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प्रश्न
The pencil leads are made of mainly:
(a) lithium
(b) charcoal
(c) lead
(d) graphite
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उत्तर
graphite
The pencil leads are mainly made of graphite.
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संबंधित प्रश्न
Why covalent compounds are different from ionic compounds?
Name the element whose one of the allotropic forms is buckminsterfullerene.
What type of bond is present in oxygen molecule?
Give one example, state what are covalent compounds?
Explain why, diamond can be used in rock drilling equipment but graphite cannot.
What is graphite?
Two non-metals combine with each other by the sharing of electrons to form a compound X.
(a) What type of chemical bond is present in X?
(b) State whether X will have a high melting point or low melting point.
(c) Will it be a good conductor of electricity or not?
(d) Will it dissolve in an organic solvent or not?
State the type of bonding in the following molecule.
Ammonium ion
Fill in the blank from the choice given in bracket.
The compound that does not have a lone pair of electrons is ___________. (Water, Ammonia, carbon tetrachloride)
What is the difference between a polar covalent compound and a non-polar covalent compound?
Fill in the blank and rewrite the completed statement:
Covalent compounds are generally soluble in _________ solvents.
Write the molecular formula of the given compound.
Propylene
Write an Explanation.
Alkyne
Give an example for each of the following statement
A compound in which two Covalent bonds are formed.
Which of the following is the formula of Butanoic acid?
`"CH"_3 - "CH"_2 - "OH" overset("Alkaline""KMnO"_4 + "Heat")(->) "CH"_3 - "COOH"`
In the above given reaction, alkaline KMnO4 acts as
Statement (A): Covalent compounds are bad conductors of electricity.
Reason (B): Covalent compounds contain charged particles (ions)
Name the following:
\[\ce{CH3 - CH2CH = CH2}\]
