.gif)
Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
MDCAT Chemistry Chapter 15 Alkyl Halides Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | What forces operate between ethyl group of ethyl alcohol and oxygen of water | H-bonding attractive forces repulsive forces dipole forces |
| 2 | Which will not react with phenol | NaOH Br2 KMn04/OH- Na |
| 3 | Alcohol is less acidie than phenol due to | higher ka value Instability of alkoxide ion stability of carbocation Stability of phenol |
| 4 | Formation of Picric acid from phenol needs heating, one possible reason for it is |
acidity of phenol e- donating nature of-OH acidity of picric acid e- with drawing effect of- NO2 |
| 5 | An electron with drawing group attached to e-position in phenol | makes it basic Stabilises the phenoxide ion decreases its basicity allows it to precipitate in aqueous solution |
| 6 | What is true about an alcohol and phenol | Both are more acidic than water Both react with NaOH Both produce CO2 with Na2CO3 Both, produce H2 with Na |
| 7 | Which reactant does hnof liberate water on reaction with alcohol | NH3 K2Cr2O7/15H2O HCI PCI3 |
| 8 | The compound that reacts the slowest in Lucas test | 1-Pentanol sec-butyl alcohol 3-Pentanol ter- butyl alcoho |
| 9 | Esterification of CH3COOH isreaction | Acid base Electrophilic Redox Nucleophilic |
| 10 | The alcohol that does not form curbonyl compound on oxidation | Ethanol iso-butyl alcohol ter-butyl alcohol neo pentyl alcohol |
| 11 | Tertiary alcohols have alpha bydrogens | 1 Zero 2 3 |
| 12 | 1, 3, 5-Pentanetriol has secondary carbon |
3 1 2 Zero |
| 13 | CH3CH2CH2OH--------A---------B Here B is | Propyne Propanal Propene Propane |
| 14 | The synthesis of ethene from ethyl alcohol is a reaction | Dehydration Polymerization Addition Substitution |
| 15 | The number of resonating structures of phenoxide ion are | 3 5 6 4 |
| 16 | The strongest conjugate base is | OH- CH3O- C6H5O- CH3COO- |
| 17 | One of the following can produce greater number of moles of ethyl chloride on reacting with escess of ethanol | PCI5 PCI3 HCI/ZnCl2 SOCI2 |
| 18 | During esterifcation, the alcobol molecule acts as: | Oxidizing agent Electrophile Reducing agent Nucleophile |
| 19 | The acidity of phenol is due to its | Nature of Benzene Double bond in benzene ring Natute of phenoxide ion Hydroxyl group |
| 20 | Reaction of alcohol with hydrogen chloride, in the presence of Zinc chloride yields | Ketone Carboxylic Alkyl halide Ester |
