Chemistry I
Chemistry II
Science I
Science II
Random
150
What is the most abundant element in the universe?
Hydrogen
150
This inert chemical was discovered by studying the spectroscopy of the sun.
What is Helium?
150
Which is densier, water or ice?
Water! This is why ice floats.
150
Brass gets discoloured in air because of the presence of which of the following gases in air?
Oxygen
150
How do you determine the age of a tree?
Count its growth rings
200
Washing soda is the common name for
Sodium bicarbonate
200
True or false: The Eiffel Tower is taller in summer than it is in winter.
True
200
What is the only letter that doesn't appear in the periodic table?
J or Q
200
Which of the following is a protein?
1)Natural rubber
2)Starch
3)Cellulose
4)None of these
None of these
200
What is the study of fungi called?
Mycology
200
The biuret test tests for the presence of these biological molecules.
proteins
200
What is the relative mass of an electron?
0 or 1/1840 or negligible
200
When a material goes from a solid to a gas, without becoming a liquid, this is known as?
Sublimation
200
Alfred Nobel, the creator of the Nobel Prize, was most famous for which invention?
Dynamite
200
Roughly how long does it take for the sun’s light to reach Earth?
8 mins 20 sec
300
Which gas released as flatulence from livestock like cattle (cows).
methane
300
Which one of these elements is NOT named after a place?
1. Californium 2. Seaborgium
3. Berkelium 4. Polonium
Seaborgium
300
What do you call an animal that eats a variety of other organisms, including plants, animals and fungi?
omnivore
300
Chlorophyll is a naturally occurring chelate compound in which central metal is ...
Magnesium
300
How many bones do sharks have?
0
350
What is the scientific name of the material commonly called 'fool's gold'?
Iron pyrite crystals.
350
Many chemical elements are named after places, but only one country takes its name from a chemical element.
Argentina.
350
In the late 1800s, workers in match factories were exposed to a dangerous chemical used in match production. Long-term exposure caused a condition known as “phossy jaw,” where the jawbone slowly died and glowed a pale green in the dark.
Name the dangerous chemical.
Phosphorus
350
Tetraethyl lead is used as
1)pain killer
2)fire extinguisher
3)mosquito repellent
4)petrol additive
petrol additive
350
What is the largest organ in the human body?
skin