51.

$$\begin{gathered} {\mathrm{RCON}}_3\stackrel{\mathrm{heat}}{\to }\mathrm{RNCO}\stackrel{{\mathrm{H}}_2\mathrm{O}}{\to }{\mathrm{RNH}}_2 \\ \mathrm{This} \mathrm{reaction} \mathrm{is} \mathrm{known} \mathrm{as}: \end{gathered}$$

• Schmidt reaction

• Wurtz reaction

• Curtius reaction

• Gabriel phthalimide reaction

Indicate correct synthesis of carboxylic acid from organometallic compound :

• 

• 

• 

• All of the above

Consider the following compounds:

Correct order of the basic nature of the above compounds:

• $\mathrm{I}<\mathrm{II}<\mathrm{III}<\mathrm{IV}$

• $\mathrm{IV}<\mathrm{II}<\mathrm{III}<\mathrm{I}$

• $\mathrm{I}<\mathrm{III}<\mathrm{IV}<\mathrm{II}$

• $\mathrm{II}<\mathrm{IV}<\mathrm{III}<\mathrm{I}$

When addition polymerisation of ethene takes place in a hydrocarbon solvent in the presence of ziegler-Natta catalyst, it forms:

• LDP

• HDP

• Polyacrylnitrile

• Teflon

Amyl meta cresol (5-methyl-2-phentyl phenol) is an:

• antiseptic

• antibiotic

• antimicrobial

• antacid

In the following reduction, reducing agent used is:

• DIBAH

• LiAlH₄

• NaAlH₄

• H₂/PdBaSo₄

The correct order of reactivity of phenyl Magnesium bromide with the following compound is:

• (II)> (III)> (I)

• (I)> (III)> (II)

• (II)> (I)> (III)

• (I)> (II)> (III)

Predict the product Bin the given reaction:

Under basic condition which one suffers elimination the most?

• (CH₃)₃CCI

• (CH₃)₂CHCH₂CI

• CH₃CH₂CHCICH₃

• CH₃CH₂CH₂CH₂CI

The correct order of basicity of:

• A> B > C > D

• D > C>A> B

• B > D > C > A

• D>A> B > C