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प्रश्न
Name the gas used in:
Bright colour advertising light works
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उत्तर
Neon
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संबंधित प्रश्न
Name two elements of each group.
Name the method by which alkali metals can be extracted.
Write the reactions of the first three alkaline earth metals with dilute hydrochloric acid.
Comment on the (i) reactivity (ii) colour (iii) physical state of group 17 elements.
Name the gas used in:
Filling balloons
Give reason:
Alkali metals and halogens do not occur free in nature.
Write a short note on the following type of element –
alkali metals
Write a short note on the following type of element –
halogens
Give a reason for the following:
Group 1 [I – A] elements are called alkali metals.
Match the elements of List – I with their type from List – II.
| List – I | List – II |
| 1. Highly reactive, univalent metals | A: Halogens |
| 2. Highly reactive, univalent non-metals | B: Transition elements |
| 3. Unreactive, inert elements | C: Alkali metals |
| 4. Elements of group 3 to 12 [IB to VII B and VIII] | D: Lanthanide series |
| 5. Radioactive elements | E: Noble gases |
| F: Actinide series |
