Science Quiz 52: Chemistry Quiz

Science Quiz 52: Chemistry Quiz

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1. A white alloy of nickel, zinc, and copper is

German silver
Alumel
Rose metal
Chinese silver

2. Name the gas that causes explosions in coal mines

Hydrogen sulfide
Carbon dioxide
Carbon monoxide
Methane

3. Name the only element that doesnot have any neutrons?

Carbon
Hydrogen
Helium
Calcium

4. The synthetic chemical element with the atomic number 96 is?

Uranium
Polonium
Radium
Curium

5. Uranium undergo 14 radioactive decays and eventually become a stable isotope of

Lead
Radium
Thorium
Polonium

6. What is called the "Philosopher's Wool"?

Zinc oxide
Zinc nitrate
Zine bromide
Zinc chloride

7. What is the chemical name of marble?

Calcium carbonate
Magnesium oxide
Calcium oxide
Sodium hydroxide

8. Which company in 1973 introduced the use of LCD display in calculators?

Sharp
Canon
Casio
Hitachi

9. Which one of the following does not react vigorously with water?

Potassium
Sodium
Lithium
Calcium

10. Which one of the following is NOT a metal used to make German Silver?

Zinc Oxide
Nickel
Copper
Silver