C&EN weekly chemistry news quiz, May 1

Visit the C&EN website to play our latest quiz: cenm.ag/may-1-quiz

What analytical technique did University of Oregon researchers use to determine the roast strength of coffee?

• Cyclic voltammetry

• Mass spectrometry

• Chromatography

• X-ray crystallography

What global ranking in sales of biosimilars will Sun Pharma achieve after acquiring Organon?

• 7th largest

• 5th largest

• 3rd largest

• 10th largest

How much did Sun Pharma pay per share to acquire Organon?

• $14.00 per share

• $11.75 per share

• $12.00 per share

• $15.50 per share

What is the name of the ligand used to sandwich iron(I) to make it air stable?

• Durene

• Benzene

• Toluene

• Naphthalene

How many parameters did innovation center Cure use to assess academic institutions for industrial readiness?

• 25 parameters

• 20 parameters

• 30 parameters

• 15 parameters

What size threshold defines nanoplastics?

• Smaller than 1 µm

• Smaller than 10 µm

• Smaller than 0.1 µm

• Smaller than 5 µm

What animal inspired the chemistry of a gel used to capture nanoplastics?

• Jellyfish

• Octopus

• Sea star

• Sea urchin

C&EN used artificial intelligence in the development of this game, but all the questions and answers were checked by one of our human editors.

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