Open App

JEE Exam > JEE Videos > Chemistry for JEE Main & Advanced > Alkali Metal Trends (Part- 1)

Alkali Metal Trends (Part- 1) Video Lecture | Chemistry for JEE Main & Advanced

FAQs on Alkali Metal Trends (Part- 1) Video Lecture - Chemistry for JEE Main & Advanced

1. What are alkali metals?

Ans. Alkali metals are a group of chemical elements that belong to Group 1 of the periodic table. These elements include lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). They are highly reactive metals and are known for their low melting points and softness.

2. What are the trends in the physical properties of alkali metals?

Ans. Alkali metals exhibit certain trends in their physical properties as we move down the group. These trends include increasing atomic size, decreasing ionization energy, decreasing electronegativity, and decreasing melting and boiling points. Additionally, the reactivity of alkali metals increases as we move down the group.

3. Why do alkali metals have low melting and boiling points?

Ans. Alkali metals have low melting and boiling points due to the presence of weak metallic bonds between their atoms. These weak metallic bonds are formed by the delocalized electrons, which are not tightly held by the positive metal ions. As a result, it takes less energy to overcome these weak bonds and convert the solid metal into a liquid or a gas.

4. How do alkali metals react with water?

Ans. Alkali metals react vigorously with water, releasing hydrogen gas and forming metal hydroxides. The reaction becomes more vigorous as we move down the group. For example, lithium reacts slowly with water, while sodium reacts more violently and potassium reacts explosively. This reaction is highly exothermic and can lead to the formation of alkaline solutions.

5. What is the significance of alkali metals in everyday life?

Ans. Alkali metals have several significant applications in everyday life. For example, sodium is used in the production of soap, while potassium is an essential nutrient for plants and is commonly found in fertilizers. Lithium is used in batteries, and rubidium and cesium have applications in atomic clocks and GPS systems. Overall, alkali metals play a crucial role in various industries and technological advancements.

About this Video

1.3K Views

4.94/5 Rating

Oct 06, 2025 Last updated

Related Exams

JEE

Video Description: Alkali Metal Trends (Part- 1) for JEE 2025 is part of Chemistry for JEE Main & Advanced preparation. The notes and questions for Alkali Metal Trends (Part- 1) have been prepared according to the JEE exam syllabus. Information about Alkali Metal Trends (Part- 1) covers all important topics for JEE 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Alkali Metal Trends (Part- 1).

Introduction of Alkali Metal Trends (Part- 1) in English is available as part of our Chemistry for JEE Main & Advanced for JEE & Alkali Metal Trends (Part- 1) in Hindi for Chemistry for JEE Main & Advanced course. Download more important topics related with notes, lectures and mock test series for JEE Exam by signing up for free.

Description

Video Lecture & Questions for Alkali Metal Trends (Part- 1) Video Lecture | Chemistry for JEE Main & Advanced - JEE full syllabus preparation | Free video for JEE exam to prepare for Chemistry for JEE Main & Advanced.

Information about Alkali Metal Trends (Part- 1)

Here you can find the meaning of Alkali Metal Trends (Part- 1) defined & explained in the simplest way possible. Besides explaining types of Alkali Metal Trends (Part- 1) theory, EduRev gives you an ample number of questions to practice Alkali Metal Trends (Part- 1) tests, examples and also practice JEE tests.

	Chemistry for JEE Main & Advanced 334 videos\|656 docs\|300 tests

Chemistry for JEE Main & Advanced

334 videos|656 docs|300 tests

Join Course for Free

Explore Courses for JEE exam

video lectures