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WorksheetsMetals Nonmetals And Metalloids
Total questions: 15
Worksheet time: 5mins
Which of the following is not a property of metals
Metals are generally hard solids
Metals have metallic lustre
Metals have low melting points
Metals are sonorous
Which of the following metal is the best conductor of electricity?
Silver
Bromine
Sulphur
Iodine
Potassium has the melting point
774 degree celsius
64 degree celsius
94 degree celsius
81 degree celsius
Can you draw a wire from a piece of wood or coal ?
No, because they are not flexible and brittle
Yes, because they are flexible and brittle
Which of the following nonmetal has a high density
Diamond
Bromine
Sulphur
Phosphorus
There are ______ solids in nonmetals
11
1
12
14
These are also called semimetals
Metalloids
Metals
Nonmetals
None of the above
Magnesium is used in (a) and flash bulb
This is a metal used to make utensils
Aluminium
Copper
Bromine
Zinc
The destruction of a metal or an alloy by a chemical reaction is called _________.
Rusting
rust
Corrosion
Galvanising
Choose any the ways to prevent corrosion
Leave in open air
Painting
Let it rust
Tinning
The formulae of Rust is
Fe2O3xH2p
Fe2O3xH2O
Fe2K3xH2
Fe3O3xH2
The chemical reaction that takes place in rusting
Iron + Oxygen + water = rust
Iron + Oxygen = rust
Iron + water = rust
Iron + CO2 + water = rust
What does xH2O mean in the formulae of rusting
Number of Oxygen atoms is uncertain
Number of Hydrogen atoms is uncertain
Number of water atoms is uncertain
Number of Nitrogen atoms is uncertain
Silver is used in these medicines
Ayurvedic medicines
Capsule medicines
Yunani medicines
Topical medicines
