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प्रश्न
Fill in the blank in the following sentence:
Two atoms of the same element combine to form a molecule. The bond between them is known as ................ bond.
उत्तर
Two atoms of the same element combine to form a molecule. The bond between them is known as a covalent bond.
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संबंधित प्रश्न
Write any three features and give two examples of covalent compounds
Give one example of a molecule containing a triple covalent bond.
Give two general properties of ionic compounds and two those of covalent compounds.
Draw the electron-dot structure of N2 and state the type of bonding.
The molecules having triple bond in them are:
(a) oxygen and ethyne
(b) carbon dioxide and ammonia
(c) methane and ethene
(d) nitrogen and ethyne
The organic compound prepared by Wohler from an inorganic compound called ammonium cyanate was:
(a) glucose
(b) urea
(c) uric acid
(d) vinegar
What is the difference between ionic compounds and polar covalent compounds?
Give two example in following case:
Gaseous non polar compounds
Draw an electron dot structure of the following molecule. (Without showing the circle) :
Methane
Draw an electron dot structure of the following molecule. (Without showing the circle) :
Ethene
Explain the following briefly:
Cl2 is a non polar molecule, while HCl is a polar molecule.
Explain the following:
Non-polar covalent compounds are insoluble in water.
Explain why Carbon tetrachloride does not dissolve in water.
Draw an electron dot diagram to show the formation of the following compound.
Magnesium chloride [ H=1, C=6, Mg=12, Cl=17].
Acids dissolve in water and produce positively charged ions. Draw the structure of these positive ions.
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
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Considering MgCl2 as ionic compound and CH4 as covalent compound give any two differences between these two compounds.
Give an example for each of the following statement.
Formation of coordinate covalent bond between NH3 ➝ BF3 molecules
"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.
Explain dipole (polar) molecule by taking hydrogen chloride as an example.
