MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following has the lowest boiling point? |
| A. | Bromomethane |
| B. | Bromoform |
| C. | Chloromethane |
| D. | Dibromomethane |
| Answer» D. Dibromomethane | |
| 2. |
Haloalkanes are more soluble in water than in alcohols. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Calculate the dipole moment of m-Dichlorobenzene if the dipole moments of C-Cl bonds are 1.72D. |
| A. | 0 |
| B. | 1.72D |
| C. | 2.54D |
| D. | 2.98D |
| Answer» C. 2.54D | |
| 4. |
What is the value of diploe moment of p-Dichlorobenzene? |
| A. | 0 |
| B. | 1 |
| C. | >1 |
| D. | <1 |
| Answer» B. 1 | |
| 5. |
The dipole moment of chloromethane is higher than that of fluoromethane. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
What is the correct order of boiling of isomeric dichlorobenzenes? |
| A. | ortho>meta>para |
| B. | para>meta>ortho |
| C. | para>ortho>meta |
| D. | meta>ortho>para |
| Answer» D. meta>ortho>para | |
| 7. |
If the compound shown has a boiling point of 346K, predict the boiling point of n-Butyl bromide? |
| A. | 300K |
| B. | 325K |
| C. | 350K |
| D. | 375K |
| Answer» E. | |
| 8. |
The boiling points of isomeric alkyl halides _______ with increase in branching. |
| A. | increase |
| B. | decrease |
| C. | remains same |
| D. | cannot be determined |
| Answer» C. remains same | |
| 9. |
If chloromethane has a boiling point of 250K, what will be the probable boiling point of methane? |
| A. | 110K |
| B. | 250K |
| C. | 275K |
| D. | 315K |
| Answer» B. 250K | |
| 10. |
What is the correct relation between boiling points of the following alkyl iodides, where R=methyl, R’=ethyl and R”=propyl? |
| A. | RI > R’I > R”I |
| B. | R”I > R’I > RI |
| C. | RI = R’I = R”I |
| D. | R”I = R’I > RI |
| Answer» C. RI = R’I = R”I | |
| 11. |
For a particular alkyl group R, what is the correct order of boiling points of the following compounds? |
| A. | RBr > RCl > RF |
| B. | RF > RCl > RBr |
| C. | RCl > RBr > RF |
| D. | RF > RBr > RCl |
| Answer» B. RF > RCl > RBr | |
| 12. |
Which of the following haloalkanes exist as liquids at room temperature? |
| A. | Methyl chloride |
| B. | Methyl bromide |
| C. | Ethyl chloride |
| D. | Propyl bromide |
| Answer» E. | |