Isomerism

Q.

How many isomers are possible in${\mathrm{C}}_4{\mathrm{H}}_8$?

1. $3$

2. $5$

3. $7$

4. $9$

Q.

Which among the following does not undergo Cannizzaro reaction?

1. trimethylacetaldehye

2. acetaldehyde

3. benzaldehyde

4. formaldehyde

Q.

Indicate the types of isomerism exhibited by the following complexes and

draw the structures for these isomers:

1. K[Cr(H₂O)₂(C₂O₄)₂

2. [Co(en)₃]Cl₃

3. [Co(NH₃)₅(NO₂)](NO₃)₂

4. [Pt(NH₃)(H₂O)Cl₂]

Q.

For a first order reaction how much half lives are nearly required for 90 completion of reaction.

Q.

How many geometrical isomers are possible in the following coordination entities?

(i) [Cr(C₂O₄)₃]³⁻ (ii) [Co(NH₃)₃Cl₃]

Q. $C_7{H}_{9}N$ has how many isomeric forms that contain a benzene ring?

1. $4$
2. $5$
3. $6$
4. $7$

Q.

What is $\mathrm{E}-\mathrm{Z}$ isomerism?

Q. A first order reaction is 20% complete in 10 minutes. Calculate the time taken for the reaction to go to 80% completion.

1. 72.18 min
2. 10.00 min
3. 36.28 min
4. 16.09 min

Q.

What is the difference between $\mathrm{Cl}$, ${\mathrm{Cl}}_2$, ${\mathrm{Cl}}_3$?

Q. What is popoff's rule?

Q.

Draw the structures of all isomeric alcohols of molecular formula $C_5{H}_{12}O$ and give their IUPAC names.

Classify the isomers of alcohols in question 3. (i) as primary secondary and tertiary alcohols.

Q. In a first order reaction, if the time taken for completion of $50$ percent of the reaction is $t$ seconds, then the time required for completion of $99.9$ percent of the reaction is

1. $2t$
2. $10t$
3. $4t$
4. $3t$

Q. A zero order reaction is $50\text{\%}$ complete in $20\text{min.}$ How much time will it take to complete $90\text{\%}$?

1. $36\text{min}$
2. $46\text{min}$
3. $26\text{min}$
4. $30\text{min}$

Q. The compound having molecular formula $C_4{H}_{10}O$ can show :

1. Functional isomerism
2. Positional isomerism
3. Metamerism
4. All

Q. Pentane, isopentane and neopentane are a type of:

1. Geometrical isomerism
2. Optical isomerism
3. Positional isomerism
4. Chain isomerism

Q.

Give examples of Surfactants.

Q.

What physical properties are different for the Isomers?

Q. On mixing certain alkane with chlorine and irradiating it with ultraviolet light, it forms only one monochloro alkane. The alkane could be

1. pentane
2. isopentane
3. neopentane
4. propane

Q. Which of the following compounds is asymmetric?

1. 
2. 
3. 
4. 

Q.

Write the total number of isomers in ${\mathrm{C}}_6{\mathrm{H}}_3{\mathrm{Cl}}_3$.

Q. Which of the following species is not aromatic?

1. 
2. 
3. 
4. 

Q. How many benzenoid isomers does $C_7{H}_{7}Cl$ have?

1. 4
2. 3
3. 5
4. 6

Q. what is difference between isobars, isotopes and isotonic

Q. In which of the following is functional group isomerism is not possible?

1. alcohols
2. Aldehydes
3. Alkyl halides
4. Cyanides

Q.

Cycloalkanes Are Isomeric With?

Q. Among the following, the number of anti-aromatic compound(s) is/are:

Q. A compound of molecular formula $C_6{H}_{12}{O}_3$ can not have:

Q.

The molecular formula of benzene is__________.

Q. Choose the correct statement(s) for the following compounds :

1. The degree of unsaturation for (a) is 9
2. The degree of unsaturation for (a) is 10
3. The degree of unsaturation for (b) is 8
4. The degree of unsaturation for (b) is 10

Q. In a first order reaction, $75\%$ of the reactants disappeared in $1.386hr$. The value of the rate constant is :

1. $0.693h{r}^{-1}$

2. $1h{r}^{-1}$

3. $1.386h{r}^{-1}$

4. $2.772h{r}^{-1}$