Which one of the following statements is NOT correct?
Half mole of nitrogen gas is measured 11.2 litre at STP
17 gram of ammonia gas contains 6-022 × 1023 molecules at STР
22.4 litre of CO2 gas at STP contains 44 gram of molecules
4 gram of hydrogen gas contains 6-022 × 1023 molecules
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