Advertisements
Advertisements
प्रश्न
In what form do noble gases occur in nature?
Advertisements
उत्तर
Noble gases occur in nature as a monoatomic gas.
APPEARS IN
संबंधित प्रश्न
Write down the name of a compound represented by the following formula:
K2SO4
Give the name of the element present in the following compound:
Quick lime
Calculate the number of molecules of sulphur (S8) present in 16 g of solid sulphur.
What are (i) ionic compounds, and (ii) molecular compounds ? Give two examples of each type of compounds.
An element X forms the following compounds with hydrogen, carbon and oxygen :
H2X, CX2, XO2, XO3
State the three valencies of element X which are illustrated by these compounds.
Give a reason why –
Helium is considered monoatomic, but hydrogen a diatomic molecule.
Give a reason why –
Ozone is considered triatomic, but phosphorus a tetratomic molecule.
Which of the following is a triatomic molecule?
Two elements sometimes can form more than one compound.
Give any two examples for heterodiatomic molecules.
