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SCIENCE TRIVIA VIII

71) Which of the following is NOT classified on the periodic table as a post-transition metal?


Magnesium, the eighth most abundant element in the earth's crust, is classified as an alkaline earth metal.

72) What is Jupiter's largest moon?


Ganymede is the largest moon in our solar system, and the only moon known to have a magnetic field.

73) The conversion of ethanol to ethanoic acid is an example of what?


Since the conversion of ethanol to ethanoic acid involves the addition of oxygen to ethanol, it is an oxidation reaction.

74) What is the hottest planet in our solar system?


The hottest planet in our solar system is Venus. When it comes to temperature, distance from the Sun matters, but it takes a backseat to wrapping a planet in a atmospheric blanket of carbon dioxide.

75) What is the thinnest layer of the Earth?


the crust is the thinnest layer of the Earth, amounting to less than 1% of our planet's volume.

76) How are U-shaped valleys formed?


U-shaped or glaciated valleys are formed when a glacier travels across and down a slope, carving the valley by the action of scouring.

77) Which of the following is NOT generally considered a greenhouse gas?


While oxygen (o2) is the second most abundant gas in our atmosphere, it does not absorb thermal infrared radiation.

78) What is the most abundant element in the Martian atmosphere?


The Martian atmosphere consists of approximately 96% carbon dioxide, 1.9% argon, 1.9% nitrogen, and traces of free oxygen, carbon monoxide, water and methane.

79) Which type of chemical bond is strongest?


The strength of chemical bonds varies considerably; there are "strong bonds" such as covalent or ionic bonds and "weak bonds" such as Dipole-dipole interaction, the London dispersion force and hydrogen bonding.

80) Which of the following metals does not react with hydrochloric acid?


Copper has higher reduction potential (more positive) than hydrogen and therefore does not react with HCl acid.


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