Which of the following expression is correct for the first order reactions (C0 refers to initial concentration and t1/2 refers to half-life time)?
Which of the following reacts with phenol to give salicylaldehyde after hydrolysis?
Dichloro methane
Trichloro methane
Methyl chloride
None of these
Which of the following is most soluble in water?
Normal butyl alcohol
Iso-butyl alcohol
Tertiary butyl alcoho
None of the above
C.
Tertiary butyl alcoho
Amongst isomeric alcohols, the solubility increases with branching. This is due to the reason that as the branching increases, the surface area ofthe non-polar hydrocarbon part decreases and the solubility increases. So, the sequence ofsolubility of alcohols are:
Tertiary alcohol > secondary alcohol > primary alcohol
Ethyl alcohol exhibits acidic character on reacting with
acetic acid
sodium metal
hydrogen iodide
acidic potassium dichromate
The reaction CH3CH2ONa + BrCH2CH3 CH3CH2OCH2CH3 is called
Frankland reaction
Wurtz reaction
Williamson's synthesis
Cannizaro's reaction
Diethyl ether on heating with conc. HI gives two moles of
ethyl iodide
ethanol
Iodoform
methyl iodide
Schiff's reagent is
p-rosaniline hydrochloride solution decolourised with sulphurous acid
magenta solution decolourised with Cl2
ammoniacal silver nitrate solution
alkaline KMnO4 solution