ECAT Pre Engineering Chemistry Chapter 22 MCQ Test With Answer

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ECAT Chemistry Chapter 22 Important MCQ's

Sr.#	Question	Answer
1	Which isomers of C₅H₁₁OH gives, on dehydration, the greatest number of different alkenes
2	Organic acid without a carboxylic acid group is	A. Ascorbic acid B. Vinegar C. Oxalic acid D. Picric acid
3	Which enzyme is not involved in fermentation of strach	A. Diastase B. Zymase C. Urease D. Invertase
4	When ethylene glycol is heated with acidified potassium permanganate, the main organic compound obtained is	A. Oxalic acid B. Glyoxal C. Formic acid D. Ethanol
5	The organic compounds which are derivative of hydrocarbons of oxygen are:	A. Carbohydrates B. Phenols C. Alcohals D. All of these
6	The order of reactivity of halogen acids for reaction with C₂H₅OH is	A. HCl > HBr > HI B. HI > HBr > HCl C. HBr > HI > HCl D. HBr > HCl > HI
7	Diethyl ether is obtained by Williamsons synthesis using	A. Ethanol + Na + C₂H₅Br B. Ethanol + Mg + C₂H₅Br C. Methanol + Na + CH₃Br D. Methanol + Mg + CH₃Br
8	Which of the following will not give iodoform test?	A. Ethanol B. Ethanal C. Isopropyl alcohol D. Benzyl alcohol
9	The hydroxyl derivatives of aromatic hydrocarbons which have the -OH group directly bonded to the ring C-atom are called	A. Alcohols B. Ketones C. Esters D. Phenols
10	Which of the following groups will increase the acidity of phenol?	A. -NO₂ B. -CN C. -X (halogens) D. All

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ECAT Pre Engineering Chemistry Chapter 22 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 22 Alcohols, Phenols and Ethers

ECAT Chemistry Chapter 22 Alcohols, Phenols and Ethers

Organic acid without a carboxylic acid group is

The order of reactivity of halogen acids for reaction with C2H5OH is

Alcohols react with carboxylic acid to produce the class of compounds known as

Which compound shows more hydrogen bonding?

Which of the following will not give iodoform test?

Which more acidic?

95% alcohol is called

How many alcohol (including both structural isomers and stereoisomers) can have the molecular formula C4H10O

The boiling point of glycerol is more than propanal because of

Which of the following compound is obtained on passing ethanol vapours on heated Al2O3?

The hydroxyl derivatives of aromatic hydrocarbons which have the -OH group directly bonded to the ring C-atom are called

Which is not the enzyme involved in the preparation of ethyl alcohol by fermentation of starch

Alcohols are derivatives of:

In Lucas test teriary alcohol make an oily layer

An organic compound will decolorise dill acidified (aq) KMnO4on warming, but will not decolorise bromine water. What is the compound

Scientific study of fermentation was first made by

Which one is primary alcohol?

Phenol is heated with CCl4and alkaline KOH when salicylic acid is produced.The reaction is known as

The organic compounds which are derivative of hydrocarbons of oxygen are:

denaturing of alcohol is done by adding methanol in ethanol:

Oxidation of methyl alcohol gives

The test used for the detection of ethanol in the mouth of a drunk driver is that the drunk driver is asked to blow air from mouth into a solution of K2Cr2O7and H2SO4. The colour changes, if the driver is drunk

Propanone is the product obtained by dehydrogenation of

In Dow's method, phenol can be made from

Alcohols of low molecular weight are

Methanol is prepared from CO and H2 using catalyst:

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

Ethanol can be converted into ethanoic acid by

Maximum number of active hydrogens are present in

Nitration of phenol gives

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ECAT Chemistry Chapter 22 Important MCQ's

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The order of reactivity of halogen acids for reaction with C₂H₅OH is

How many alcohol (including both structural isomers and stereoisomers) can have the molecular formula C₄H₁₀O

Which of the following compound is obtained on passing ethanol vapours on heated Al₂O₃?

An organic compound will decolorise dill acidified (aq) KMnO₄on warming, but will not decolorise bromine water. What is the compound

Phenol is heated with CCl₄and alkaline KOH when salicylic acid is produced.The reaction is known as

The test used for the detection of ethanol in the mouth of a drunk driver is that the drunk driver is asked to blow air from mouth into a solution of K₂Cr₂O₇and H₂SO₄. The colour changes, if the driver is drunk

Methanol is prepared from CO and H_{2 using catalyst:}

An alcohol with molecular formula C_nH_2n+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