Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is Non-combustible More abundant than hydrogen Lighter than hydrogen More stable Non-combustible More abundant than hydrogen Lighter than hydrogen More stable ANSWER DOWNLOAD EXAMIANS APP
Chemistry Catalyst is a substance which 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 Decreases the rate of reaction None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Stainless steel is an alloy of Chromium, carbon and iron Chromium and carbon Carbon and iron Chromium and iron Chromium, carbon and iron Chromium and carbon Carbon and iron Chromium and iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following acts as best adsorbent? Activated Charcoal Charcoal Activated Coconut Charcoal Carbon black Activated Charcoal Charcoal Activated Coconut Charcoal Carbon black ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical properties of isotopes Need not be same Must be same Must be different Need not be different Need not be same Must be same Must be different Need not be different ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is a soluble salt in H2O Zn(OH)2 CuS CaCl2 PbCl2 Zn(OH)2 CuS CaCl2 PbCl2 ANSWER DOWNLOAD EXAMIANS APP
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