Physical Property of Non-Metal - Hardness
Physical Property of Non-Metal - Hardness
Hardness
Hardness is defined as the property of material to resist deformation.
Hardness of Non- metals:
Non- metals are generally soft (eg: phosphorus and sulphur). Diamond is an exception. It is the hardest substance known. They can be easily broken. Their tensile strength is low.
Which of the following statements is true about non-metals? | |||
| Right Option : C | |||
| View Explanation |
Which of the following are correct : (a) Hardness is defined as the property of material to resist deformation. (b) Non- metals are generally soft e.g: phosphorus and sulphur. (c) Diamond is the hardest substance known. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct : (a) Hardness is defined as the property of material to resist deformation. (b) Phosphorous exist in gas form at room temperature. (c) Only one non-metal, diamond, is very hard. | |||
| Right Option : C | |||
| View Explanation | |||
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