Identify the correct order of organic compounds in the following chemical reaction: ? + Mg → ? → ? → ?
(A) CH 3 MgBr
(B) CH 3 B
(B) CH 3 B
(D) CH 4
Choose the correct answer from the options given below :

The amine which will not undergo benzoylation in alkaline medium is

What is the value of van't Hoff factor for complete dissociation of K2SO4 ?

Read the passage given below and answer the question.
Phenols and Alcohol have the same function group (-OH) but phenols are stronger acids than alcohol due the resonance stabilization of phenoxide ion than alkoxide ion (-RO\(^{-}\)). Electron withdrawing groups tend to increase the acidic strength while electron releasing groups tend to decrease it.
Which of the following reagent is used to distinguish between phenol and benzoic acid ?

Aspartame is most successful artificial sweetener but is only limited to cold food and cold drinks because:

\(t_{99\%}\) with respect to \(t_{90\%}\) for a first order reaction is :

The product of the following chemical reaction is
Glucose \(\xrightarrow{ Br _2 \text { water }}\)

crylAb encodes a protein that controls the growth of

The refractive index of air with respect to glass 2/3. The refractive index of diamond with respect to air is 2.4. What will be the refractive index of glass with respect to diamond?

Which will form the most stable complex ?

If \(95 \%\) confidence interval for the population mean was reported to be 140 to 150 and \(\sigma=25\), then the size of the sample used in this study is:
[Given: \(Z_{0.025}=1.96\) ]

The angle between the line \(\vec{r}=(\hat{i}+2 \hat{j}-\hat{k})+\lambda(\hat{i}-\hat{j}+\hat{k})\) and the plane \(\vec{r} \cdot(2 \hat{i}-\hat{j}+\hat{k})=4\) is :

Read the passage carefully and answer the Questions
Amines are classified as primary \(\left(1^{\circ}\right)\), secondary \(\left(2^{\circ}\right)\) and tertiary \(\left(3^{\circ}\right)\) depending upon the number of hydrogen atoms replaced by alkyl or aryl groups in ammonia molecules. Aliphatic amines are a stronger bases due to \(+I\) effect of an alkyl groups.
Intermolecular hydrogen bonding in primary and secondary amines affects the boiling points of amines. The intermolecular association is more in primary amines than in secondary amines as there are more number of hydrogen atoms available for hydrogen bond formation. Nitro compounds are reduced to amines by passing hydrogen gas in the presence of finely divided nickel, palladium or platinum and also by reduction with metals in an acidic medium. Gabriel synthesis is used for the preparation of primary amines. Primary amines react with nitrous acid to give unstable diazonium-salts which can be used to synthesize a variety of compounds.
Identify the amine possessing least basic strength