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Question
What is the difference between ionic compounds and polar covalent compounds?
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Solution
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.
RELATED QUESTIONS
The number of isomers formed by the hydrocarbon with molecular formula C5H12 is:
(a) 2
(b) 5
(c) 3
(d) 4
The number of carbon atoms joined in a spherical molecule of buckminsterfullerene is:
(a) fifty
(b) sixty
(c) seventy
(d) ninety
Elements forming ionic compounds attain noble gas electronic configuration by either gaining or losing electrons from their valence shells. Explain giving reason why carbon cannot attain such a configuration in this manner to form its compounds. Name the type of bonds formed in ionic compounds and in the compounds formed by carbon. Also explain the reason why carbon compounds are generally poor conductors of electricity.
Draw all possile structural formulae of compound from their molecular formula given below.
C3H4
Explain the Structural isomerism term with example.
Which of the following is a common characteristic of a covalent compound?
Give an example of the covalent bond formed by
(i) Similar atoms (ii) Dissimilar atoms
Which of the following compound(s) possesses a high melting point?
Name the following:
\[\ce{CH3 - CH2CH = CH2}\]
