Major Competitive Exams

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Q. Which of the following is the correct IUPAC name for the compound with the formula C6H5-CH2-CH2-COOH?
  • A. Phenylbutanoic acid
  • B. Butylphenyl acid
  • C. Benzoic acid
  • D. Phenylpropanoic acid
Q. Which of the following is the correct IUPAC name for the compound with the formula C3H7-COOH?
  • A. Propanoic acid
  • B. Butanoic acid
  • C. Acetic acid
  • D. Isobutyric acid
Q. Which of the following is the correct IUPAC name for the compound with the formula C6H5-CH2-CHO?
  • A. Benzaldehyde
  • B. Benzylaldehyde
  • C. Phenylacetaldehyde
  • D. Phenylaldehyde
Q. Which of the following is the correct IUPAC name for the compound with the structure CH3-CH2-CH2-CH2-CHO?
  • A. Butanal
  • B. Pentanal
  • C. Hexanal
  • D. Heptanal
Q. Which of the following is the correct IUPAC name for the compound with the structure CH3-CH2-CH(CH3)-OH?
  • A. 2-Methylpropan-1-ol
  • B. 2-Methylbutan-1-ol
  • C. 3-Methylbutan-1-ol
  • D. 1-Methylbutan-2-ol
Q. Which of the following is the correct IUPAC name for the compound with the structure CH3-CH2-CH(CH3)-COOH?
  • A. 3-Methylbutanoic acid
  • B. 2-Methylbutanoic acid
  • C. Butanoic acid
  • D. Pentanoic acid
Q. Which of the following is the correct IUPAC name for the compound with the structure CH3-CH2-CH2-CH2-CH2-CHO?
  • A. Hexanal
  • B. Pentanal
  • C. Heptanal
  • D. Octanal
Q. Which of the following is the correct method to prepare phenol? (2022)
  • A. Hydrolysis of chlorobenzene
  • B. Oxidation of benzyl alcohol
  • C. Reduction of benzoic acid
  • D. Dehydration of phenyl ethanol
Q. Which of the following is the correct mirror image of the letter 'M'? (2019)
  • A. Option A
  • B. Option B
  • C. Option C
  • D. Option D
Q. Which of the following is the correct order of acidity for the following compounds: phenol, ethanol, and water?
  • A. Phenol > Water > Ethanol
  • B. Water > Phenol > Ethanol
  • C. Ethanol > Water > Phenol
  • D. Water > Ethanol > Phenol
Q. Which of the following is the correct order of acidity for the given compounds?
  • A. Phenol > Ethanol > Water
  • B. Ethanol > Water > Phenol
  • C. Water > Phenol > Ethanol
  • D. Phenol > Water > Ethanol
Q. Which of the following is the correct order of basicity for the given amines?
  • A. RNH2 > R2NH > R3N
  • B. R3N > R2NH > RNH2
  • C. R2NH > R3N > RNH2
  • D. RNH2 > R3N > R2NH
Q. Which of the following is the correct order of magnitude for the speed of light? (2023)
  • A. 10^6 m/s
  • B. 10^8 m/s
  • C. 10^10 m/s
  • D. 10^12 m/s
Q. Which of the following is the correct order of reactivity of haloalkanes in nucleophilic substitution reactions? (2023)
  • A. R-I > R-Br > R-Cl > R-F
  • B. R-F > R-Cl > R-Br > R-I
  • C. R-Cl > R-Br > R-I > R-F
  • D. R-Br > R-I > R-Cl > R-F
Q. Which of the following is the correct order of reactivity of haloalkanes towards nucleophilic substitution? (2021)
  • A. R-I > R-Br > R-Cl > R-F
  • B. R-F > R-Cl > R-Br > R-I
  • C. R-Cl > R-Br > R-I > R-F
  • D. R-Br > R-I > R-Cl > R-F
Q. Which of the following is the correct order of the base systems from least to most complex? (2023)
  • A. Decimal, Binary, Hexadecimal
  • B. Binary, Decimal, Hexadecimal
  • C. Hexadecimal, Binary, Decimal
  • D. Decimal, Hexadecimal, Binary
Q. Which of the following is the correct property of logarithms?
  • A. log_a(b) + log_a(c) = log_a(bc)
  • B. log_a(b) - log_a(c) = log_a(b/c)
  • C. log_a(b^c) = c * log_a(b)
  • D. All of the above
Q. Which of the following is the correct reaction for the hydrogenation of 1-butyne?
  • A. C4H6 + H2 → C4H10
  • B. C4H6 + H2 → C4H8
  • C. C4H6 + H2 → C4H12
  • D. C4H6 + H2 → C4H4
Q. Which of the following is the correct representation of 0.00045 in scientific notation?
  • A. 4.5 × 10^-4
  • B. 4.5 × 10^-3
  • C. 45 × 10^-5
  • D. 45 × 10^-4
Q. Which of the following is the correct representation of 0.0004500 in scientific notation?
  • A. 4.500 x 10^-4
  • B. 4.5 x 10^-4
  • C. 4.5000 x 10^-4
  • D. 4.5 x 10^-5
Q. Which of the following is the correct representation of 0.0004500 in terms of significant figures?
  • A. 4.500 x 10^-4
  • B. 4.5 x 10^-4
  • C. 0.00045
  • D. 0.000450
Q. Which of the following is the correct representation of 0.00056 in scientific notation?
  • A. 5.6 x 10^-4
  • B. 56 x 10^-5
  • C. 0.56 x 10^-3
  • D. 5.6 x 10^3
Q. Which of the following is the correct representation of 0.001 in scientific notation? (2023)
  • A. 1 x 10^-3
  • B. 1 x 10^3
  • C. 1 x 10^1
  • D. 1 x 10^-1
Q. Which of the following is the correct representation of 15 modulo 4?
  • A. 3
  • B. 1
  • C. 0
  • D. 2
Q. Which of the following is the correct representation of the decimal number 15 in base-2?
  • A. 1111
  • B. 1011
  • C. 1101
  • D. 1001
Q. Which of the following is the correct representation of the speed of light?
  • A. 3.00 × 10^8 m/s
  • B. 3.00 × 10^6 m/s
  • C. 3.00 × 10^10 m/s
  • D. 3.00 × 10^9 m/s
Q. Which of the following is the correct representation of the unit of energy? (2019)
  • A. Joule
  • B. Newton-meter
  • C. Both A and B
  • D. None of the above
Q. Which of the following is the correct simplification of (x^3 * y^2) / (x^2 * y)?
  • A. x^(3-2) * y^(2-1)
  • B. x^(5) * y^(1)
  • C. x^(1) * y^(1)
  • D. x^(1) * y^(3)
Q. Which of the following is the correct simplification of (x^3 * y^2)^(2)?
  • A. x^6 * y^4
  • B. x^5 * y^2
  • C. x^3 * y^2
  • D. x^2 * y^3
Q. Which of the following is the correct simplification of (x^3y^2)^2?
  • A. x^6y^4
  • B. x^5y^2
  • C. x^3y^2
  • D. x^2y^3
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