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प्रश्न
Identify the metallic oxide which is amphoteric in nature.
पर्याय
Calcium oxide
Barium oxide
Zinc oxide
Copper oxide
उत्तर
Zinc oxide
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संबंधित प्रश्न
Answer the following in respect of element `31/15 P `
Is it a metal or non - metal
Name any five periods properties.
Give the trend in metallic character:
down the group top to bottom.
Explain the following:
Metallic character of elements decreases from left to right in a period while it increases in moving down a group.
In Period 3, the most metallic element is ______.
Mg2+, Cu2+, Na1+, H1+ (In the order of preferential discharge at the cathode)
For the main group of the periodic table, the metallic properties of the elements vary approximately with their position as shown in the table.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| H | He | ||||||
| A | B | ||||||
| C | D |
Will the most metallic element be found at A,B,C or D ?
Copy and complete the following sentence choosing the correct word or words from those given below, at the end of the sentence:
The element at the bottom of a group would be expected to show ______ metallic character than the element at the top.
Metals are good ______ because they are electron ______.
Arrange:
Be, Li, C, B, N, O, F (in increasing metallic character).
