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प्रश्न
Match the following
| 1. | Galvanisation | Noble gas elements |
| 2. | Calcination | Coating with Zn |
| 3. | Redox reaction | Silver-tin amalgam |
| 4. | Dental filling | Alumino thermic process |
| 5. | Group 18 elements | Heating in the absence of air |
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उत्तर
| 1. | Galvanisation | Coating with Zn |
| 2. | Calcination | Heating in the absence of air |
| 3. | Redox reaction | Alumino thermic process |
| 4. | Dental filling | Silver-tin amalgam |
| 5. | Group 18 elements | Noble gas elements |
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संबंधित प्रश्न
Why do we classify elements?
The elements A, B and C belong to groups 1, 14, and 17 respectively of the periodic table.
(a) Which two elements will form a covalent compound?
(b) Which two elements will form an ionic compound?
Give a reason why elements need to be properly classified.
Example for liquid metal is ______.
Which of the following is a transition element?
The elements of group 16 are called ______
The element with atomic number 26 will be found in group ______
Which type of elements are poor conductors of heat and electricity?
Complete the following triads by inserting the missing elements.
Ca, ______, Ba
Justify. Element 'X' forms an oxide with the formula X2O3 which is a solid with a high melting point. ‘X’ would most likely be placed in the group of the Periodic Table as Al.
