Exceptions in Physical Properties

Q.

Which of the following metals can be cut with a knife?

1. Aluminium

2. Iron

3. Lithium

4. Gold

Q.

Mercury is a non-metal which is liquid at room temperature.

1. False

2. True

Q.

Which of the following non metal has a shining surface?

1. Iodine

2. Boron

3. Nitogen

4. Potassium

Q.

Which non metal has a shining surface?

1. Phosphorus

2. Iodine

3. Sulphur

4. Chlorine

Q.

Which of these metals exist as liquid at room temperature?

1. Caesium

2. Mercury

3. Sodium

4. Copper

Q.

State whether the following statement is true or false.

"It is observed that Ga and Cs will melt when kept on the palm. Thus, they are non-metals."

1. True

2. False

Q. Which of the following is a non-metal but is lustrous?

1. Fluorine
2. Iodine
3. Mercury
4. Carbon

Q. Can you guess the metal from the given options that can melt when held in your hands?

1. Mercury
2. Iron
3. Gallium
4. Ice

Q. Given below is a table containing a few metals and nonmetals with exceptional properties. Fill the dark spaces by identifying X, Y and Z in the table.

1. X - Gallium (Ga); Y - Metal; Z - Lustrous
2. X - Gallium (Ga); Y - Metal; Z - Sonorous
3. X - Carbon (C); Y - Non-metal; Z - Lustrous
4. X - Silver (Ag); Y - Metal; Z - Ductile

Q. Which of the following is a non-metal but conducts electricity which is actually a physical property of metals?

1. Mercury
2. Carbon
3. Iron
4. Gold