Chemistry Which of the following is used in welding broken pieces of iron rails and machine parts? Aluminium sulphate Solder None of these Aluminium powder Aluminium sulphate Solder None of these Aluminium powder ANSWER DOWNLOAD EXAMIANS APP
Chemistry Catalyst is a substance which Decreases the rate of reaction None of these Has no action on the rate of the reaction Increases the rate of the reaction Decreases the rate of reaction None of these Has no action on the rate of the reaction Increases the rate of the reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the process is known as nitrification? Reaction of nitrogen dioxide with water to form nitric acid Reaction of Nitrogen Monoxide with oxygen to form nitric acid Conversion of ammonia to nitrites Conversion of nitrite to nitric oxide Reaction of nitrogen dioxide with water to form nitric acid Reaction of Nitrogen Monoxide with oxygen to form nitric acid Conversion of ammonia to nitrites Conversion of nitrite to nitric oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Smoke is formed due to Gas dispersed in gas Solid dispresed in liquid Gas dispresed in solid Solid dispersed in gas Gas dispersed in gas Solid dispresed in liquid Gas dispresed in solid Solid dispersed in gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a method of preparing oxygen? Decomposition of potassium permanganate Fractional distillation of liquid air Decomposition of manganese dioxide Electrolysis of water Decomposition of potassium permanganate Fractional distillation of liquid air Decomposition of manganese dioxide Electrolysis of water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Electric bulbs are filled with : Oxygen Nitrogen Argon Carbon dioxide Oxygen Nitrogen Argon Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
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