Major Competitive Exams
Q. What is the product of the reaction between an aldehyde and a Grignard reagent?
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A.
Alcohol
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B.
Ketone
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C.
Carboxylic acid
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D.
Alkane
Solution
The reaction between an aldehyde and a Grignard reagent produces a secondary alcohol after hydrolysis.
Correct Answer: A — Alcohol
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Q. What is the product of the reaction between an aldehyde and a primary amine?
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A.
Imine
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B.
Amide
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C.
Amino acid
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D.
Alcohol
Solution
The reaction between an aldehyde and a primary amine produces an imine.
Correct Answer: A — Imine
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Q. What is the product of the reaction between an amine and an acid?
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A.
Amide
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B.
Salt
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C.
Ester
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D.
Alcohol
Solution
The reaction between an amine and an acid produces a salt, as the amine acts as a base and accepts a proton from the acid.
Correct Answer: B — Salt
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Q. What is the product of the reaction between an amine and an acyl chloride?
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A.
Amide
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B.
Ester
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C.
Carboxylic acid
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D.
Alcohol
Solution
Amines react with acyl chlorides to form amides through a nucleophilic acyl substitution reaction.
Correct Answer: A — Amide
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Q. What is the product of the reaction between benzaldehyde and phenylmagnesium bromide?
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A.
Benzyl alcohol
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B.
Benzophenone
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C.
Diphenylmethanol
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D.
Benzene
Solution
The reaction produces Diphenylmethanol when benzaldehyde reacts with phenylmagnesium bromide.
Correct Answer: C — Diphenylmethanol
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Q. What is the product of the reaction between benzene and bromine in the presence of FeBr3?
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A.
Bromobenzene
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B.
Benzyl bromide
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C.
Bromocyclohexane
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D.
Phenol
Solution
The reaction of benzene with bromine in the presence of a Lewis acid like FeBr3 leads to the formation of bromobenzene.
Correct Answer: A — Bromobenzene
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Q. What is the product of the reaction between chlorobenzene and sodium hydroxide at high temperature?
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A.
Phenol
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B.
Benzyl alcohol
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C.
Chlorobenzene
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D.
Sodium phenoxide
Solution
Chlorobenzene reacts with sodium hydroxide in the presence of heat to form phenol via nucleophilic substitution.
Correct Answer: A — Phenol
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Q. What is the product of the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH)? (2022)
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A.
Sodium chloride and water
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B.
Sodium chloride and hydrogen
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C.
Hydrogen and oxygen
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D.
Sodium and water
Solution
The reaction between HCl and NaOH produces sodium chloride (NaCl) and water (H2O).
Correct Answer: A — Sodium chloride and water
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Q. What is the product of the reaction between phenol and bromine water?
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A.
Bromobenzene
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B.
2,4,6-tribromophenol
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C.
Bromophenol
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D.
Bromobutane
Solution
Phenol reacts with bromine water to form 2,4,6-tribromophenol, a white precipitate.
Correct Answer: B — 2,4,6-tribromophenol
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Q. What is the product of the reaction between phenol and bromine?
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A.
Bromobenzene
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B.
Bromophenol
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C.
Bromobutane
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D.
No reaction
Solution
Phenol reacts with bromine to form bromophenol, which is a substitution reaction.
Correct Answer: B — Bromophenol
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Q. What is the product of the reaction between sodium (Na) and chlorine (Cl2)? (2019)
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A.
NaCl
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B.
NaCl2
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C.
Na2Cl
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D.
Na2Cl2
Solution
Sodium reacts with chlorine to form sodium chloride (NaCl).
Correct Answer: A — NaCl
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Q. What is the product of the reaction of 1-butyne with HBr?
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A.
1-bromobutane
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B.
2-bromobutane
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C.
Butane
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D.
Butyne
Solution
The reaction of 1-butyne with HBr leads to the formation of 2-bromobutane due to Markovnikov's rule.
Correct Answer: B — 2-bromobutane
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Q. What is the product of the reaction of an alcohol with a carboxylic acid?
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A.
Ester
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B.
Ether
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C.
Aldehyde
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D.
Ketone
Solution
The reaction of an alcohol with a carboxylic acid produces an ester through a process called esterification.
