In which among the following categories, Radon (Rn) can be placed? 1. Radioactive Element 2. Inert Gas 3. Noble Gas Choose the correct option: [A]Only 1 [B]1 &...
When a tubelight breaks, a cracking sound is produced because ____? [A]Pressure inside the lamp is less than atmospheric pressure [B]Pressure inside the lamp is more than atmospheric...
Which among the following is the objective of the Methyl tert-butyl ether (MTBE) mixing with Petroleum? [A]Raise Octane Number [B]Antioxidant Stabilizer [C]Lead Scavanger [D]Fuel Dye Show Answer Raise...
The most important contributor of sea salt is ____? [A]Rivers [B]Salty Rocks at bottom of sea [C]Aquatic animals in Sea [D]Atmosphere around sea Show Answer Rivers
Which among the following is an example of a Chemical Change? [A]Rusting of iron [B]Magnetisation of iron [C]Melting of iron [D]Heating of iron Show Answer Rusting of iron
Which among the following elemtns are generally find in free state? [A]Group 11 elements [B]Group 12 elements [C]Group 13 elements [D]Group 14 elements Show Answer Group 11 elements
Which among the following would cause the bright red colur due to bursting of crackers? [A]Strontium [B]Sodium [C]Sulphur [D]Magnesium Show Answer Strontium
Which among the following scientists had discovered Radium? [A]Marie Sklodowska-Curie and Pierre Curie [B]Andre-Louis Debierne [C]Kasimir Fajans [D]Oswald Helmuth Gohring Show Answer Marie Sklodowska-Curie and Pierre Curie
