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Scientists from Ulsan National Institute of Science and Technology (UNIST) in South Korea have developed a system that can produce electricity and hydrogen fuel from carbon dioxide. The Hybrid Na-CO2 system can continuously produce electrical energy and hydrogen through efficient carbon dioxide (CO2) conversion with stable operation for over 1,000 hours. The key to this ..
HFCs are used as refrigerants and coolants in refrigerators and air-conditioners, in fire extinguishers, furniture making, as solvents for cleaning, and other purposes. CFCs and later HCFCs were being used for everything that HFCs are used now for, but it was found that these were depleting the ozone layer, which protects life on earth from ..
Click Here to Visit all updated Chemistry Questions 1. Which among the following methods can be used to remove the permanent hardness in water due to calcium or magnesium sulphates? [A]Sulphonate method [B]Nitrate method [C]Zeolite method [D]None of these Zeolite method Show Answer 2. Which among the following is the main constituent of Biogas? [A]Methane ..