Science Quiz, KBC Quiz, KBC Questions, Multiple Choice Question Answers

Question: Elements in the modern periodic table are arranged on the basis of their...?

1. Atomic Mass
   
2. Atomic Number
   
3. Boiling Point
   
4. Chemical Symbols alphabetically
   

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Question: Elements in the same group have similar...?

1. Atomic masses
   
2. Chemical properties
   
3. Atomic radii
   
4. Atomic numbers
   

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Question: The horizontal rows in a periodic table are called...?

1. Groups
   
2. Lanthanides
   
3. Periods
   
4. Atomic Structures
   

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Question: The law that "the properties of elements are periodic functions of their atomic numbers" was given by...?

1. Linus Pauling
   
2. Mendeleev
   
3. Heisenberg
   
4. Moseley
   

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Question: The first element in the modern periodic table is...?

1. Hydrogen
   
2. Lithium
   
3. Oxygen
   
4. Helium
   

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Question: With which metal does oxygen combine to form rust?

1. Iron
   
2. Platinum
   
3. Gold
   
4. Silver
   

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Oxygen combines with iron to form rust.

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Question: Rust on iron is basically...?

1. An oxide
   
2. A nitride
   
3. A chloride
   
4. A sulphide
   

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Rust on iron is basically an oxide.

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Question: Which of the following metals is often found in the pure state?

1. Iron
   
2. Aluminum
   
3. Gold
   
4. Magnesium
   

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Gold is often found in the pure state.

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Question: Metals that can be easily beaten into sheets are known as _______ metals.

1. Beatable
   
2. Polymer
   
3. Malleable
   
4. Ductile
   

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Metals that can be easily beaten into sheets are known as malleable metals.

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Question: Rocks that are rich in metals are known as...?

1. Metalloids
   
2. Allotropes
   
3. Slag
   
4. Ores
   

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Correct Answer
Rocks that are rich in metals are known as ores.

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