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प्रश्न
What is the difference between ionic compounds and polar covalent compounds?
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उत्तर
Ionic compound:
- They usually have high melting points and boiling points.
- They are soluble in water. (NaCl)
- They often conduct electricity in a molten state.
- They are usually crystalline solids.
Polar covalent compound:
- Atoms do not have an equal distribution of shared electron pairs.
- They ionise in water.
- They are not electrically neutral.
- Bond is formed between dissimilar atoms such as H2O, NH3, HCl.
संबंधित प्रश्न
State the type of bonding in the following molecule.
Water
Explain why, ionic compounds conduct electricity in solution whereas covalent compounds do not conduct electricity.
Out of KCl, HCl, CCl4 and NaCl, the compounds which are not ionic are:
(a) KCl and HCl
(b) HCl and CCl4
(c) CCl4 and NaCl
(d) KCl and CCl4
One of the following contains a double bond as well as single bonds. This is:
(a) CO2
(b) O2
(c) C2H4
(d) C2H2
Draw an electron dot structure of the following molecule. (Without showing the circle) :
Ethene
Molecular formula of Propane is C3H8 , write the structural formula of propane.
Taking MgCl2 as an electrovalent compound, CCl4 as a covalent compound, give four difference between electrovalent and covalent compounds
Define a covalent bond.
Acetic acid was added to a solid X kept in a test tube. A colourless, odourless gas Y was evolved. The gas was passed through lime water, which turned milky. It was concluded that ______.
Which of the following statements are usually correct for carbon compounds? These
- are good conductors of electricity
- are poor conductors of electricity
- have strong forces of attraction between their molecules
- do not have strong forces of attraction between their molecules.
