Grade 11 · Chemistry
This quiz helps revise “Chemistry and the environment” in Chemistry for grade 11. It has 25 questions in five categories: Air and climate, Water under stress, pH in nature, Green chemistry, Materials and waste. Questions get harder as the points go up, from 100 to 500.
The 100- and 200-point questions are open here. The rest show only their first words, and there are no answers: all of that is in the game itself.
Which greenhouse gas is rising mainly because humans burn coal, oil, and natural gas?
How many oxygen atoms are in one ozone molecule?
Which part of sunlight…
In the gameWhich stable compounds once…
In the gameWhich gas has a…
In the game
Which element in common disinfectants is added to drinking water to kill harmful microbes?
What is the nutrient enrichment of water that can trigger rapid algal growth called?
Which two elements most…
In the gameWhich gas becomes scarce…
In the gameWhich membrane process removes…
In the gameWhat pH does a neutral aqueous solution have at 25 °C?
Which weak acid forms when CO₂ dissolves in water?
By what factor does…
In the gameAs the ocean acidifies…
In the gameWhich compound in limestone…
In the gameWhich first green-chemistry principle favors avoiding waste over treating it after it forms?
Which metric measures how much reactant mass ends up in the desired product?
Which reaction helper, not…
In the gameWhich kind of starting…
In the gameWhich principle favors running…
In the game
What environment in a landfill favors methane formation as organic waste breaks down without air?
What is the controlled microbial breakdown of organic matter in the presence of oxygen called?
Which plastic carries…
In the gameWhich plastic carries…
In the gameWhat is liquid leaching…
In the gameAll 25 questions and the answers are in the game. Invite your class or friends with a link — guests need no account.