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Physical Properties of Alkanes Video Lecture | Chemistry for EmSAT Achieve

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FAQs on Physical Properties of Alkanes Video Lecture - Chemistry for EmSAT Achieve

1. What are the physical properties of alkanes?
Ans. Alkanes are nonpolar molecules with low boiling points, low solubility in water, and are less dense than water. They are also colorless and odorless.
2. How do the physical properties of alkanes change as the carbon chain length increases?
Ans. As the carbon chain length of alkanes increases, their boiling points also increase due to stronger London dispersion forces. The solubility in water decreases and the density increases.
3. Why are alkanes considered to have low reactivity?
Ans. Alkanes are considered to have low reactivity because they have strong C-C and C-H bonds which are difficult to break. They do not readily undergo chemical reactions with most common reagents.
4. How do the physical properties of alkanes compare to alkenes and alkynes?
Ans. Alkanes are nonpolar molecules with only single bonds, while alkenes have double bonds and alkynes have triple bonds. Alkenes and alkynes have higher reactivity compared to alkanes due to the presence of double or triple bonds.
5. Can alkanes conduct electricity?
Ans. No, alkanes are nonpolar molecules and do not conduct electricity. They do not have any charged particles that can move to carry an electric current.
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