Straight Chain Hydrocarbons

Q.

1. What are saturated and unsaturated hydrocarbons? How will you identify a hydrocarbon from its formula?

Q. The percentage of C, H and N in an organic compound are 40%, 13.3% and 46.7% respectively then emprirical formula is :

1. $C_3{H}_{13}{N}_3$
2. $C{H}_{2}N$
3. $C{H}_{4}N$
4. $C{H}_{6}N$

Q.
The number of chiral carbons present in the molecule given is/are:

Q. What is a hydrocarbon that contains only single bonds called ?

1. Unsaturated
2. Saturated
3. Fully bonded
4. None of the above

Q.

A straight chain hydrocarbon has the molecular formula C8H10. The hybridisation for the carbon atoms from one end of the chain to the other are respectively $s{p}^3,s{p}^2,s{p}^2,s{p}^3,s{p}^2,s{p}^2,sp$ and $sp$. The structural formula of the hydrocarbon would be

1. 

2. 

3. 

4. 

Q. IUPAC name of $\left(C{H}_3{)}_{2}CHCH\right(C{H}_3{)}_2$ is :

1. 1, 2-di-isopropylethane
2. 2-Propylpropane
3. 2, 3-dimethylbutane
4. 2, 3, 3-trimethylbutane

Q.

Write the molecular formula of lower and higher homologues of ${\mathrm{C}}_4{\mathrm{H}}_{10}$.

Q.

Write the molecular formula of the 2nd and 3rd member of the homologous series whose first member is methane.

Q.

Give the empirical formula of ${\mathrm{C}}_6{\mathrm{H}}_6$, ${\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6$, ${\mathrm{C}}_2{\mathrm{H}}_2$, ${\mathrm{CH}}_3{\mathrm{COOH}}_{}$.

Q.

Aliphatic hydrocarbons are classified as ___.

Q.

Which of the following is a metamer of $C{H}_{3}C{H}_2-S-C{H}_{2}C{H}_3$?

1. CH₃-S-CH₂CH₂CH₃

2. CH₃CH₂-O-CH₂CH₃

3. CH₃-O-CH₂CH₂CH₃

4. None of these

Q. The molecular formula for Heptane is :

1. $C_4{H}_{10}$
2. $C_8{H}_{18}$
3. $C_{10}{H}_{22}$
4. $C_7{H}_{16}$

Q.

Select the formulae of alkanes, alkenes, and alkynes from the following list:

${\mathrm{CH}}_4,{\mathrm{C}}_2{\mathrm{H}}_4,{\mathrm{C}}_2{\mathrm{H}}_6,{\mathrm{C}}_2{\mathrm{H}}_2,{\mathrm{C}}_3{\mathrm{H}}_6,{\mathrm{C}}_3{\mathrm{H}}_8,{\mathrm{C}}_3{\mathrm{H}}_4,{\mathrm{C}}_4{\mathrm{H}}_{10},{\mathrm{C}}_4{\mathrm{H}}_8,{\mathrm{C}}_4{\mathrm{H}}_6$

Q.

Name a compound of each type

Cyclic compound with a triple bond.

Q.

Write the formula of two homologous of ethane

Q.

What are alkenes?

Q. Which one of the following is not an unsaturated compound?

1. 
2. 
3. 
4. 

Q. (a) Propane and ethane are . (Homologous, isomers)​

Q.

1 mole of a hydrocarbon ‘X’ undergoes complete saturation with 1 mole of hydrogen in presence of a heated catalyst. What would be the formula of ‘X’?

1. ${\mathrm{C}}_2{\mathrm{H}}_6$

2. ${\mathrm{C}}_2{\mathrm{H}}_2$

3. ${\mathrm{C}}_5{\mathrm{H}}_{10}$

4. ${\mathrm{C}}_7{\mathrm{H}}_{16}$

Q. Which one of the following is not an unsaturated compound?

1. 
2. 
3. 
4. 

Q.

Write the molecular formula of alcohol which is drived from pentane.

Q.

Name the compound ${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_2-{\mathrm{CH}}_3$. Is it saturated or unsaturated hydrocarbon?

Q. terminal alkyne can be distinguished from the non-terminal alkyne and alkenes by using what?

Q.

Which category of compound is formed when one hydrogen atom of an alkane molecule is replaced by a hydroxyl group.

Q. Number of functional isomer(s) of CH₃COOH is/are?

1. 4
2. 3
3. 4
4. 2

Q.

Which of the following is/are true for Metamers?

1. Same molecular formula

2. Different functional group

3. Different number of carbon atoms on either side of the functional group

4. None of these

Q. 76. How many enolizable H are there in 2-methyl cyclohex-2-en-1-one?

Q.

Which one of alkane, alkene, and alkyne will not decolorize the bromine solution.

Q. Given below are two statement:

Statement I: o-Nitrophenol is steam volatile due to intramolecular hydrogen bonding.
Statement II: o-Nitrophenol has high melting point due to hydrogen bonding.

1. Both Statement I and Statement II are false
2. Statement I is false but Statement II is true
3. Both Statement I and Statement II are true
4. Statement I is true but Statement II is false

Q.

Which of the compounds ${\mathrm{C}}_2{\mathrm{H}}_6{\mathrm{O}}_2,{\mathrm{C}}_2{\mathrm{H}}_6\mathrm{O},{\mathrm{C}}_2{\mathrm{H}}_6,{\mathrm{CH}}_4\mathrm{O}$ could belong to the same homologous series.