Nitrobenzene can be converted into azobenzene by reduction with
Zn/NaOH, CH3OH
Zn/NaOH
LiAlH4, ether
On treatment of propanone with dilute Ba(OH)2 the product formed
aldol
phorone
propionaldehyde
4-hydroxy-4-methyl-2-pentanone
Which metal aprons are worn by radiographer to protect him from radiation?
Mercury coated apron
Lead apron
Copper apron
Aluminimised apron
B.
Lead apron
A lead apron or leaded apron is a type of protective clothing that acts as a radiation shield. It is constructed of a thin rubber exterior and an interior of lead in the shape of a hospital apron. The purpose of the lead apron is to reduce exposure of a hospital patient to x-rays to vital organs that are potentially exposed to ionizing radiation during medical imaging that uses x-rays (radiography, fluoroscopy, computed tomography).
Formation of cyanohydrin from a ketone is an example of
electrophilic addition
nucleophilic addition
nucleophilic substitution
electrophilic substitution
Glycerol on treatment with oxalic acid at 110°C forms
formic acid
allyl alcohol
CO2 and CO
acrolein
The reaction, ROH + H2CN2 in the presence of HBF4, gives the following product
ROCH3
RCH2OH
ROHCN2N2
RCH2CH3
The fatty acid which shows reducing property is
acetic acid
ethanoic acid
oxalic acid
formic acid