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Chemical Properties of Alkaline Earth Metals Video Lecture | Chemistry Class 11 - NEET

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FAQs on Chemical Properties of Alkaline Earth Metals Video Lecture - Chemistry Class 11 - NEET

1. What are the chemical properties of alkaline earth metals?
Ans. Alkaline earth metals have several chemical properties. They are highly reactive, but less reactive than alkali metals. They have a low electron affinity and ionization energy, making them more likely to lose electrons and form positive ions. They react with nonmetals to form ionic compounds and with water to produce alkaline solutions.
2. How do alkaline earth metals react with water?
Ans. Alkaline earth metals react with water to produce alkaline solutions. For example, when calcium reacts with water, it forms calcium hydroxide and hydrogen gas. This reaction is exothermic and releases heat. The alkaline solution formed is basic in nature.
3. What are the common uses of alkaline earth metals?
Ans. Alkaline earth metals have various applications. Some common uses include the use of magnesium in alloys for lightweight construction and in fireworks for a bright white light. Calcium is used in the production of cement and as a dietary supplement. Strontium is used in fireworks to produce red colors, and barium compounds are used in various industries, including the production of glass and ceramics.
4. How do alkaline earth metals form compounds with nonmetals?
Ans. Alkaline earth metals readily form compounds with nonmetals through ionic bonding. They lose their outermost 2 electrons to achieve a stable electron configuration, while nonmetals gain these electrons to achieve a stable configuration. The resulting compounds are typically ionic and have high melting and boiling points.
5. What are some similarities and differences between alkaline earth metals and alkali metals?
Ans. Alkaline earth metals and alkali metals have some similarities and differences. Both groups are highly reactive and readily form ions with a positive charge. However, alkaline earth metals are less reactive than alkali metals. Alkaline earth metals have a higher melting and boiling point than alkali metals. Additionally, alkaline earth metals have a lower ionization energy and electron affinity compared to alkali metals.
195 videos|337 docs|190 tests

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