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Chemical Properties of Alkanes - 2 Video Lecture | Chemistry Class 11 - NEET

FAQs on Chemical Properties of Alkanes - 2 Video Lecture - Chemistry Class 11 - NEET

1. What are the chemical properties of alkanes?

Ans. Alkanes are hydrocarbons that consist of only single bonds between carbon atoms. Their chemical properties include low reactivity, combustion in the presence of oxygen to produce carbon dioxide and water, and resistance to acids and bases.

2. How do alkanes react with oxygen?

Ans. Alkanes undergo combustion reactions when exposed to oxygen. This reaction produces carbon dioxide and water as byproducts. The combustion of alkanes is exothermic, releasing a large amount of heat energy.

3. Can alkanes react with acids?

Ans. Alkanes are generally unreactive towards acids. Due to their nonpolar nature and the absence of functional groups, alkanes do not undergo typical acid-base reactions. They are, however, compatible with certain strong acids under specific conditions.

4. Do alkanes react with bases?

Ans. Alkanes are generally unreactive towards bases. Since alkanes lack functional groups and do not contain any acidic hydrogen atoms, they do not undergo typical base-catalyzed reactions. However, under certain conditions, alkanes can react with strong bases like sodium or potassium hydroxide.

5. What happens to alkanes when exposed to halogens?

Ans. Alkanes can undergo halogenation reactions when exposed to halogens such as chlorine or bromine. In these reactions, one or more hydrogen atoms in the alkane are replaced by halogen atoms. This substitution reaction is an example of the free radical mechanism, where the halogen acts as a radical initiator.

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