Cleaning trivia

8 cleaning trivia questions, from easy to hard. Tap a question to see the answer. They're real questions from Rubicon, where you type the answer yourself and an AI judge reads what you meant.

This set covers Adhesives, Sealants & DIY Materials, Cleaning & Laundry Science, Cleaning Agents, Fabrics at Home, Food-Safe Materials, Pest Control & Insecticides, Soap, Skin & Hair and Water Quality & Home Water Treatment.

Questions and answers

  1. Easy In CA glue, what chemical family does the abbreviation CA name?

    CA stands for cyanoacrylate, which is the fast-acting resin family that forms super glue.

  2. Easy Why do glass cleaners with alcohol dry without leaving visible streaks?

    Alcohol evaporates completely into the air without leaving any solid mineral residues behind on the glass surface.

  3. Easy Why does bubbling occur when vinegar cleans crusty hard-water buildup inside kettles?

    A chemical reaction converts solid calcium carbonate into soluble salts while releasing carbon dioxide gas.

  4. Medium Why do synthetic shirts cling and spark much more frequently during cold, dry winter months?

    Dry air lacks moisture to dissipate electrical charges, allowing static electricity from friction to accumulate on synthetic fibers.

  5. Medium What causes tiny pinholes to appear in aluminum foil used to cover an open pan of lasagna?

    Acidic ingredients in the dish corrode the aluminum foil through a chemical reaction that eats away tiny holes.

  6. Medium What collective feeding behavior allows a foraging worker ant to pass swallowed bait directly to her nestmates?

    Worker ants store liquid food internally and regurgitate it directly into the mouths of other colony members.

  7. Hard Among human skin, fresh lemon juice, baking soda, and drain-cleaning lye, which substance is the most alkaline?

    Drain-cleaning lye is the most alkaline substance among the given options.

  8. Hard Why must automatic dishwashers periodically draw concentrated saltwater across their built-in resin beads during regeneration cycles?

    Saltwater replenishes the resin beads with fresh sodium ions while washing trapped minerals down the drain.

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