ECAT Pre Engineering Chemistry Chapter 22 MCQ Test With Answer

Which compound is more soluble in water

• C₂H₅OH A
• C₆H₅OH B
• CH₃OCH₃ C
• n-hexanol D

Ethanol can be converted into ethanoic acid by

• Hydrogenation A
• Hydration B
• Oxidation C
• Fermentation D

Glucose in the presence of zymase is converted into

• Alcohol A
• Acid B
• Ethyl alcohol C
• Ketone D

Which of the following process is employed to convert alkyl halide into alcohol?

• Addition A
• Substitution B
• Dehydrohalogenation C
• Molecular rearrangement D

Ethanol containing some methanol is called

• Absolute spirit A
• Rectified spirit B
• Power alcohol C
• Methylated spirit D

• Aqueous bromine A
• Dilute HNO₃ B
• Dilute HCI C
• CH₃COCI D

Which isomers of C₅H₁₁OH gives, on dehydration, the greatest number of different alkenes

• 
  A
• 
  B
• 
  C
• 
  D

Compound X has molecular formula C₁₀H₁₄O and is unreactive towards mild oxidising agents. What is the structure of the compound formed by dehydration of X

• 
  A
• 
  B
• 
  C
• 
  D

Phenols are derivative of:

• Alkanes A
• Alkenes B
• Alkynes C
• Benzene D

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

• Carbohydrates A
• Phenols B
• Alcohals C
• All of these D

Taste of lower alcohols is:

• Sweet A
• Bitter B
• Our C
• Salty D

The boiling point of glycerol is more than propanal because of

• Hybridisation A
• H-bonding B
• Resonance C
• All these factors D

Which one of the following reacts immediately with conc. HCI in the presence of ZnCI₂

• Primary alcohol A
• Secondary alcohol B
• Tertiary alcohol C
• Ether D

Rectified spirit contains alcohol about:

• 80% A
• 85% B
• 90% C
• 95% D

Which compound will not dissolve in H₂O

• C₆H₆ A
• C₂H₅OH B
• CH₃CH₂CH₂OH C
• CH₃- OH D

• A primary alcohol A
• A secondary alcohol B
• An eher C
• A phenol D

Alcohols reacts with Grignard reagent to form

• Alkanes A
• Alkenes B
• Alkynes C
• All D

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

• 5 A
• 6 B
• 7 C
• 8 D

Derivative of water is:

• Alcohals A
• Phenols B
• Either C
• Phenol D

Nitration of phenol gives

• o-nitrophenol A
• p-nitrophenol B
• m-nitrophenol C
• Both o and p-nitrophenol D

Ethyl alcohol on oxidation with K₂Cr₂O₇gives

• Acetic acid A
• Acetaldehyde B
• Formaldehyde C
• Formic acid D

General formula of alcohol is:

• ROH A
• Ar-OH B
• R-O-R C
• Ph-OH D

Which compound contains - OH in their molecule

• Alcohol A
• Phenol B
• Alcohol and phenol C
• Ether D

Which alcohol gives only one oxidation product when wormed with dil acidified K₂Cr₂O₇

• Butan-1-ol A
• Butan-2-ol B
• 2-methyl propan-1-ol C
• 2-methyl propan-2-ol D

The organic compounds which derivative of hydrocarbons due to oxygen is:

• Phenol A
• Alcohol B
• Alkyl halide C
• Either D

Ethanol is prepared in Pakistan form fermentation of:

• Starch A
• Sugar B
• Glucose C
• Molasses D

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

• Acetaldehyde, tertiary butyl alcohol A
• Acetaldehyde, ethyl alcohol B
• Acetaldehyde, isopropyl alcohol C
• Acetone, isopropyl alcohol D

Oxidation of methyl alcohol gives

• Formaldehyde A
• Acetone B
• Ester C
• Acid D

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

• Ketone A
• Aidehyde B
• Ether C
• Alkyl halide D

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

• Butanol A
• Butanoic acid B
• Butanone C
• Butane D