Classification of Hydrocarbons

Q. Total number of structural isomers (aldehyde and ketones) of $C_5{H}_{10}O$ are:

Q.

What is catenation?

Q. Find A in the given reaction ?
$C{H}_{3}COOH+NaOH\underset{CaO}{\overset{△}{\to }}A+N{a}_{2}C{O}_3$

1. $C{H}_4$
2. All of the above.
3. $C_2{H}_6$
4. $C{H}_{3}COONa$

Q. Which one of the following reactions is not an example of redox reaction

1. $C{l}_2+2H_{2}O+S{O}_2\to 4H^{+}+S{O}_4^{2-}+2C{l}^{-}$
2. $C{u}^{++}+Zn\to Z{n}^{++}+Cu$
3. $2H_2+O_2\to 2H_{2}O$
4. $HCl+H_{2}O\to H_3{O}^{+}+C{l}^{-}$

Q. $C{H}_3-C{H}_2-C{H}_2-Br\stackrel{Alc.KOH}{⟶}$ Final product is

1. Propanol
2. Propene
3. Cyclopropane
4. Propane-l, 2-diol

Q.

The structure of beryllium chloride in the solid-state and vapor phase, respectively, are:

1. dimeric and dimeric

2. dimeric and chain

3. chain and dimeric

4. chain and chain

Q.

Which of the following compound has chiral carbon atom?

1. CH₃CH₂CH₂ CH₂Br

2. (CH₃)₂CHCH₂CH₂Br

3. CH₃CH₂CH (Br) CH2CH₃

4. CH₃CH₂CH₂CH (Br) CH₃

Q. A gaseous compound is composed of $85.7\%$ by mass carbon and $14.3\%$ by mass hydrogen. Its density is $2.28\text{g/L}$ at $300\text{K}$ and $1\text{atm}$. Determine the molecular formula of the compound.

1. $C_2{H}_2$
2. $C_2{H}_4$
3. $C_4{H}_8$
4. $C_4{H}_{10}$

Q. Choose the reagent and reactant that would produce 2-methyl-2-butanol as the major product.

1. Only I
2. Both I and III
3. I, II and III
4. Only III

Q.

Preparation of inorganic graphite

Q. An alkane $C_6{H}_{14}\left(X\right)$ can be obtained by the reduction of five different alkyl halides $C_6{H}_{13}Cl$ (only structural isomers) with $Zn-dil.HCl.$ The IUPAC name of X satisfying above condition is

1. 2-methylpentane
2. 2, 3-dimethylbutane
3. Hexane
4. 2, 2-dimethyl butane

Q.

How Is Methane Prepared From Sodium Ethanoate?

Q. The following compound which can not be prepared by Wurtz reaction?

1. Methane
2. Ethane
3. Butane
4. Propane

Q.

Below are the two statements:

Statement I: Sodium Hydroxide can be used as an oxidizing agent.

Statement II: Basicity of Pyridine is due to lone pair on Nitrogen.

1. Statement I is true but statement II is false

2. Both statement I and statement II are false

3. Both statement I and statement II are true

4. Statement I is false but statement II is true

Q. In the cyclo- $S_8$ molecule of rhombic sulphur, all the S-S bond lengths and all the S-S-S bond angles are respectively (approximate values).

1. 204 pm and 107⁰
2. 102 pm and 120⁰
3. 102 pm and 60⁰.
4. 204 pm and 180⁰

Q. Which substance serves as reducing agent in the following reaction?
$14H^{+}+C{r}_2{O}_7^{2-}+3Ni\to 2C{r}^{3+}+7H_{2}O+3N{i}^{2+}$

1. $H_{2}O$
2. Ni
3. $H^{+}$
4. $C{r}_2{O}_7^{2-}$

Q. Which of the following alkyl halides can not be reduced using Zn, dil. HCl?

1. alkyl chloride
2. alkyl bromide
3. alkyl iodide
4. alkyl fluoride

Q.

Which of the following compounds has only a primary hydrogen atom?

1. Butane

2. Isobutane

3. Isopentane

4. Cyclohexane

Q. The decreasing order of reactivity of alkyl halides with zinc and dilute $HCl$ is :

1. $R-Cl>R-I>R-Br$
2. $R-Cl>R-Br>R-I$
3. $R-I>R-Br>R-Cl$
4. $R-Br>R-I>R-Cl$

Q. For the given reaction :
$\text{2-phenylacetic acid +NaOH}\stackrel{CaO,△}{⟶}\text{Product}$
The product is:

1. Benzoic acid
2. Toluene
3. Phenol
4. Benzene

Q. The total number of cyclic isomers for the hydrocarbon having the formula $C_4{H}_6$ is ___

Q.

What is the difference between alkyl halide and alkene

Q. A hydrocarbon X has molar mass 84, but contains no double or triple bonds. Also X has no methyl locant, so how many different IUPAC names can be asigned to X?

1. 4
2. 3
3. 2
4. 6

Q.

Equivalent mass of Na2CO3 when titrated with HCl using phenolphthalein indicator will be

Q.

A mixture of sodium bicarbonate and tartaric acid is called _____________ .

Q. How do you explain the presence of all the six carbon atoms in glucose in a straight chain?

Q. Compare the boiling points among the hydride of group 17 HF, HCL, HBR, HI

Q. 52.Treatment of ethylamine and methyl magnesium halide produces a gaseous substance X.X is. Ethane, Ammonia, Methane, Propane

Q.

A compound with empirical formula XY₂, has the vapour density equal to its empirical formula weight, its molecular formula is

Q.

Which five hydrocarbons are common?