Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is Non-combustible More stable Lighter than hydrogen More abundant than hydrogen Non-combustible More stable Lighter than hydrogen More abundant than hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not soluble in water ? Sodium sulphate Lead Sulphate Potassium sulphate Zinc sulphate Sodium sulphate Lead Sulphate Potassium sulphate Zinc sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who developed Hydrogen Bomb? J. Robert Oppen Heimer Samuel Cohen Wernher Von Braun Edward Teller J. Robert Oppen Heimer Samuel Cohen Wernher Von Braun Edward Teller ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nylon is a type of Polyamide Polyolefin Acrylic Polyester Polyamide Polyolefin Acrylic Polyester ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper is refined by Zone refining Electrolysis Oxidation Roasting Zone refining Electrolysis Oxidation Roasting ANSWER DOWNLOAD EXAMIANS APP
Chemistry 24 carat of diamond is equal to 200 g 95% mg 200 mg 91% gold 200 g 95% mg 200 mg 91% gold ANSWER DOWNLOAD EXAMIANS APP
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