Phenyl isocyanides are prepared from which of the following reactions?

What is the product of the reaction: $CH_3NH_2 + CHCl_3 \xrightarrow{KOH}$?

$A$ primary amine,$RNH_2$ can be reacted with $CH_3-X$ to get a secondary amine,$RNHCH_3$,but the disadvantage is that $3^o$ amine and quaternary ammonium salts are also obtained as side products. Can you suggest a method where $RNH_2$ forms only $2^o$ amine?

Several factors (steric,electronic,orbital interactions,etc.) can affect the inversion barrier of an amine. In the given pairs,which data is correctly placed?

Which of the following chemicals are used to manufacture methyl isocyanate that caused the $Bhopal$ $Tragedy$?
$(i)$ $Methylamine$
$(ii)$ $Phosgene$
$(iii)$ $Phosphine$
$(iv)$ $Dimethylamine$

Give the major product of the following reaction: