ECAT Chemistry Chapter 22 Alcohols, Phenols and Ethers Online Test With Answers

ECAT Chemistry Chapter 22 Alcohols, Phenols and Ethers Online Test

Sr. # Questions Answers Choice
1 Which of the following statements is correct? Phenol is less acidic than ethyl alcohol Phenol is more acidic than ethanol Phenol is more acidic than carbonic acid Phenol is more acidic than CH<sub>3</sub>COOH
2 The order of reactivity of halogen acids for reaction with C2H5OH is HCl &gt; HBr &gt; HI HI &gt; HBr &gt; HCl HBr &gt; HI &gt; HCl HBr &gt; HCl &gt; HI
3 Sodium phenoxide reacts with CO2at 400 K and 4.7 atm pressure to give Sodium salicylate Salicyl aldehyde Catechol Benzoic acid
4 Grignard reagent on reaction with a ketone forms Tertiary alcohol Secondary alcohol Primary alcohol Carboxylic acid
5 On heating glycerol with conc. Sulphuric acid a compound with unpleasant odour is obtained. The compound is Methyl alcohol Formic acid Prop-2-enal Glycerol sulphate
6 Phenol is more readily soluble in Dil. HCl Both NaOH and HCl NaOH sol Sodium bicarbonate solution
7 Scientific study of fermentation was first made by Buchner Liebig Biot Pasteur
8 C2H5OH can be differentiated from CH3OH by Reaction with HCl Reaction with NH<sub>3</sub> Iodoform test Solubility in water
9 Which is used as an antifreeze? Glycol Ethyl alcohol Water Methanol
10 Which of the following groups will increase the acidity of phenol? -NO<sub>2</sub> -CN -X (halogens) All
11 The strongest acid among the following aromatic compound is Ortho-nitrophenol Para-chlorophenol Para-nitrophenol Meta-nitrophenol
12 Ethyl alcohol on oxidation with K2Cr2O7gives Acetic acid Acetaldehyde Formaldehyde Formic acid
13 Primary and secondary alcohols on action of red hot copper give Aldehydes and ketones respectilvely ketones and aldehydes respectively Only aldehydes Only ketones
14 Alcohol fermentation is brought about by the action of CO<sub>2</sub> O<sub>2</sub> Invertase Yeast
15 Alcohols reacts with Grignard reagent to form Alkanes Alkenes Alkynes All
16 Alcohols of low molecular weight are Soluble in water Soluble in water on heating Insoluble in water Insoluble in all solvents
17 Hydrolytic coversion of sucrose into glucose and fructose is known as Induction Inversion Insertion Inhibition
18 Mild oxidation of glycerol with H2O2/FeSO4gives Glyceraldehyde Dihydroxy acetone Glycerose None
19 Ethanol containing some methanol is called Absolute spirit Rectified spirit Power alcohol Methylated spirit
20 Phenol is heated with CCl4and alkaline KOH when salicylic acid is produced.The reaction is known as Frledel-Craft reaction Riemer-Tiemann's reaction Rosenmund's reaction Sommelet reaction
21 Salol is prepared from Salicylic acid and phenol Salicylic acid and methyl alcohol Both None
22 Maximum number of active hydrogens are present in Acetic acid Glycerol Methane Methanol
23 Dehydration of glycerol give Propane Propene Acrolein Benzene
24 Which of the following cannot be produced by acidic dehydration of alcohols? Ethers Aldehyde Alkyl Hydrogen sulphate Alkene
25 Ethyl alcohol is industrially prepared from ethylene by permanganate oxidation Catalytic reduction Absorbing in H<sub>2</sub>SO<sub>4</sub>followed by hydrolysis Fermentation
26 Which one is primary alcohol? Buten-2-ol Propan-2-ol Butaon-1-ol 2,3-Dimethylhexane-4-ol
27 Which isomers of C5H11OH gives, on dehydration, the greatest number of different alkenes
28 Carbolic acid is the other name for Methanol Ethanol Propanol Phenol
29 An alcohol with molecular formula CnH2n+1OH has a chiral carbon atom but does not react with MnO-4/H+what is the least number of carbon atoms such an alcohol could possess 5 6 7 8
30 Which is a reagent for Lucas test ZnCl<sub>2</sub>+ Conc. HCl Zn Na Br
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