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प्रश्न
Name the element whose one of the allotropic forms is buckminsterfullerene.
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उत्तर
Carbon has buckminsterfullerene as one of its allotropes.
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संबंधित प्रश्न
Write the electron-dot structure for the following molecule.
Cl2
Fill in the blank in the following sentence:
Two chlorine atoms combine to form a molecule. The bond between them is known as ..........
Why does carbon form compounds mainly by covalent bonding?
Draw the electron-dot structure of H2O compound and state the type of bonding.
Write two points of difference in the structures of diamond and graphite.
The organic compound prepared by Wohler from an inorganic compound called ammonium cyanate was:
(a) glucose
(b) urea
(c) uric acid
(d) vinegar
Draw all possible structural formulae of compound from their molecular formula given below.
C3H8
The electronic configuration of N2 is 2, 5. How many electrons in the outer shell of a N atom are not involved in the formation of a nitrogen molecule?
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)
Draw the electron dot diagram and structure of nitrogen molecule.
Name two compounds that are covalent when taken pure but produce ions when dissolved in water.
Covalent bonds can be single, double or triple covalent bonds. How many electrons are shared in each? Give an example of each type.
Your body is made up of carbon.
Give an example for each of the following statement.
Formation of coordinate covalent bond between NH3 ➝ BF3 molecules
Identify the incorrect statement and correct them.
- Like covalent compounds, coordinate compounds also contain charged particles (ions). So they are good conductors of electricity.
- Ionic bond is a weak bond when compared to Hydrogen bond.
- Ionic or electrovalent bonds are formed by mutual sharing of electrons between atoms.
- Loss of electrons is called Oxidation and gain of electron is called Reduction.
- The electrons which are not involved in bonding are called valence electrons.
Which of the following is the formula of Butanoic acid?
A molecule of ammonia (NH3) has
"Carbon prefers to share its valence electrons with other atoms of carbon or with atoms of other elements rather than gaining or losing the valence electrons in order to attain noble gas configuration." Give reasons to justify this statement.
