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What is the reason for the stability of colloidal sols?
Concept: Properties of Colloidal Solutions
Define the following term:
Zeta potential
Concept: Properties of Colloidal Solutions
[NiCl4]2− is paramagnetic, while [Ni(CO)4] is diamagnetic, though both are tetrahedral. Why? (Atomic number of Ni = 28)
Concept: Bonding in Coordination Compounds >> Valence Bond Theory (VBT)
Write one similarity between Physisorption and Chemisorption
Concept: Types of Adsorption
Following compounds are given to you :
2-Bromopentane, 2-Bromo-2-methylbutane, 1-Bromopentane
1) Write the compound which is most reactive towards SN2 reaction.
2) Write the compound which is optically active.
3) Write the compound which is most reactive towards β-elimination reaction.
Concept: Some Important Terms Pertaining to Coordination Compounds
What are Heteroleptic complexes?
Concept: Some Important Terms Pertaining to Coordination Compounds
How do you convert:
2-bromobutane to but-2-ene
Concept: Hydrocarbons: Alkanes >> Reactions of Haloalkanes - Elimination Reactions
What is the role of coke in the extraction of iron from its oxides?
Concept: Occurrence of Metals
Auto-oxidation of chloroform in air and sunlight produces a poisonous gas known as ______.
Concept: Polyhalogen Compounds
Draw the structures of the following molecules: BrF3
Concept: Group 17 Elements - The Halogen Family >> Interhalogen Compounds
Write the equations involved in the following reactions : Williamson synthesis
Concept: Preparation of Ethers
Give simple chemical tests to distinguish between the following pairs of compounds :
Ethanol and phenol
Concept: Chemical Properties of Alcohols and Phenols
Arrange the following in the order of the property indicated against set :
H2O, H2S, H2Se, H2Te − increasing acidic character.
Concept: Group 16 Elements - The Oxygen Family
What happens when Phenol is oxidised with Na2Cr2O7/H+?
Concept: Methods of Preparation of Phenols
What happens when Anisole is treated with CH3Cl/anhydrous AlCl3?
Concept: Chemical Reaction of Ethers - Electrophilic Substitution
Why carboxylic acid does not give reactions of carbonyl group?
Concept: Acids >> Structure of the Carboxyl group
Write the chemical equations to illustrate the following name reactions : Rosenmund reduction
Concept: Concepts of Aldehydes, Ketones, and Carboxylic Acids >> Preparation of Aldehydes
How will you convert ethanal into the following compound?
But-2-enal
Concept: Concepts of Aldehydes, Ketones, and Carboxylic Acids >> Chemical Reactions of Aldehydes and Ketones - Reactions Due to α-hydrogen
How will you bring about the following conversion in not more than two steps?
Benzoic acid to Benzaldehyde
Concept: Acids >> Chemical Reactions of Carboxylic Acids - Reactions Involving –COOH Group
Give reasons Acetylation of aniline reduces its activation effect.
Concept: Concepts of Aldehydes, Ketones, and Carboxylic Acids >> Chemical Reactions of Aldehydes and Ketones - Reactions Due to α-hydrogen
