Advertisements
Advertisements
प्रश्न
What do the following denote ?
- N
- 2N
- N2
- 2N2
टिप्पणी लिखिए
Advertisements
उत्तर
- N refers to an atom of nitrogen.
- 2N represents two atoms of nitrogen which are not chemically bonded.
- N2 refers to a molecule of nitrogen gas. Two atoms of nitrogen chemically bond to give a molecule of nitrogen gas.
- 2N2 refers to two molecules of nitrogen gas.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Write down the name of a compound represented by the following formula:
Al2(SO4)3
Write the formulae of the following compounds. Also name the elements present in them.
- Water
- Ammonia
- Methane
- Sulphur dioxide
- Ethanol
In what form do noble gases occur in nature?
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.
Calculate the mass of 3.011 × 1024 atoms of carbon.
Give a reason why –
Ozone is considered triatomic, but phosphorus a tetratomic molecule.
State the atomicity of the following:
Chlorine
State the atomicity of the following:
Sulphur
The Atomicity of phosphorous is ______
Two elements sometimes can form more than one compound.
