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Explain pseudo-first-order reaction with an example.
Concept: Pseudo First Order Reaction
Why first ionization enthalpy of chromium is lower than that of zinc?
Concept: General Trend in Properties
Define unit cell.
Concept: Classification of Crystalline Solids
Why do zirconium and Hafnium exhibit similar properties?
Concept: Electronic Configurations >> The f-Block Elements (Inner-transition Elements)
Transition metals show high melting points why?
Concept: General Trend in Properties
Derive integrated rate law for a zero-order reaction \[\ce{A -> Product}\].
Concept: Zero Order Reactions
Write Arrhenius equation and explains the terms involved.
Concept: Arrhenius Equation – the Effect of Temperature on Reaction Rate
Explain the common ion effect with an example.
Concept: Common Ion Effect
How will you prepare acetic anhydride from acetic acid?
Concept: Chemical Properties of Aldehydes and Ketones
Account for the following:
Aniline does not undergo Friedel-Crafts reaction.
Concept: Nitro Compounds
Account for the following.
Diazonium salts of aromatic amines are more stable than those of aliphatic amines.
Concept: Introduction of Diazonium Salts
Account for the following.
Ethylamine is soluble in water whereas aniline is not.
Concept: Classification of Amines
Arrange the following:
In increasing order of solubility in water:
C6H5NH2, (C2H5)2NH, C2H5NH2
Concept: Classification of Amines
What are reducing and non-reducing sugars?
Concept: Biomolecules in the Cell > Carbohydrates
Write the structure of all possible dipeptides which can be obtained from glycine and alanine.
Concept: Biomolecules in the Cell > Proteins
How do antiseptics differ from disinfectants?
Concept: Drug
