NEET Important Questions: D and F Block Elements

1. General Introduction:

These elements, often called transition metals, are like the cool kids in the chemical world. They bring color, magnetism, and versatility to the periodic stage. This introduction unravels their unique properties and electron-filling style, setting the stage for a chemical performance full of surprises. Understanding the D and F block elements is like getting to know the intriguing characters that add flair and complexity to the fascinating storyline of the periodic table.

2. Electronic Configuration:

Each element has its own electron choreography, determining its chemical personality. Picture it as a cosmic dance floor where electrons twirl in specific orbits. The electronic configuration is like decoding their elegant moves, showcasing the energy levels and sublevels where they groove. Understanding this chapter is like learning the unique dance routines of chemical elements, uncovering the mesmerizing patterns that define their place in the grand choreography of the periodic table.

3. Characteristics of Transition Metals:

These elements exhibit a distinctive blend of strength, color, and adaptability, serving as the chemical workhorses in various reactions. Think of them as the versatile artisans of chemistry, creating vibrant compounds, conducting electricity, and catalyzing reactions. Understanding the characteristics of transition metals unveils their exceptional attributes, transforming them into pivotal contributors to the chemical landscape. It's an exciting exploration of the extraordinary traits that define these elements as essential players in the intricate tapestry of chemistry.

4. General Trends of the Properties of the First Row Elements - Metallic Character:

Picture them as the all-stars in the periodic table lineup. This chapter reveals their shared traits, like their metallic character, akin to a team spirit that unites them. It explores how these elements shine with metal-like qualities—conducting heat and electricity, exhibiting luster, and being malleable. Understanding these general trends is like deciphering the collective chemistry language that defines the fantastic team dynamics of the first-row transition metals.

5. Ionization Enthalpy:

This concept gauges how much energy it takes to turn an atom into a charged hero by removing an electron. Think of it as a superhero training ground – the higher the ionization enthalpy, the more resistant the atom is to losing its electron cape. Understanding this chapter is like unraveling the resilience of atoms, a crucial factor in predicting their chemical behavior. It's a peek into the atomic fitness regime, showcasing the energy needed for these microscopic heroes to unleash their charged potential in chemical reactions.

6. Oxidation States:

Each element can wear different oxidation state costumes, indicating its charge in a compound. Picture it as a wardrobe with multiple outfits, each reflecting the element's electron-sharing style. Understanding oxidation states is like discovering the diverse roles elements play in chemical reactions – whether they share electrons generously or play it close to the vest. It's a fascinating journey into the elemental fashion show, unraveling the dynamic chemistry behind the changing identities of elements in the complex dance of chemical combinations.

7. Ionic Radii:

When atoms become ions, they join a cosmic dance, each with a different-sized orbit. This chapter reveals the invisible force fields defining their dance zones. Smaller ions like to keep it cozy, while larger ions need more room. Understanding ionic radii is like seeing the elegant choreography of ions in a chemical dance. It's a peek into how their size influences the graceful interplay in the fascinating world of chemistry. 

8. Colour:

Picture it as a cosmic art gallery where elements showcase their hues. This chapter unveils the secret behind their vivid colors, revealing how electrons dance to create this visual spectacle. It's like understanding the unique brushstrokes of electrons that paint the atomic canvas. From fiery reds to cool blues, each color tells a tale of the electron's energy dance. 

9. Catalytic Property:

Catalysis is their superpower, speeding up chemical reactions without getting consumed. Imagine elements as friendly wizards in a cauldron, stirring the potion faster and making things happen. This chapter unveils their incredible ability to play the role of chemical matchmakers, bringing reactants together for a speedy reaction dance.

10.  Magnetic Properties:

Picture it as a cosmic game of attraction, where elements become magnetic superstars. This chapter unveils their secret magnetism, explaining how certain elements become magnetic when dancing with electrons. It's like discovering the invisible forces that make some elements magnetic rockstars while others remain indifferent. 

