Advertisements
Advertisements
Question
Give four differences between metals and non-metals with reference to their:
- Melting point and boiling point
- The conductivity of heat and electricity
- Malleability
- Solubility
Solution
| Metals | Non-Metals | |
| Melting point and boiling point | Metals have both high melting points and boiling points. | Non-metals have both low melting and low boiling point. |
| Conductivity of heat and electricity | They are good conductors of heat and electricity. | Nofi-metals are bad conductors of heat and electricity |
| Malleability | Metals are usually malleable. | All non-metals are non-malleable. |
| Solubility | Metals are generally insoluble in water and other organic solvents. | They are both soluble and insoluble |
APPEARS IN
RELATED QUESTIONS
Write any three differences between metals and non-metals with respect to their physical properties.
Which of the following can be beaten into thin sheets?
Can you store lemon pickle in an aluminium utensil? Explain.
One day Reeta went to a jeweller’s shop with her mother. Her mother gave an old gold jewellery to the goldsmith to polish. Next day when they brought the jewellery back, they found that there was a slight loss in its weight. Can you suggest a reason for the loss in weight?
State any five physical properties of metals.
(a) Give the names and formulae of one metal chloride and one non-metal chloride.
(b) State an important property in which these metal chloride and non-metal chloride differ.
(c) Why do they differ in this property?
Tick (√) the most appropriate answer.
Copper metal is used in :
Name a non-metal which is liquid form at room temperature.
What is an alloy?
State the composition and two uses of given alloy:
Brass
Name:
a non-metal which is ductile
Name:
two metallic oxides which are acidic
Give the balanced reactions for the following:
Red hot iron reacts with steam
Complete the table.
| Property of metal | Use in everyday life |
| i. Ductility | |
| ii. Malleability | |
| iii. Conduction of heat | |
| iv. Conduction of electricity | |
| v. Sonority |
Which metal occurs as a carbonate also gives the name of their respective ore.
Which metal occurs as an oxide also gives the name of their respective ore.
Complete the statement given below, by filling in the blank with the correct word:
A non-metal that leaves a mark on paper _______
The non-metal which conducts electric current is
