What do you call the molten material found on the earth’s surface?

What is the most abundant element in the Universe (75%)?

How many people have walked on the moon?

• 24
• 12
• 8
• 4

In what era did the dinosaurs live?

• Cenozoic
• Mesozoic
• Precambrian
• Paleozoic

Which of the following is not a desert?

• Sahara
• Gobi
• Antarctica
• None of the above

What is the hottest planet in the solar system?

• Mercury
• Venus
• Earth
• Mars

_______ is the only person who has been awarded with two unshared Nobel Prizes?

• Frederick Sanger
• Linus Pauling
• Marie Curie
• None of the above
• (Chemistry 1854, Peace 1962)

Which of the following is not a newly discovered element?

• Nihonium
• Moscovium
• Tenessine
• Darmstadtium
• (discovered on November 9, 1994)

What is the coordination number of NaCl in crystal structure?

• 4
• 1
• 8
• 6

What is the molecular geometry of Arsenic Pentafluoride?

• Octahedron
• tetrahedron
• Trigonal bipyramid
• Square Pyramid