11.  Interstitial Compounds:

Imagine atoms as partygoers with a specific spot on the dance floor. Interstitial compounds are the lively ones fitting into the spaces between, not taking over but adding energy. This chapter uncovers the dynamic chemistry where smaller atoms cleverly join, creating stable compounds. Understanding interstitial compounds is like seeing how elements party together, making chemistry even more exciting.

12.  Alloy Formation:

Picture it as a cosmic kitchen where metals blend like ingredients, each bringing unique strengths to the alloy recipe. This chapter unveils the art of alloy-making, where different metals join forces to become stronger, more durable, and sometimes even more beautiful. Understanding alloy formation is like discovering the secret recipes for creating metallic superheroes with enhanced properties. It's a fascinating journey into the world of metal mixtures, where elements team up to craft materials with extraordinary capabilities in the vast realm of chemistry.

13.  Preparation and Properties of K2Cr2O7 and KMnO4:

The "Preparation and Properties of K2Cr2O7 and KMnO4" is like learning the ABCs of making and using two important chemical compounds. Think of it as a simple cooking class where scientists show how to make these compounds step by step. Once made, these compounds turn into powerful players in chemical reactions. K2Cr2O7 and KMnO4 act like superheroes that can kickstart reactions in the lab.

14.  Lanthanoids:

These elements have unique traits, like being great conductors and having a knack for colorful chemistry. The chapter is your backstage pass to their world, unveiling their quirky personalities. Understanding lanthanoids is like getting to know the hip, lesser-known characters of the periodic table, each with its own charm and role in the cosmic chemistry drama. 

15.  Actinoids:

The "Actinoids" are  like discovering the mysterious side of the periodic table. Picture a secret club where elements known as actinoids gather. These elements have intriguing qualities, like radioactivity and a flair for unique chemistry. The chapter is your VIP pass, revealing their enigmatic features. Understanding actinoids is like entering a hidden world, getting to know the intriguing members of the periodic table who bring a touch of the extraordinary to the chemical stage. It's a backstage tour where these elements showcase their distinctive attributes, adding a captivating twist to the cosmic chemistry tale.

Important Questions of D and F Block Elements:

1. Total number of rare Earth elements is?

(a.) 8

(b.) 32

(c.) 14

(d.) 10

Ans. (C)

Lanthanides (total 14) are called rare earth elements. Hence, the total number of rare earth elements is 14.

2. Which of the following metal acts as a most efficient catalyst?

(a.) Alkali

(b.) Transition

(c.) Alkaline earth metals

(d.) Coloured metals

Ans. (B)

3. Most common oxidation states of Ce (cerium) are?

(a.) +2, +3

(b.) +2, +4

(c.) +3, +4

(d.) +3, +5

Ans. (C)

The most oxidation state of Ce (cerium) are +3, +4

4. A reduction in atomic size with increase in atomic number is a characteristic of element of?

(a.) d-block

(b.) f-block

(c.) Radioactive series

(d.) High atomic masses

Ans. (B) 

F-block elements show a regular decrease in atomic size due to lanthanide/actinide contractions.

Class-wise Syllabus for NEET-UG 

NEET Previous Year Question Paper

Here is the list of previous years’ question papers of NEET. Needless to say, practising the questions of the previous years’ question papers will help students understand the concepts better.

This was the complete discussion on the NEET important questions on D and F Block Elements. We have learnt about the chapter-wise weightage of the Chemistry syllabus in NEET. If you are a NEET aspirant, start your preparations with the important questions provided by Vedantu.

We wish you all the very best for your upcoming examinations.

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Conclusion

Delving into the NEET Important Questions pertaining to D and F Block Elements furnishes a strong foothold in comprehending these fundamental sections. These curated questions, meticulously designed, offer a profound understanding, essential for excelling in the NEET examination. Their comprehensive nature aids in grasping intricate concepts, enabling students to navigate the complexities of these elements with confidence. By engaging with these questions, candidates bolster their preparation, ensuring a solid grasp of the essential topics, paving the way for success in the competitive NEET assessment.