Chemistry Which among the following is used to dilute oxygen in the gas cylinders used by divers ? Helium Neon Krypton Argon Helium Neon Krypton Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not soluble in water ? Zinc sulphate Potassium sulphate Lead Sulphate Sodium sulphate Zinc sulphate Potassium sulphate Lead Sulphate Sodium sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a chemical reaction'? Burning of paper Conversion of water into steam Digestion of food Burning of coal Burning of paper Conversion of water into steam Digestion of food Burning of coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Preparation of ‘Dalda or Vanaspati’ ghee from vegetable oil utilizes the following process : Hydrolysis Ozonolysis Hydrogenation Oxidation Hydrolysis Ozonolysis Hydrogenation Oxidation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Detergents clean surfaces on the principle of Floatation Viscosity Elasticity Surface tension Floatation Viscosity Elasticity Surface tension ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxygen has (+) oxidation number only in H2O (2) N2O C12O OF2 H2O (2) N2O C12O OF2 ANSWER DOWNLOAD EXAMIANS APP
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