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		A. Aqueous bromine B. Dilute HNO₃ C. Dilute HCI D. CH₃COCI
2	In Lucas test teriary alcohol make an oily layer	A. Immediately B. In 10 mins C. On heating D. Not
3	To prepare ethanol by fernentation the optimum temp. is	A. 10 - 20°C B. 25 - 30°C C. 20°C D. 35°C
4	Phenol is a weak acid. The correct order of acid strength of carboxylic acid, phenol and alcohol is	A. Carboxylic acid > phenol > alcohol B. Carboxylic acid > alcohol > phenol C. Phenol > carboxylic acid > alcohol D. Alcohol > phenol > carboxylic acid
5	Use of ethanol as:	A. Drink B. Solvent and fuel C. In beverage D. All of these
6	Which bond shows maximum hydrogen bonding with water?	A. CH₃OH B. C₂H₅OH C. CH₃----O----CH₃ D. C₆H₅OH
7	Which compound has the maximum repulsion with water?	A. C₆H₆ B. C₂H₅OH C. CH₃CH₂CH₂OH D. CH₃----O---CH₃
8	Picric acid is	A. 2, 4, 6-Trinitrotoluene B. 2, 4, 6-Tribomoethanol C. 2, 4,6-Trinitrophenol D. Para-Nitrophenol
9	Oxidation of 2-propanol gives	A. Propanone B. Butanone C. Pentanone D. None of these
10	When phenol is reduced in the presence of Zn dust, we get	A. Cyclohexene B. Cyclohexane C. Benzene D. Benzyne

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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

Which compound is more soluble in water

A compound is soluble in conc. H2SO4, it does not decolourise bromine in carbon tetrachloride but is oxidized by chromic anhydride in aqueous sulphuric acid within two seconds, turning orange solution to blue, green and then opaque. The original compound is

The strongest acid among the following aromatic compound is

Alcohol fermentation is brought about by the action of

Which of the following is known as wood spirit

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

Primary and secondary alcohols on action of red hot copper give

Which of the following is produced when an aqueous solution of butan-2-ol is refluxed with dil acidified KMnO4

Absolute alcohol is obtained by adding rectified apirit in alcohol:

When sodium metal reacts with alcohols

When phenol is reduced in the presence of Zn dust, we get

Alcohols are derivatives of:

Carbolic acid is the other name for

Ethanol is prepared in Pakistan form fermentation of:

Methanol is prepared from CO and H2 using catalyst:

Phenol is more readily soluble in

Which compound is more soluble in water

Na reacts with phenol to produce

Methyl alcohol is not used:

Which is used as an antifreeze?

Which compound contains - OH in their molecule

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

Dow's process is used for the preparation of

An organic compound 'X' on treatment with acidified K2Cr2O7gives a compound 'Y' which reacts with I2and sodium carbonate to form Triodomethane. The compound 'X' is

Which enzyme is not involved in fermentation of strach

Sodium phenoxide reacts with CO2at 400 K and 4.7 atm pressure to give

Phenols are derivative of:

Salol is prepared from

Which more acidic?

If an electrophile attacks then ______ bond breaks first

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ECAT Chemistry Chapter 22 Important MCQ's

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A compound is soluble in conc. H₂SO₄, it does not decolourise bromine in carbon tetrachloride but is oxidized by chromic anhydride in aqueous sulphuric acid within two seconds, turning orange solution to blue, green and then opaque. The original compound is

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

Which of the following is produced when an aqueous solution of butan-2-ol is refluxed with dil acidified KMnO₄

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

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

An organic compound 'X' on treatment with acidified K₂Cr₂O₇gives a compound 'Y' which reacts with I₂and sodium carbonate to form Triodomethane. The compound 'X' is

Sodium phenoxide reacts with CO₂at 400 K and 4.7 atm pressure to give