Chemistry When lime juice is dropped on baking soda, brisk effervescence takes place because the gas evolved is Hydrogen Carbon dioxide Oxygen All of them Hydrogen Carbon dioxide Oxygen All of them ANSWER DOWNLOAD EXAMIANS APP
Chemistry The minimum energy required for an effective collision is Activation energy Free energy Internal energy Threshold energy Activation energy Free energy Internal energy Threshold energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brass is a Homogeneous mixture Heterogeneous mixture Compound Element Homogeneous mixture Heterogeneous mixture Compound Element ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hydrogen is not found in atmosphere because It is highly inflammable It immediately combines with oxygen to form water It is absorbed by plants It is the lightest gas It is highly inflammable It immediately combines with oxygen to form water It is absorbed by plants It is the lightest gas ANSWER DOWNLOAD EXAMIANS APP
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