JEE Advanced 2018 Chemistry Quiz

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App

Questions and Answers

Which hybrid orbital type is associated with the complex [FeF6]4−?

  • dsp2 (correct)
  • d2sp3
  • sp3
  • sp3d2

The coordination compound [Cr(NH3)6]3+ exhibits sp3 hybridization.

False (B)

What type of hybridization do you expect in Ni(CO)4?

sp3d2

The hybridization for the complex [Ti(H2O)3Cl3] is _______.

<p>dsp2</p> Signup and view all the answers

Match the following compounds with their hybridizations:

<p>[FeCl4]2− = sp3 [Ni(CN)4]2− = dsp2 [Cr(NH3)6]3+ = d2sp3 Ni(CO)4 = sp3d2</p> Signup and view all the answers

Which statement about the complex [Co(en)(NH3)3(H2O)]3+ is correct?

<p>It has two geometrical isomers. (A), It is paramagnetic. (B), It absorbs light at longer wavelength as compared to [Co(en)(NH3)4]3+. (C)</p> Signup and view all the answers

Mn2+ shows a characteristic blue colour in the flame test.

<p>False (B)</p> Signup and view all the answers

What are the products of aniline reacting with mixed acid at 288 K?

<p>P, Q, R</p> Signup and view all the answers

Cu2+ shows the formation of precipitate by passing ______ in acidic medium.

<p>H2S</p> Signup and view all the answers

Match the following with their characteristics regarding flame tests:

<p>Mn2+ = Characteristic green colour Cu2+ = Characteristic blue colour Co2+ = Characteristic pink colour Na+ = Characteristic yellow colour</p> Signup and view all the answers

Which of the following ions is only capable of forming a precipitate when H2S is passed in faintly basic medium?

<p>Mn2+ (D)</p> Signup and view all the answers

Cu/Cu2+ has a lower reduction potential than Mn/Mn2+.

<p>False (B)</p> Signup and view all the answers

What is the expected product percentages identified in the reaction of aniline with mixed acid?

<p>P: 51%, Q: 47%, R: 2%</p> Signup and view all the answers

If bidentate ‘en’ is replaced by two _______ ligands, the complex will have three geometrical isomers.

<p>cyanide</p> Signup and view all the answers

Which order of migratory aptitude is correct?

<p>aryl &gt; alkyl &gt; hydrogen (D)</p> Signup and view all the answers

The reaction products in LIST-I can only be matched with one option from LIST-II.

<p>False (B)</p> Signup and view all the answers

What is the significance of the degree of dissociation (α) in the context of weak acids and bases?

<p>It indicates the extent to which a weak acid or base ionizes in solution.</p> Signup and view all the answers

In the context of aromatic substitution reactions, migratory aptitude is typically classified in the order of __________.

<p>aryl &gt; alkyl &gt; hydrogen</p> Signup and view all the answers

Match each topic to its relevant description:

<p>Kinetics Of Chemical Reactions = Study of reaction rates and factors affecting them Carbohydrate Structures = Classification of sugars based on their functionality Coordination Chemistry = Study of metal complexes and ligands Flame Tests In Inorganic Chemistry = Identification of metal ions through flame color</p> Signup and view all the answers

Flashcards are hidden until you start studying

Study Notes

Reaction Migration Aptitude

  • Migratory aptitude order: aryl > alkyl > hydrogen
  • Specific options given for matching reactions to products in various questions, highlighting different product combinations.

Reaction and Product Matching

  • JEE (Advanced) assesses reactions through a matching format, requiring correct identification of major products for specified reactions.
  • Product pairs under different scenarios listed, demonstrating the variability in reaction outcomes.

Dilution and Acid-Base Equilibria

  • The impact of dilution on hydrogen ion concentration ([H+]) is explored.
  • Weak acid and weak base dissociation degree (α) play a crucial role in understanding concentration effects during dilution.

Hybrid Orbital Matching

  • Matching hybrid orbitals (e.g., dsp2, sp3, sp3d2, d2sp3) to their corresponding coordination complexes.
  • Different complexes such as [FeF6]4− and [Cr(NH3)6]3+ showcase various coordination geometries and hybridization.

Isomerism in Complexes

  • Geometrical isomers: the complex [Co(en)(NH3)3(H2O)]3+ has two geometrical isomers.
  • Replacement of bidentate 'en' ligand with cyanide can increase the geometrical isomers to three.
  • Complex demonstrates paramagnetism and different light absorption properties compared to other complexes.

Distinguishing Metal Ions

  • Mn2+ shows characteristic green color in flame tests.
  • Cu2+ forms precipitate with H2S in acidic medium, differing from Mn2+ behavior.
  • Mn2+ can also produce precipitate when H2S is passed in faintly basic medium, indicating differing reactivity.

Reaction Products of Aniline

  • Aniline's reaction with mixed acids yields three distinct products: P (51%), Q (47%), and R (2%) at specific conditions (288 K).

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Use Quizgecko on...
Browser
Browser