MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Propan-1-ol can be prepared from propene by alcohol [AIIMS 2003] |
| A. | \[{{H}_{2}}O/{{H}_{2}}S{{O}_{4}}\] |
| B. | \[Hg{{(OAc)}_{2}}/{{H}_{2}}O\]followed by \[NaB{{H}_{4}}\] |
| C. | \[{{B}_{2}}{{H}_{6}}\]followed by \[{{H}_{2}}{{O}_{2}}\] |
| D. | \[C{{H}_{3}}C{{O}_{2}}H/{{H}_{2}}S{{O}_{4}}\] |
| Answer» D. \[C{{H}_{3}}C{{O}_{2}}H/{{H}_{2}}S{{O}_{4}}\] | |
| 2. |
Oxiran is |
| A. | Ethylene oxide |
| B. | Diethyl ether |
| C. | Ethyl glycolate |
| D. | Glycolic ester |
| Answer» B. Diethyl ether | |
| 3. |
Which of the following statements is correct regarding case of dehydration in alcohols [CPMT 1980, 85; MP PMT 2001; BHU 2002] |
| A. | Primary > Secondary |
| B. | Secondary > Tertiary |
| C. | Tertiary > Primary |
| D. | None of these |
| Answer» D. None of these | |
| 4. |
When a mixture of ethanol and methanol is heated in the presence of concentrated \[{{H}_{2}}S{{O}_{4}}\] the resulting organic product or products is/are [Manipal MEE 1995] |
| A. | \[C{{H}_{3}}O{{C}_{2}}{{H}_{5}}\] |
| B. | \[C{{H}_{3}}OC{{H}_{3}}\] and \[{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}\] |
| C. | \[C{{H}_{3}}O{{C}_{2}}{{H}_{5}}\] and \[C{{H}_{3}}OC{{H}_{3}}\] |
| D. | \[C{{H}_{3}}O{{C}_{2}}{{H}_{5}},\] \[C{{H}_{3}}OC{{H}_{3}}\] and \[{{C}_{2}}{{H}_{5}}O{{C}_{2}}{{H}_{5}}\] |
| Answer» E. | |
| 5. |
Which of the following will be obtained by keeping ether in contact with air for a long time [RPMT 2003] |
| A. | \[{{C}_{2}}{{H}_{5}}-O-CH\ (C{{H}_{3}})-O-OH\] |
| B. | \[{{C}_{2}}{{H}_{5}}-OC{{H}_{2}}-OH\] |
| C. | \[{{C}_{2}}{{H}_{5}}-O-{{C}_{2}}{{H}_{5}}OH\] |
| D. | \[C{{H}_{3}}-O\ CH\ (C{{H}_{3}})-O-OH\] |
| Answer» B. \[{{C}_{2}}{{H}_{5}}-OC{{H}_{2}}-OH\] | |
| 6. |
Which of the following does not form phenol or phenoxide [AFMC 2000] |
| A. | \[{{C}_{6}}{{H}_{5}}Cl\] |
| B. | \[{{C}_{6}}{{H}_{5}}COOH\] |
| C. | \[{{C}_{6}}{{H}_{5}}{{N}_{2}}Cl\] |
| D. | \[{{C}_{6}}{{H}_{5}}S{{O}_{3}}Na\] |
| Answer» C. \[{{C}_{6}}{{H}_{5}}{{N}_{2}}Cl\] | |
| 7. |
The product ?A? in the following reaction is \[\begin{array}{*{35}{l}} {{H}_{2}}C\,\,C{{H}_{2}}\\ \begin{align} & \,\,\,\,\,\,\,\,\,\,\,\, \\ & \,\,\,\,\,\,\,\,\,\,\,\,\overset{\backslash /}{\mathop{O}}\, \\ \end{align}\\ \end{array}\xrightarrow{RMgI}A\] [MP PMT 2003] |
| A. | \[RCHOHR\] |
| B. | \[RCHOH\cdot C{{H}_{3}}\] |
| C. | \[R-C{{H}_{2}}-C{{H}_{2}}-OH\] |
| D. | \[\begin{array}{*{35}{l}} R\\ R\\ \end{array}>CHC{{H}_{2}}OH\] |
| Answer» D. \[\begin{array}{*{35}{l}} R\\ R\\ \end{array}>CHC{{H}_{2}}OH\] | |
| 8. |
Which will undergo a Friedel-Craft's alkylation reaction [Pb. PMT 1998] |
| A. | 1, 2 and 4 |
| B. | 1 and 3 |
| C. | 2 and 4 |
| D. | 1 and 2 |
| Answer» D. 1 and 2 | |