What is the chemical composition of a soda-acid type fire extinguisher?
Solution of sodium hydrogen carbonate and sulfuric acid
Solution of sodium carbonate and sulfuric acid
Solution of carbon dioxide and sulfuric acid
Solution of sodium chloride and sulfuric acid
For election to the Lok Sabha, a nomination paper can be filed by
Miscellaneous · Easy
In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
Miscellaneous · Easy
Which among the following events happened earliest ?
Miscellaneous · Easy
An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
Miscellaneous · Easy