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प्रश्न
Name the hardest natural substance known.
उत्तर
Diamond is the hardest natural substance known.
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संबंधित प्रश्न
What type of bonds are present in water molecule? Draw the electron-dot structure of water (H2O).
What type of bonds are present in CO2 molecule? Draw their electron-dot structures.
What type of chemical bonds are formed by carbon? Why?
What type of chemical bond is present in chlorine molecule? Explain your answer.
Which inert gas does the H atom in HCl resemble in electron arrangement?
Explain why, graphite can be used as a lubricant but diamond cannot.
what substance is graphite made?
State any two uses of graphite.
State the type of bonding in the following molecule.
Hydroxyl ion
State the type of bonding in the following molecule.
Methane
Draw an electron dot structure of the following molecule. (Without showing the circle) :
Water
What do you understand by dipole (polar) molecule?
What are Allotropes? Name any two allotropic forms of carbon. Give one use of it.
Write the molecular formula of the given compound.
Acetic acid
List two differences between the properties exhibited by covalent compounds and ionic compounds.
`"CH"_3 - "CH"_2 - "OH" overset("Alkaline""KMnO"_4 + "Heat")(->) "CH"_3 - "COOH"`
In the above given reaction, alkaline KMnO4 acts as
______ is an example of a covalent compound having a high melting point.
In covalent bond formation, the sharing of ______ electrons takes place in their outermost shell.
Show the covalent bond formation in nitrogen molecule.
Explain dipole (polar) molecule by taking hydrogen chloride as an example.
