Chemistry Warming Ammonium chloride with sodium hydrochloride in a test tube is an example of Closed system Isobaric system Isothermal system Open system Closed system Isobaric system Isothermal system Open system ANSWER DOWNLOAD EXAMIANS APP
Chemistry At room temperature, the metal that remains liquid is: Platinum Mercury Lead Zinc Platinum Mercury Lead Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is More stable Non-combustible Lighter than hydrogen More abundant than hydrogen More stable Non-combustible Lighter than hydrogen More abundant than hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron is extracted from Haematite Dolomite Cinnabar Bauxite Haematite Dolomite Cinnabar Bauxite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 100 km 200 km 150 km 300 km 100 km 200 km 150 km 300 km ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used as non-stick coating for cooking utensils? Polystyrene Styrofoam Perspex Teflon Polystyrene Styrofoam Perspex Teflon ANSWER DOWNLOAD EXAMIANS APP
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