slowly reacts with CO₂ in the air to form _______.
The correct answer was: CaCO₃
Q. Chips manufacturers usually flush the chips bags with _______ gas to prevent oxidation.
The correct answer was: Nitrogen
Q. _______ does not react with cold water.
The correct answer was: Sodium
Q. When excess carbon dioxide is passed through lime water, _______ is obtained.
The correct answer was: Ca(HCO₃)₂
Q. The ability to draw metals into thin wires is called _______.
The correct answer was: Ductility
Q. Our stomach produces _______ acid that helps in digestion.
The correct answer was: Hydrochloric acid
Q. _______ is a non-metal but has a shiny appearance.
The correct answer was: Iodine
Q. The color of iron pyrite crystal is _______.
The correct answer was: Green
Q. Sulfuric acid is treated with _______.
The correct answer was: H₂
Q. _______ is used in the preparation of borax.
The correct answer was: Baking soda
Q. The pH of blood is
The correct answer was: 7.4
Q. Quick lime is _______.
The correct answer was: CaO
Q. Na₂SO₄ + BaCl₂ → BaSO₄ + 2NaCl is an example of _______ reaction.
The correct answer was: Double Displacement
Q. The stinging pain from the hairs of a nettle plant is caused by _______ acid.
The correct answer was: Methanoic acid
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