Identify product $D$ in the following reaction sequence:
$CH_3-C(CH_3)_2-CH_2-CH_2-OH$ $\xrightarrow[H_2O, \text{heat}]{K_2Cr_2O_7, H_2SO_4} A$ $\xrightarrow{SOCl_2} B$ $\xrightarrow{2(CH_3)_2NH} C$ $\xrightarrow[2. H_2O]{1. LiAlH_4, \text{diethyl ether}} D$

Which of the following does not react with $HNO_2$?

Which of the following would produce an alcohol on treatment with $NaNO_2$ and $HCl$ in the presence of water?

$RCONH_2$ is converted into $RNH_2$ by means of Hofmann bromamide degradation. In this reaction,$RCONHBr$ is formed from which this reaction has derived its name. Electron donating group at phenyl activates the reaction. Hofmann degradation reaction is an intramolecular reaction.
$1.$ How can the conversion of $(i)$ to $(ii)$ be brought about?
$(A)$ $KBr$
$(B)$ $KBr + CH_3ONa$
$(C)$ $KBr + KOH$
$(D)$ $Br_2 + KOH$
$2.$ Which is the rate determining step in Hofmann bromamide degradation?
$(A)$ Formation of $(i)$
$(B)$ Formation of $(ii)$
$(C)$ Formation of $(iii)$
$(D)$ Formation of $(iv)$
$3.$ What are the constituent amines formed when the mixture of $(i)$ and $(ii)$ undergoes Hofmann bromamide degradation?
Give the answer for question $1$,$2$,and $3$.

By the presence of a halogen atom in the ring,the basic properties of aniline are:

Which of the following compounds is an example of a secondary amine?