Two reactants in a flask at room temperature are producing bubbles of a gas that turn limewater milky. The reactants could be
zinc and hydrochloric acid
magnesium carbonate and hydrochloric acid
methane and oxygen
copper and dilute hydrochloric 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