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MDCAT Chemistry Chapter 16 Alcohols and Phenols Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | Which is most acidic? | H2O C2H5OH C4H9OH CH3-CH2-CH2OH |
| 2 | Which alcohol is most reactive towards sodium metal? | Ter Butyl alcohol n-Propyl alcolol Isopropyl alcohol Have same reactivity |
| 3 | A compound z' decolorizes bromine water and produces white ppt. The compound 'z'is | Alkane Alcohol Phenol Benzene |
| 4 | Ethyl alcohol reacts with PCL and produces: | Haloalkane Alkyl halide & H3PO3, Alkyl halide & POCl3 Alkyl halides &H3PO4. |
| 5 | Tertiary aleohols producewith acidified KMno, | Ketones Aldehydes Malonic acid Alkene |
| 6 | 2,4,6-Trinitrophenol is commonly called as | Phthalic acid Tartaric acid Malonic acid Picric acid |
| 7 | Which of the following undergoes easy dehydration? | 3-MethyIbutan-2-ol Ethanol 2.Methylpropan-2-ol Methanol |
| 8 | Which of the following reactions does not involve formation of carbocation? | SN1 and E1 El and E2 SN1 and SN2 E2 and SN2 |
| 9 | To prepare ethane by Wurtz synthesis the suitable alkyl halide is |
Ethyl iodide any alkyl iodide Ethyl chloride Methyl bromide |
| 10 | Reaction of ethyl bromide with ammonia | <div>Completes in a single step</div><div><br></div> Completes in two steps Continues till N is left with no lone pair is reversible |
| 11 | In beta elimination reaction | carbon number changes unsaturated compound is formed hybridization. ofC remains same pi bonds are decreased |
| 12 | Which is an intermediate in SN1 reaction | Ethoxide ion Carbocation alkyl halide alkene |
| 13 | The reagent for alkaline hydrolysis of ethyl bromide to form ethyl alcohol is | water at room T Alcoholic KOH+heat Ethanol + heat dil. NaOH+ heat |
| 14 | Which pair gives same dehydrohalogenation product | <div>I-Chlorobutane, 2-Chlorobutane</div><div><br></div> I-Chloropropane, 2-Chloropropane I-Bromopentane. 3-Bromopentane iso-butvl chloride. 2°- butyl chloride |
| 15 | In an elimination reaction a more substituted alkene is formed due to the stability associated with | Free radical transition state Activated complex Carbocation |
| 16 | Dehydrohalogenation of secondary butyI bromide will give | Propene 1-Butene Butene 2-Butene |
| 17 | Which of the following reactants will be required to form ethene from ethyl chloride | <sub>Alcoholic KOH</sub> Alkaline KMnO4 Aqucous KOH Aqucous NaOH |
| 18 | Which one among the following is not a good leaving group | HSO4- CI- OH- Br- |
| 19 | In nucleophilie substitution bimolecular reaction the order of reaction with respect to substrate | 2 order 3 order 1st order Zero order |
| 20 | Which compound is obtained hy the elimination reaction on bromoethane? | Butene Ethene Propene Propane |
