Chemistry The minimum energy required for an effective collision is Activation energy Threshold energy Free energy Internal energy Activation energy Threshold energy Free energy Internal energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which type of radiations are absorbed by the upper layer of the atmosphere? Infrared Radio-waves Ultraviolet Visible Infrared Radio-waves Ultraviolet Visible ANSWER DOWNLOAD EXAMIANS APP
Chemistry 0.01 mole of NaOH is added to 10 liters of water. The pH of water changes by 3 6 7 4 3 6 7 4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Milk tastes sour when it is left in open for some time. This happens due to the formation of Carbonic acid Acetic acid Citric acid Lactic acid Carbonic acid Acetic acid Citric acid Lactic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Permanent – hardness of water may be removed by addition of Sodium carbonate Alum Lime Potassium Permangante Sodium carbonate Alum Lime Potassium Permangante ANSWER DOWNLOAD EXAMIANS APP
Chemistry When iron rusts, its weight Remains the same First increases and then decreases Increases Decreases Remains the same First increases and then decreases Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
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