Chemical Engineering
Q Phthalic anhydride is produced by the oxidation of _________________?
  • A A. Naphthalene
  • B B. Benzene
  • C C. Toluene
  • D D. Aniline
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Word of the Day
26 Jul
Simultaneously
at the same time.
ایک ہی ΩˆΩ‚Ψͺ Ω…ΫŒΪΊΨŒ ایک Ψ³Ψ§Ψͺھ، بیک ΩˆΩ‚Ψͺ

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