Correct Answer: A — Ester
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Q. What is the product of the reaction of chlorobenzene with sodium hydroxide at high temperature?
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A.
Phenol
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B.
Benzene
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C.
Chlorobenzene
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D.
Sodium chloride
Solution
The reaction of chlorobenzene with sodium hydroxide at high temperature leads to the formation of phenol through nucleophilic aromatic substitution.
Correct Answer: A — Phenol
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Q. What is the product of the reaction of ethylene with chlorine?
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A.
Ethyl chloride
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B.
1,2-dichloroethane
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C.
Chloroethane
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D.
Ethylene dichloride
Solution
The reaction of ethylene with chlorine results in the formation of 1,2-dichloroethane through an electrophilic addition mechanism.
Correct Answer: B — 1,2-dichloroethane
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Q. What is the product of the reaction of propene with HBr?
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A.
1-Bromopropane
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B.
2-Bromopropane
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C.
Propyl bromide
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D.
Bromopropene
Solution
The reaction follows Markovnikov's rule, leading to the formation of 2-Bromopropane.
Correct Answer: B — 2-Bromopropane
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Q. What is the product of the reduction of Cr2O7^2- in acidic medium?
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A.
CrO4^2-
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B.
Cr^3+
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C.
CrO3
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D.
CrO2
Solution
In acidic medium, Cr2O7^2- is reduced to Cr^3+.
Correct Answer: B — Cr^3+
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Q. What is the product of the reduction of Cr2O7²⁻ in acidic medium? (2019)
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A.
CrO4²⁻
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B.
Cr³⁺
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C.
Cr²O3
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D.
CrO2
Solution
In acidic medium, Cr2O7²⁻ is reduced to Cr³⁺.
Correct Answer: B — Cr³⁺
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Q. What is the product of the roots of the equation 2x^2 + 3x - 5 = 0?
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A.
-5/2
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B.
5/2
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C.
2/5
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D.
-2/5
Solution
The product of the roots is c/a = -5/2.
Correct Answer: A — -5/2
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Q. What is the product of the roots of the equation 2x^2 - 3x + 1 = 0?
Solution
Using Vieta's formulas, the product of the roots is 1/2 (c/a = 1/2).
Correct Answer: A — 1/2
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Q. What is the product of the roots of the equation 2x^2 - 8x + 6 = 0?
Solution
The product of the roots of the equation ax^2 + bx + c = 0 is given by c/a. Here, c = 6 and a = 2, so the product is 6/2 = 3.
Correct Answer: A — 3
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Q. What is the product of the roots of the equation 3x^2 + 6x + 2 = 0?
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A.
2/3
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B.
1/3
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C.
1/2
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D.
1/6
Solution
The product of the roots is given by c/a = 2/3.
Correct Answer: B — 1/3
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Q. What is the product of the roots of the equation 3x^2 - 12x + 9 = 0?
Solution
The product of the roots is given by c/a = 9/3 = 3.
Correct Answer: C — 4
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Q. What is the product of the roots of the equation 3x² - 12x + 9 = 0? (2022)
Solution
The product of the roots is given by c/a = 9/3 = 3.
Correct Answer: B — 3
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Q. What is the product of the roots of the equation x^2 - 5x + 6 = 0? (2014) 2014
Solution
The product of the roots is c/a = 6/1 = 6.
Correct Answer: A — 6
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Q. What is the product of the roots of the equation x^2 - 6x + 8 = 0?
Solution
The product of the roots is given by c/a = 8/1 = 8.
Correct Answer: B — 8
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Q. What is the product of the roots of the equation x^2 - 8x + 15 = 0?
Solution
The product of the roots is given by c/a = 15/1 = 15.
Correct Answer: A — 15
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Q. What is the product of the roots of the equation x² + 5x + 6 = 0? (2022)
Solution
The product of the roots is given by c/a = 6/1 = 6.
Correct Answer: A — 6
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Q. What is the product of the roots of the equation x² - 10x + 24 = 0? (2021)
Solution
The product of the roots is given by c/a = 24/1 = 24.
Correct Answer: A — 24
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Q. What is the product of the roots of the equation x² - 8x + 15 = 0? (2022)
Solution
The product of the roots is given by c/a = 15/1 = 15.
Correct Answer: A — 15
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