C&EN weekly chemistry news quiz, July 17

Visit the C&EN website to play our latest quiz: cenm.ag/july-17-quiz

What sugar has been found in space?

• Erythrulose

• Glucose

• Fructose

• Sucrose

Where was that sugar found?

• Molecular clouds

• Comet trails

• The surface of Mars

• A moon of Jupiter

How do crabs promote methane cycling?

• Methane-consuming microbes flourish in crab burrows.

• Crabs oxidize methane with specialized gill enzymes.

• Burrowing crabs transport the gas into deep marine sediments.

• Crabs break methane molecules apart with their claws.

Why is methane considered a powerful greenhouse gas?

• Methane absorbs infrared radiation more effectively than carbon dioxide over short timescales.

• Methane reflects heat back toward Earth from the upper atmosphere like a mirror.

• Methane combustion releases heat.

• Methane creates holes in the ozone layer, allowing more sunlight through.

New York is suing chemical manufacturers over what chemicals in consumer goods?

• PFAS

• PCBs

• DDT

• CFCs

The lawsuit alleges that manufacturers misled the public about what?

• Health risks

• Product defects

• Emissions standards

• Manufacturing costs

India’s new nuclear-heated plant makes what fuel?

• Hydrogen

• Methane

• Ethanol

• Biodiesel

How does India’s new plant work?

• Water splitting using heat

• Steam reforming of methane

• Water splitting through electrolysis

• Nuclear power generation

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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