Podcast
Questions and Answers
What is the ionic radius of H⁻ ion in picometers?
What is the ionic radius of H⁻ ion in picometers?
- 250
- 180
- 170
- 210 (correct)
What is the minimum temperature required to dissociate dihydrogen into hydrogen atoms?
What is the minimum temperature required to dissociate dihydrogen into hydrogen atoms?
- 2000 K (correct)
- 2500 K
- 1500 K
- 1800 K
What is the purpose of passing dihydrogen through vegetable oils at about 473 K?
What is the purpose of passing dihydrogen through vegetable oils at about 473 K?
- To form solid fats (correct)
- To form hydrogen gas
- To form hydrogen chloride
- To form hydrogen peroxide
What is the electron affinity of hydrogen in kJ mol⁻¹?
What is the electron affinity of hydrogen in kJ mol⁻¹?
What is the use of dihydrogen in the oxy-hydrogen torch?
What is the use of dihydrogen in the oxy-hydrogen torch?
What is the product formed when dihydrogen reacts with calcium?
What is the product formed when dihydrogen reacts with calcium?
What is the systematic name of water?
What is the systematic name of water?
Which of the following metals react with water at room temperature to produce hydrogen?
Which of the following metals react with water at room temperature to produce hydrogen?
What is the product of the reaction between sodium hydride and water?
What is the product of the reaction between sodium hydride and water?
What is the catalyst used in the Bosch process for the production of dihydrogen?
What is the catalyst used in the Bosch process for the production of dihydrogen?
Which of the following is a characteristic of hydrogen similar to halogens?
Which of the following is a characteristic of hydrogen similar to halogens?
What is the oxidation state of hydrogen in its compounds?
What is the oxidation state of hydrogen in its compounds?
What is the byproduct of the reaction between metal hydride and water?
What is the byproduct of the reaction between metal hydride and water?
Which of the following pairs of hydrogen isotopes are harmless?
Which of the following pairs of hydrogen isotopes are harmless?
What is the role of hydrogen peroxide in the production of spong rubber?
What is the role of hydrogen peroxide in the production of spong rubber?
What is the application of hydrogen peroxide in the detection of certain metal ions?
What is the application of hydrogen peroxide in the detection of certain metal ions?
What is the use of hydrogen peroxide in pollution control?
What is the use of hydrogen peroxide in pollution control?
What is the application of hydrogen peroxide in the synthesis of certain compounds?
What is the application of hydrogen peroxide in the synthesis of certain compounds?
What is the primary characteristic of water that enables it to form hydrates with metal salts?
What is the primary characteristic of water that enables it to form hydrates with metal salts?
What is the term for water molecules that occupy interstitial sites in the crystal lattice of a compound?
What is the term for water molecules that occupy interstitial sites in the crystal lattice of a compound?
What is the value of the ionization constant of water at 25°C?
What is the value of the ionization constant of water at 25°C?
What is the primary difference between hard and soft water?
What is the primary difference between hard and soft water?
What is a characteristic of water's chemical properties that allows it to act as both an acid and a base?
What is a characteristic of water's chemical properties that allows it to act as both an acid and a base?
What is the term for the heat required to change the state of water from liquid to gas at 373K?
What is the term for the heat required to change the state of water from liquid to gas at 373K?
What is the temperature at which water has maximum density?
What is the temperature at which water has maximum density?
Which of the following compounds can be prepared using heavy water (D2O)?
Which of the following compounds can be prepared using heavy water (D2O)?
What is the nature of water's chemical reactions?
What is the nature of water's chemical reactions?
What is the result of water's hydrolytic reaction with metal oxides?
What is the result of water's hydrolytic reaction with metal oxides?
What is the term for the point at which water is in equilibrium with ice and vapour?
What is the term for the point at which water is in equilibrium with ice and vapour?
What is the molecular mass of heavy water (D2O)?
What is the molecular mass of heavy water (D2O)?
What is the primary reason for the high bond dissociation energy of dihydrogen?
What is the primary reason for the high bond dissociation energy of dihydrogen?
What is the characteristic of dihydrogen that allows it to react with transition metals?
What is the characteristic of dihydrogen that allows it to react with transition metals?
What is the significance of the temperature of 2000 K in the context of dihydrogen?
What is the significance of the temperature of 2000 K in the context of dihydrogen?
What is the application of the process of passing dihydrogen through vegetable oils at about 473 K?
What is the application of the process of passing dihydrogen through vegetable oils at about 473 K?
What is the significance of the ionisation energy of hydrogen?
What is the significance of the ionisation energy of hydrogen?
What is the characteristic of dihydrogen that makes it a useful reducing agent?
What is the characteristic of dihydrogen that makes it a useful reducing agent?
