Chemistry
Property of Matter and their Classification
We are to use various materials in doing different work. We use of thousand of materials, starting with the water to wash our hands and…
Qualitative Chemistry
Chemistry
Why the Density of Ice is Lower than Water?
Each ice crystal may be considered as a giant molecule. In ice, each oxygen atom is linked to four hydrogen atoms- two of them by…
Chemistry
What is Van dar Waals Force?
The force of attraction among the molecules of non polar covalent compounds is known as Van der Waals force. Van der Waals force is very…
Chemistry
What is Pi (π) Bond?
Pi (π) bond: When two orbitals of two atoms overlap sidewise to form a covalent bond, the resulting bond is known as π-bond. It is…
Chemistry
Explain Uses of Noble Gas
Uses of Noble Gas: (A) HELIUM Because of its lightness and non-inflammability helium is used to filling balloons for meteorological observations. Because of its lightness,…
Chemistry
Separation of Noble Gases in Dewar’s Method
The individual noble gases can be separated by Dewar Charcoal adsorption method. The principle involved in Dewar’s method: Activated coconut charcoal adsorbs all the Noble…
Chemistry
Explain Isolation of Noble Gases in Ramsay-Raleigh’s Method
The noble gases are isolated from air by removing oxygen and nitrogen from air free from carbon-di-oxide, water vapor, dust particles, etc. These are chemical…
Chemistry
Define and Describe on Noble Gases or Inert Gases
Group 18 of the periodic table consists of helium, neon, argon, krypton, xenon and radon. All these are gases under ordinary conditions of temperature and…
Chemistry
Laboratory Preparation of Xenon Fluoride Compounds
Xenon forms three binary Fluorides XeF2, XeF4, and XeF6 by the direct union of elements under appropriate experimental conditions. PROPERTIES: Xe F2, Xe F4 and…
Chemistry
Why Silver Fluoride is Soluble in Water but Silver Chloride not Soluble?
Ionic compounds are generally soluble in polar solvents like water, covalent compounds are not. So if the anion of any salt is very much polarized,…
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