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प्रश्न
What would be the electron dot structure of a molecule of sulphur which is made up of eight atoms of sulphur? (Hint – the eight atoms of sulphur are joined together in the form of a ring.)
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उत्तर
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संबंधित प्रश्न
Name the element whose one of the allotropic forms is buckminsterfullerene.
Buckminsterfullerene is spherical molecule in which 60 carbon atoms are arranged in interlocking hexagonal and pentagonal rings of carbon atoms.
How many hexagons of carbon atoms are present in one molecule of buckminsterfullerene?
Give one example of a molecule containing a triple covalent bond.
what substance is graphite made?
One of the following compounds is not ionic in nature. This compound is:
(a) Lithium chloride
(b) Ammonium chloride
(c) Calcium chloride
(d) Carbon tetrachloride
Define a covalent bond.
For each compound mentioned above give the formulae of ions formed in aqueous solution.
Explain the following briefly:
Cl2 is a non polar molecule, while HCl is a polar molecule.
Give examples for the following:
Two gaseous polar compounds.
What is the term defined below?
A bond formed by a shared pair of electrons, each bonding atom contributing one electron to the pair.
Draw the electron dot structure of covalent compound methane (non polar) and HCL (polar) and give two difference between them.
Name two compounds that are covalent when taken pure but produce ions when dissolved in water.
In the formation of electrovalent compounds, electrons are transferred from one element to another. How are electrons involved in the formation of a covalent compound?
Write an Explanation.
Alkene
Write a short note.
Characteristics of carbon
Discuss in brief about the properties of coordinate covalent compounds.
When ethyl alcohol and acetic acid are mixed, the resulting ester has a chemical formula ______.
Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e.g., hydrogen. After the formation of four bonds, carbon attains the electronic configuration of ______.
Assertion (A): Melting point and boiling point of ethanol are lower than that of sodium chloride.
Reason (R): The forces of attraction between the molecules of ionic compounds are very strong.
