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Arrange the compounds of the following set in order of reactivity towards SN2 displacement:
2-Bromo-2-methylbutane, 1-Bromopentane, 2-Bromopentane
Concept: Hydrocarbons: Alkanes >> Reactions of Haloalkanes - Nucleophilic Substitution Reactions
Out of PbS and PbCO3 (ores of lead), which one is concentrated by froth floatation process preferably?
Concept: Refining of Crude Metals
Given reasons: SN1 reactions are accompanied by racemization in optically active alkyl halides.
Concept: Hydrocarbons: Alkanes >> Reactions of Haloalkanes - Nucleophilic Substitution Reactions
Account for the following :
Iron on reaction with HCl forms FeCl2 nd not FeCl3.
Concept: Uses of Aluminium, Copper, Zinc and Iron
What happens when Silver is leached with NaCN in the presence of air?
Concept: Refining of Crude Metals
Out of (CH3)3 C-Br and (CH3)3 C-I, which one is more reactive towards SN1 and why?
Concept: Hydrocarbons: Alkanes >> Reactions of Haloarenes - Nucleophilic Substitution
Nitrogen does not form pentahalide.
Concept: Concept of Group 15 Elements
ICl is more reactive than I2.
Concept: P - Block Group 17 Elements >> Interhalogen Compounds
Write the IUPAC name of the given compound:
Concept: Alcohols, Phenols and Ethers >> Nomenclature
Write the structures of the following molecule:
H2SO3
Concept: P - Block Group 16 Elements >> Oxoacids of Sulphur
Give reasons for the following : H2Te is the strongest reducing agent amongst all the hydrides of Group 16 elements.
Concept: Concept of Group 16 Elements
Give reasons for the following : Phenol is more acidic than ethanol.
Concept: Physical and Chemical Properties of Alcohols and Phenols
Give reasons for the following : Boiling point of ethanol is higher in comparison to methoxymethane.
Concept: Physical and Chemical Properties of Alcohols and Phenols
Write the structures of the main products when acetone (CH3 − CO − CH3) reacts with the following reagents :
CH3MgBr and then H3O+
Concept: Methods of Preparation of Alcohols
Draw the structures of the following:
(1) HClO4
(2) H3PO3
Concept: P - Block Group 17 Elements >> Oxoacids of Halogens
Complete the following equation:
\[\ce{XeF2 + H2O ->}\]
Concept: P - Block Group 18 Elements >> Concept of Group 18 Elements
Give reasons Fluoride ion has higher hydration enthalpy than chloride ion.
Concept: Alcohols, Phenols and Ethers >> Nomenclature
Give reason for the following:
Red phosphorus is less reactive than white phosphorus.
Concept: p-Block elements of Group 15 Elements >> Phosphorus - Allotropic Forms
Write the structural difference between white phosphorus and red phosphorus.
Concept: Concept of Group 15 Elements
Arrange the following in order of the property indicated set.
HF, HCl, HBr, HI - decreasing bond enthalpy.
Concept: Concept of Group 16 Elements
