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 compound shows hydrogen bonding	A. C₂H₆ B. C₂H₅CI C. CH₃- O - CH₃ D. C₂H₅OH
2	Williamson's synthesis is used to prepare	A. Diethylether B. Phenolphthalein C. Hydrogenation D. Bakelite
3	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
4	3 moles of ethanol react with one mole of phosphorus tribromide to from 3 moles of bromoethane and on mole of X. Which of the following is X?	A. H₃PO₄ B. H₃PO₂ C. HPO₃ D. H₃PO₃
5	Which of the following statements is correct?	A. Phenol is less acidic than ethyl alcohol B. Phenol is more acidic than ethanol C. Phenol is more acidic than carbonic acid D. Phenol is more acidic than CH₃COOH
6	Which is possible in ethers?	A. Reactivity high B. Oxidation and reduction C. Reactivity towards bases D. Towards acids
7		A. A primary alcohol B. A secondary alcohol C. An eher D. A phenol
8	What will react differently with the two isomeric pentols, (CH₃)₃CCH₂OH and (CH₃)₂CH CH₂CH₂OH	A. Acidified (aq) KMnO₄ B. Concentrated H₂SO₄ C. PCl D. Sodium
9	Which isomers of C₅H₁₁OH gives, on dehydration, the greatest number of different alkenes
10	Taste of lower alcohols is:	A. Sweet B. Bitter C. Our D. Salty

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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

Picric acid is

Organic acid without a carboxylic acid group is

3 moles of ethanol react with one mole of phosphorus tribromide to from 3 moles of bromoethane and on mole of X. Which of the following is X?

Which of the following is correct?

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

Ethanol is prepared in Pakistan form fermentation of:

95% alcohol is called

On heating glycerol with conc. Sulphuric acid a compound with unpleasant odour is obtained. The compound is

The formula of secondary alcohol is

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

Maximum number of active hydrogens are present in

If an electrophile attacks then ______ bond breaks first

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

Treatment of a secondary alcohol with a suitable oxidizing agent (K2Cr2O7) results in the formation of

An organic compound A reacts with methyl magnesium iodide to form an addition product which on hydrolysis forms the compound B . Compound B gives blue colour salt in Victor Meyer's test.The compounds A and B are respectively

Which of the following compound is known as oil of winter green?

When ethylene glycol is heated with acidified potassium permanganate, the main organic compound obtained is

According to Lewis concept ethers behave as:

The malt-sugar in the presence of yeast or invertase gives

During dehydration of alcohols to alkenes by heating with conc. H2SO4, the initial step is

When alcohol reacts with concentreated H2SO4intermediate compound formed as

Industrial alcohol may be denaturated by the addition of

Which is possible in ethers?

When phenol is distilled with zinc dust. It is reduced to

Phenol gives ---------- Colour with neutral FeCl3solution

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

A compound of the formula C4H10Oreacts with sodium and undergoes oxidation to give a carbonyl compound which does not reduce Tollen's reagent, the original compound is

When sodium metal reacts with alcohols

Oxidation of methyl alcohol gives

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ECAT Chemistry Chapter 22 Important MCQ's

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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

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

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

Treatment of a secondary alcohol with a suitable oxidizing agent (K₂Cr₂O₇) results in the formation of

During dehydration of alcohols to alkenes by heating with conc. H₂SO₄, the initial step is

When alcohol reacts with concentreated H₂SO₄intermediate compound formed as

Phenol gives ---------- Colour with neutral FeCl₃solution

A compound of the formula C₄H₁₀O_{reacts with sodium and undergoes oxidation to give a carbonyl compound which does not reduce Tollen's reagent, the original compound is}