Which element is preserved under the water?
Which element is preserved under the water? A. Red phosphorus B. Sodium C. White phosphorus D. Sulphur C. White phosphorusWhite phosphorus undergoes spontaneous combustion when exposed …
Chemistry
All noble gas molecules are which type?
All noble gas molecules are which type? A. Diatomic B. Monoatomic C. Triatomic D. Non of the above B. MonoatomicNoble gas molecules are monoatomic. Noble gases …
The Long Form of the Periodic Table is based on?
The Long Form of the Periodic Table is based on? A. Atomic number B. Atomic radius C. Atomic mass D. Valency A. Atomic numberThe long …
Which non-metal has a shining appearance ?
Which non-metal has a shining appearance? A. Phosphorus B. Sulphur C. Iodine D. Bromine C. IodineNon metals usually have a dull appearance.This is a physical …
What is triple point of Water?
The term “triple point” was coined in 1873 by James Thomson, brother of Lord Kelvin. The triple point occurs where the solid, liquid, and gas transition curves …
What is Evaporation?
Evaporation, also known as vaporisation, is the process by which a substance transforms into a gas as a result of increased energy in its particles. …