IUPAC System of Nomenclature

Q.

What is the molecular formula for butane?

Q. The formula , M(V1+ V2) = M1V1 + M2V2 is applicable for reacting solutions or for non reacting solutions? What should be steps to find molarity of two reacting solutions when mixed .

Q. The IUPAC name of the alkane is

1. 2-Isopropyl-2, 6, 6-trimethylheptane
2. 5-Tert-butyl-2-isopropyl-2-methylpentane
3. 2, 3, 3, 7, 7-Pentamethyloctane
4. 2, 2, 6, 6, 7-Pentamethyloctane

Q. The IUPAC name of the given strucutre is

1. 3, 6-Bis-(2, 2-dimethylbutyl)nonane
2. Bis-(2, 2-dimethylbutyl)nonane
3. 3, 3, 4, 4-Tetramethyl-9-ethyl-5-propyldodecane
4. 5-Ethyl-3, 3, 10, 10-tetramethyl-8-propyldodecane

Q. The IUPAC name of the compound is:
$C{H}_3-\stackrel{\stackrel{C{H}_3}{|}}{CH}-\stackrel{\stackrel{C{H}_3}{|}}{CH}-CH(C{H}_{2}C{H}_{2}C{H}_{2}C{H}_3{)}_2$

1. 2, 4, 4-Dibutyl-3, 3-dimethylbutane
2. 5-(1, 2-Dimethylpropyl)nonane
3. 4-Butyl-2, 3-dimethyloctane
4. 1, 1-Dibutyl-2, 3-dimethylbutane

Q. The correct IUPAC name of $(C_2{H}_5{)}_{4}C$ is

1. Tetraethyl methane
2. 2-Ethylpentane
3. 3, 3-Diethylpentane
4. None of these

Q. 52. Consider the fillowing reaction sequence : S8(s) + 8O2(g)=8SO2(g) 2SO2(g)+O2(g)=2SO3(g) How many grams of SO3 are produced from 1 mole S8 ??

Q. 30. Consider the reaction sequence S8 + 8So2 gives 8So2. 2So2 + O2 gives 2So3. how many grams of So3 are produced from 1mole S8. (1) 1280. (2)960. (3)640. (4)320

Q. What functional group should be given priority while naming an aeromatic or aliphatic compound i different conditions?

Q. CH3−CH2−CH=CH2
The IUPAC name of the following compound is .

1. Butane
2. But-2-ene
3. 1-Butene

Q. The correct IUPAC name of 2-Ethylpent-3-yne is:

1. 3-Methylhex-4-yne
2. 4-Ethylpent-2-yne
3. 4-Methylhex-2-yne
4. None of these

Q. 27. What is topomer and attropisomer?

Q. Which of the following is/are organic compounds?

1. $C_2{H}_{5}OH$
2. $N{H}_3$
   
3. ${\mathrm{CH}}_3\mathrm{COOH}$
4. $\mathrm{HCl}$
5. $C_6{H}_{12}{O}_6$
6. $CC{l}_4$
7. ${\mathrm{HNO}}_3$
8. Lipids

Q. Which of the following represents the correct structure of compound with IUPAC name 3, 6-diisopropyl-2, 6-dimethylnonane?

1. 
2. 
3. 
4. 

Q.

$1^{\circ },2^{\circ },3^{\circ }and{4}^{\circ }$ carbon atoms are present in

1. 2, 3, 4 - Trimethylpentane

2. 2, 2, 3 - Trimethylpentane

3. Neither (a) nor (b)

4. both (a) and (b)

Q. The IUPAC name for is

1. (1-Methylpropyl)cyclobutane
2. 2-(n-Butyl)cyclobutane
3. 2-Cyclobutylbutane
4. 1-Cyclobutylbutane

Q.

what is the IUPAC name and symbol of the element having atomic number 107 and 111

Q. What is the correct IUPAC name of following compound?

1. 5-bromo-6-chloro-8-hydroxy-8-methylnon-4, 6-dien-2-ynedioic acid
2. 5-bromo-6-chloro-8-hydroxy-8-methylnona-4, 6-dien-2-ynedioic acid
3. 5-bromo-4-chloro-2-hydroxy-2-methylnona-4, 6-dien-2-ynedioic acid
4. 5-bromo-4-chloro-2-hydroxy-2-methylnon-4, 6-diene-2-ynedioic acid

Q. The IUPAC name of $C_2{H}_{5}NHCHO$ is:

1. N-aldoethanamine
2. N-formylethanamine
3. N-aldoaminoethane
4. N-ethylmethanamide

Q. Choose the correct IUPAC name of the following structure:

1. 3-hex-5-methyl-nonane
2. 3-propyl-2-methyl-nonane
3. 5-(1-ethyl-2-methylpropyl)-nonane
4. 3-isopropylnonane

Q. What is the correct IUPAC name of following compound?

1. 3, 7, 8-tribromo-2-chloro-5-(2'-chloro-3'-iodobutyl)-5-(3"-chloropropyl)nonane
2. 2, 3-dibromo-5-(2'-bromo-3'-chlorobutyl)-7-chloro-5-(3"-chloropropyl)-8-iodononane
3. 3-bromo-5-(2', 3'-dibromobutyl)-2-chloro-5-(2"-chloro-3"-iodobutyl)-5-(3"'-chloropropyl)nonane
4. 2, 3, 7-tribromo-8-chloro-5-(2'-chloro-3'-iodobutyl)-5-(3"-chloropropyl)nonane

Q.

Identify the correct statement among the following

1. 

2. 

3. The minimum number of carbon atoms in a branched alkane is three

4. 

Q. What is the molecular formula of nonane, octane and decane respectively?

1. $C_9{H}_{20},C_8{H}_{18},C_{10}{H}_{22}$
2. $C_{10}{H}_{20},C_8{H}_{18},C_9{H}_{22}$
3. $C_8{H}_{20},C_9{H}_{18},C_{10}{H}_{22}$
4. $C_9{H}_{18},C_{10}{H}_{18},C_8{H}_{22}$

Q. When vinyl and allyl groups are joined together in a single molecule, we get a/an:

1. Conjugated alkadiene
2. Cumulated alkadiene
3. Isolated alkadiene
4. Allene

Q. CH3−CH2−CH=CH2
The IUPAC name of the following compound is .

1. Butane
2. But-2-ene
3. 1-Butene

Q. The IUPAC name of the alkane is

1. 2-Isopropyl-2, 6, 6-trimethylheptane
2. 5-Tert-butyl-2-isopropyl-2-methylpentane
3. 2, 3, 3, 7, 7-Pentamethyloctane
4. 2, 2, 6, 6, 7-Pentamethyloctane

Q.
IUPAC name of the given compound is:

1. None of these
2. 2-aminoethanamide
3. 1-oxo-ethanediamine
4. Both (a) and (b)

Q. What is the significance of functional group in organic chemistry

Q. Which type of compounds cannot exhibit geometrical isomerism?
a) Singly Bonded
b) Doubly Bonded
c) Triply Bonded
d) Cyclic Compounds

Q. Which of the following statements is/are true?

1. The systematic names of alkanes are based on the number of carbon atoms in the longest continuous chain of carbon atoms

2. The trivial names of organic compounds are also known as common names

3. The systematic names of organic compounds are obtained from using the latest IUPAC system

4. All.