Nomenclature of Carboxylic Acid Derivatives

Q.

Write structures of the following compounds:

(i) 2-Chloro-3-methylpentane

(ii) 1-Chloro-4-ethylcyclohexane

(iii) 4-tert. Butyl-3-iodoheptane

(iv) 1, 4-Dibromobut-2-ene

(v) 1-Bromo-4-sec. butyl-2-methylbenzene

Q.

Write the structures of the following organic halogen compounds.

(i)2-Chloro-3-methylpentane

(ii)p-Bromochlorobenzene

(iii)1-Chloro-4-ethylcyclohexane

(iv)2-(2-Chlorophenyl)-1-iodooctane

(v) Perfluorobenzene

(vi)4-tert-Butyl-3-iodoheptane

(vii)1-Bromo-4-sec-butyl-2-methylbenzene

(viii)1, 4-Dibromobut-2-ene

Q.

The number of structural isomers for the alcohols with the formula C5H11OH is

Q.

How many enantiomer pairs are obtained by monochlorination of 2, 3-dimethylbutane

1. Nil

2. Four

3. Two

4. Three

5. One

Q.

Write the names of monomers of the following polymers:

Q. 3-methyl tolune is treated with br2 in presence of Febr3 what are the products formed? 1)2-bromo 3-methyl toluene and 2- bromo5-metyl toluene 2) 2- bromo 5- metyl toluene and2 -bromo3-methyl toluene 3)2- bromo5-metyl toluene and2- bromo5-methyl toluene 4)2-bromo 5-metyl toluene and3-bromo 5-metyl toluen

Q. What is product forme when cyclohexanone undergoes aldol condensation with formaldehyde

Q.

Oxidation reactions involve loss of dihydrogen so they are also known as:

Q.

What is meant by the following terms? Give an example of the reaction in each case.

(i) Cyanohydrin (ii) Acetal

(iii) Semicarbazone (iv) Aldol

(v) Hemiacetal (vi) Oxime

(vii) Ketal (vii) Imine

(ix) 2, 4-DNP-derivative (x) Schiff’s base

Q. How to covert benzyl bromide to tri-n-butylbenzylammonium bromide?

Q. Which of the following compound is/are correctly named?
(Do not consider stereomerism in naming)

1. Methyl-2, 6-dibromo-6-chloroformyl-4-oxohexa-2, 5-dieneoate
2. Methyl-2, 6-dibromo-7-bromocarbonyl-4-methylenehepta-2, 5-dienoate
3. Dimethyl-2, 5, 6-tribromo-3-chloro-4-iminohepta-2, 5-dienedioate
4. Trimethyl-1, 5-dibromo-4-chloro-3-
   iminopenta-1, 4-diene-1, 2, 5-
   tricarboxylate

Q. Number of possible amides with the formula $C_3{H}_{7}NO$ is/are:

Q. Cos2/7+cos4/7+cos6/7=

Q.

Write the names of monomers of the following polymers:

Q.

Which of the following sequence of reactions would
convert tertiary butyl alcohol into 3, 3-dimethylbutan-1-ol?

1. 1: $B{r}_2$ followed by Mg in Ether; 2: Oxirane 3: $H_3{O}^{+}$
2. 1: HBr followed by Mg in Ether; 2: Oxirane 3: $H_3{O}^{+}$
3. 1: HBr followed by Mg in Ether; 2: dioxane 3: $H_3{O}^{+}$
4. None of the above

Q.

WHAT ARE ENANTIOMERS? DRAW STRUCTURES OF POSSIBLE ENTIOMERS OF 2-methylbut-2-ene.

Q. Which of the following compound is/are correctly named?
(Do not consider stereomerism in naming)

1. Trimethyl-1, 5-dibromo-4-chloro-3-
   iminopenta-1, 4-diene-1, 2, 5-
   tricarboxylate
2. Methyl-2, 6-dibromo-7-bromocarbonyl-4-methylenehepta-2, 5-dienoate
3. Dimethyl-2, 5, 6-tribromo-3-chloro-4-iminohepta-2, 5-dienedioate
4. Methyl-2, 6-dibromo-6-chloroformyl-4-oxohexa-2, 5-dieneoate

Q.

In the following sequence of reactions ?

1. butanal.

2. Propanol

3. n-propylalcohol

4. n-butylalcohol

Q. $(RCO{)}_{2}NH$ is

1. Primary amine

2. Secondary amine

3. Secondary amide

4. Tertiary amide

Q. What is the product 'P' in the following reaction?

1. 
2. 
3. 
4. Both (b) and (c)

Q. Match the following

1. $N-\mathrm{Methylbutanamide}$
2. $\mathrm{Ethanoic}\mathrm{propanoic}\mathrm{anhydride}$
3. $\mathrm{Ethyl}\mathrm{propanoate}$
4. $\mathrm{Propanoyl}\mathrm{chloride}$

Q. Are 1-Chloro methyl-3-(2, 2-dimethyl propyl) benzene and 3-(2, 2-dimethyl propyl)-1-Chloro methyl benzene same?

Q. In the reaction given below, the major organic product formed is

1. 
2. 
3. 
4. 

Q.
Molar mass (g/mol) of the end product is:

1. 92
2. 94
3. 122
4. 130

Q. $C_{13}{H}_{10}O\stackrel{C{F}_{3}C{O}_{3}H}{\to }\left(A\right)\stackrel{H_3{O}^{+}}{\to }B+C$

With neutral $FeC{l}_3,C$ gives violet colour. B on decarboxylation and C on reduction with zinc dust, gives same compound. The correct statement is:

1. C gives dye test positive in weakly alkaline medium
2. C gives dye test positive in weakly acidic medium
3. C gives dye test positive in strongly alkaline medium
4. B can be formed by oxidation of toluene with chromyl chloride

Q. How many different dichloro alkanes (including stereoisomers) on heating with sodium in ether would give the same methylcyclohexane?

Q. can we convert cyclohexanol to cyclohexanone using pcc or KMnO4 / H+

Q. Which of the following compound is/are correctly named?
(Do not consider stereomerism in naming)

1. Methyl-2, 6-dibromo-6-chloroformyl-4-oxohexa-2, 5-dieneoate
2. Methyl-2, 6-dibromo-7-bromocarbonyl-4-methylenehepta-2, 5-dienoate
3. Dimethyl-2, 5, 6-tribromo-3-chloro-4-iminohepta-2, 5-dienedioate
4. Trimethyl-1, 5-dibromo-4-chloro-3-
   iminopenta-1, 4-diene-1, 2, 5-
   tricarboxylate

Q. $C{H}_3-C{H}_2-\stackrel{O}{\stackrel{||}{C}}-OH\stackrel{PC{l}_3}{\to }\underset{\Delta }{\overset{N{H}_3}{\to }}\stackrel{OB{r}^{\ominus }}{\to }$ The product is :

1. $C{H}_{3}C{H}_{2}C{H}_2-N{H}_2$
2. $C{H}_{3}C{H}_2-N{H}_2$
3. $C{H}_3-\underset{Br}{\underset{|}{CH}}-COOH$
4. $C{H}_3-\stackrel{O}{\stackrel{||}{C}}-NHBr$

Q. cos2/7+cos4/7+cos67= ?