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प्रश्न
State any two uses of diamond.
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उत्तर
Uses of diamonds:
(1) As diamonds have an extraordinary shine, they are used in making jewellery.
(2) Diamonds, due to their hardness, are used in instruments like glass cutters, grinders. They are also used as abrasives for polishing.
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संबंधित प्रश्न
Explain the nature of the covalent bond using the bond formation in CH3Cl.
State the type of bonding in the following molecule.
Water
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?
will CCl4 conduct electricity or not?
give reason for your choice.
What is graphite?
what substance is graphite made?
The number of isomers formed by the hydrocarbon with molecular formula C5H12 is:
(a) 2
(b) 5
(c) 3
(d) 4
What is the difference between ionic compounds and polar covalent compounds?
Explain the following term with example.
Homopolymer
Write answer as directed.
What causes the existance of very large number of carbon compound ?
The carbon compound is used in daily life is ______.
Element A has 2 electrons in its M shell. Element B has atomic number 7.
Write equations to show how A and B form ions.
Taking MgCl2 as an electrovalent compound, CCl4 as a covalent compound, give four difference between electrovalent and covalent compounds
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
| \[\begin{array}{cc} \phantom{.........}\ce{H}\\ \phantom{.........}|\\ \ce{H - C ≡ C - C - H}\\ \phantom{.........}|\\ \phantom{.........}\ce{H} \end{array}\] |
Give an example for each of the following statement.
Formation of coordinate covalent bond between NH3 ➝ BF3 molecules
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 ______.
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
The bond which is formed by the mutual sharing of electrons is called ______ bond.
What is a covalent bond?
