Chemistry The green colour seen in firework displays is due to the chloride salt of : Calcium Sodium Strontium Barium Calcium Sodium Strontium Barium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The luster of a metal is due to its high polishing its chemical inertness presence of free electrons its high density its high polishing its chemical inertness presence of free electrons its high density ANSWER DOWNLOAD EXAMIANS APP
Chemistry In an oxygen molecule, two atoms are united by Two bonds Three bonds One bond Four bonds Two bonds Three bonds One bond Four bonds ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following could be used as fuel in propellant or rockets ? Liquid Hydrogen + Liquid Nitrogen Liquid Oxygen + Liquid Argon Liquid Nitrogen + Liquid Oxygen Liquid Hydrogen + Liquid Oxygen Liquid Hydrogen + Liquid Nitrogen Liquid Oxygen + Liquid Argon Liquid Nitrogen + Liquid Oxygen Liquid Hydrogen + Liquid Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is 4.84 x 1017 6.023 x 1019 6.023 x 1023 1.568 x 103 4.84 x 1017 6.023 x 1019 6.023 x 1023 1.568 x 103 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a method of preparing oxygen? Fractional distillation of liquid air Electrolysis of water Decomposition of manganese dioxide Decomposition of potassium permanganate Fractional distillation of liquid air Electrolysis of water Decomposition of manganese dioxide Decomposition of potassium permanganate ANSWER DOWNLOAD EXAMIANS APP
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