ECAT Pre Engineering Chemistry Chapter 22 MCQ Test With Answer

• 1-bromobutane A
• 2-bromobutane B
• 1-bromo-2-methyl propane C
• 2-bromo-2-methyl propane D

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

• 
  A
• 
  B
• 
  C
• 
  D

Ethanol can be converted into ethanoic acid :

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

Ethyl alcohol is industrially prepared from ethylene by

• permanganate oxidation A
• Catalytic reduction B
• Absorbing in H₂SO₄followed by hydrolysis C
• Fermentation D

Ethyl alcohol on oxidation with K₂Cr₂O₇gives

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

Grignard reagent on reaction with a ketone forms

• Tertiary alcohol A
• Secondary alcohol B
• Primary alcohol C
• Carboxylic acid D

In its reaction with Na, 1 mol of X gives 1 mol of H_2(g). What is X

• CH₃CH₂CH₂CH₂OH A
• (CH₃)₃COH B
• CH₃CH₂CH₂CO₂H C
• CH₃CH(OH)CO₂H D

95% alcohol is called

• Rectified spirit A
• Spirit of wine B
• Spirit C
• Methylated D

Absolute alcohol is obtained by adding rectified apirit in alcohol:

• Water A
• Na₂CO₃ B
• NaOH C
• CaO D

Which compound does not show hydrogen bonding with water

• CH₃OH A
• C₂H₅OH B
• CH₃- O - CH₃ C
• C₆H₅OH D

Which compound is called a universal solvent?

• H₂O A
• CH₃OH B
• C₂H₅OH C
• CH₃----O---CH₃ D

I-Phenylethanol can be prepared by reaction of benzaldehyde with

• Methyl iodide an Magnesium A
• Methyl bromide B
• Methyl bromide and AIBr₃ C
• C₂H₅l and Mg D

Nitration of phenol gives

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

Oxidation of ter-alcohol gives:

• Aldehyde A
• Formaldehyde B
• Ketone C
• Alkens D

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

• Ethylether A
• Acetone B
• Ethane C
• Ethanol D

Rectified spirit contains alcohol about:

• 80% A
• 85% B
• 90% C
• 95% D

Which enzyme is not involved in fermentation of strach

• Diastase A
• Zymase B
• Urease C
• Invertase 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

Which of the following is known as wood spirit

• Ethyl alcohol A
• Propyl alcohol B
• Methyl alcohol C
• Butyl alcohol D

Which of the following is used as anesthetics

• Alcohol A
• Diethylether B
• Phenol C
• Dimethyl ether D

Which of the following is weakly acidic in nature

• Alcohol A
• Phenol B
• Aidehyde C
• Amide D

Alcohols are derivatives of:

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

Which compound shows hydrogen bonding

• C₂H₆ A
• C₂H₅CI B
• CH₃- O - CH₃ C
• C₂H₅OH D

Which of the following will not give iodoform test?

• Ethanol A
• Ethanal B
• Isopropyl alcohol C
• Benzyl alcohol D

Which is a reagent for Lucas test

• ZnCl₂+ Conc. HCl A
• Zn B
• Na C
• Br 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

When alcohol reacts with concentreated H₂SO₄intermediate compound formed as

• carbonium ion A
• alkoxy ion B
• alkyl hydrogen sulphate C
• non of these D

Ethyl alcohol prepared during fermentation is pure:

• 20% A
• 10% B
• 11% C
• 12% D

Which of the following is correct?

• Reduction of any aldehyde gives secondary alcohol A
• Reaction of vegetable oil with H₂SO₄gives glycerine B
• Alcoholic iodine with NaOH gives iodoform C
• Sucrose on reaction with NaCl gives invert sugar D

Which more acidic?

• o-cresol A
• p-nitrophenol B
• phenol C
• m-cresol D