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प्रश्न
Match the Columns:
| Column A | Column B | ||
| (a) | Metals | (i) | Non-Reactive |
| (b) | Molecules | (ii) | Brittle |
| (c) | Non-Metals | (iii) | Lustrous |
| (d) | Noble Gases | (iv) | Smallest unit of Compound |
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उत्तर
| Column A | Column B | ||
| (a) | Metals | (iii) | Lustrous |
| (b) | Molecules | (iv) | Smallest unit of Compound |
| (c) | Non-Metals | (ii) | Brittle |
| (d) | Noble Gases | (i) | Non-Reactive |
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संबंधित प्रश्न
Give one example for the following type of mixtures
solid-solid homogenous mixture.
Fill in the blank
Use of a ................. to separate the components of a mixture of solids is based on the difference in the size of the components
State the number of atoms of CaCO3
Answer the following question:
What do you understand by the statement: ‘metals are ductile and malleable’?
Indicate whether the following statement is true or false:
Metals reflect light and are good conductors of electricity
Tick (√) the correct alternative from the choice given for the following statement
The hardest naturally occurring substance
Select the correct answer from the choice given below.
The element which is malleable
Give a reason for the following statement :
The filter paper made into a cone & placed in a funnel for filtering out the solid particles in a solid-liquid mixture should be moistened before placing it.
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which is required for combustion.
Complete the table:
| Element | Latin Name | Symbol |
| Mercury | ______ | Hg |
| Lead | Plumbum | ______ |
| Iron | ______ | Fe |
| Potassium | Kalium | ______ |
