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)?
Carbon-halogen bond is strongest among the following
CH3Cl
CH3Br
CH3F
CH3I
C.
CH3F
Bond length is inversely proportional to bond energy. Due to smaller size of fluorine bond length of C-F bond is minimum, so bond energy of C-F bond is maximum.
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
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