Mustard Oil Test

Q.

Primary amine on heating with $C{S}_2$followed by excess of mercuric chloride gives Isothiocyanate. The reaction is called

1. Hofmann mustard oil reaction

2. Perkin reaction

3. Diels Alder reaction.

4. Fries reaction

Q. Nitroso amines$(R_{2}N-N=O)$ are soluble in water. On heating them with concentrated$H_{2}S{O}_4$ they give secondary amines. The reaction is called

1. Perkin's reaction
2. Fittig's reaction
3. Sandmeyer's reaction
4. Liebermann's nitroso reaction

Q. For the reaction given below:
$CoC{l}_3.xN{H}_3+AgN{O}_3\left(aq\right)\to$
If two equivalents of $AgCl$ precipitate out, then the value of x will be____.

Q.

Primary amine on heating with $C{S}_2$followed by excess of mercuric chloride gives Isothiocyanate. The reaction is called

1. Hofmann mustard oil reaction

2. Perkin reaction

3. Fries reaction

4. Diels Alder reaction.

Q. In which of the following reactions the final product will give a black precipitate of HgS when treated with $C{S}_2$ followed by $HgC{l}_2$?

1. 
2. 
3. 
4. 

Q. Grignard reaction with methyl amine

Q. Insoluble nitrosoamines $(R_{2}N-N=O)$ on heating with conc. $H_{2}S{O}_4$ produces secondary amines. This reaction is called :

1. Liebermann’s nitroso reaction
2. Etard reaction
3. Corey House reaction
4. Hoffmann mustard oil reaction

Q. Methyl isocyanide on reduction using $LiAl{H}_4$ gives:

1. Methyl amine
2. Ethyl amine
3. Di methyl amine
4. Tri methyl amine

Q. Acetamide when treated with $B{r}_2$ and caustic soda, the product obtained is:

1. acetic acid
2. bromacetic acid
3. ethylamine
4. methylamine

Q. The product formed by the reaction of primary amine and aldehyde is -

1. Acid
2. Nitrite
3. Imine
4. Nitro alkane

Q. Reaction:
$Primaryamine+CHC{l}_3+KOH\to product$. Here product will be

1. Cyanide
2. Isocyanide
3. Amine
4. Alcohol

Q. In which of the following reactions the final product will give a black precipitate of HgS when treated with $C{S}_2$ followed by $HgC{l}_2$?

1. 
2. 
3. 
4. 

Q. Which of the following do not give acetamide on reaction with $N{H}_3$ (No heating)

1. $C{H}_{3}COCl$
2. $C{H}_{3}COOC{H}_3$
3. $(C{H}_{3}CO{)}_{2}O$
4. $C{H}_{3}COOH$

Q. Acetaldoxime on reduction with $Na/C_2{H}_{5}OH$ gives:

1. 2-propanol
2. ethyl amine
3. acetaldehyde
4. ethanol

Q. Secondary amines on oxidation with Caro's acid gives :

1. dialkylhydroxylamine
2. tetra-alkylhydrazine
3. ketones
4. amine oxide

Q. Ethyl amine on acetylation gives

1. Acetamide
2. N-ethyl acetamide
3. Methyl acetamide
4. None

Q. In which of the following reactions the final product will give a black precipitate of HgS when treated with $C{S}_2$ followed by $HgC{l}_2$?

1. 
2. 
3. 
4. 

Q. Assertion :When acetamide reacts with $NaOH$ and $B{r}_2$, methyl amine is formed. Reason: The reaction occurs through intermediate formation of isocyanate.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
3. Assertion is correct but Reason is incorrect.
4. Both Assertion and Reason are incorrect.

Q. A carbonyl compound gives pink colour with Schiff's reagent and a yellow precipitates when boiled with iodine and caustic alkali. It also gives a red precipitate with Fehling's solution. It is likely to be :-

1. Formaldehyde
2. Acetaldehyde
3. Propionaldehyde
4. Crotonaldehyde

Q. Primary amines on heating with_________and_________ form alkyl isocyanides.

Q. Carbon and hydrogen are detected by heating the organic compound with ________.

1. magnesium oxide
2. cupric oxide
3. zinc oxide
4. sulphur dioxide