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Why is neon used in illuminating warning...

Why is neon used in illuminating warning signal. Why ?

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Neon lights are visible from long distances even in fog and mist and hence neon is generally used for warning signals.
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PRADEEP-P-BLOCK ELEMENTS -CONCEPTUAL QUESTION
  1. Explain bleaching action of chlorine. Or Cl(2) acts as a bleaching a...

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  2. What happen when Cl(2) is passed through a hot concentrated solution o...

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  3. Arrange HClO, HBrO, HIO decreasing order of acidic strength.

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  4. Arrange HClO(4), HClO(3), HClO(2), HClO in order of (i) decreasing aci...

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  5. The acidic strength decreases in the order : HCl gt H(2)S gt PH(3). Ex...

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  6. Give appropriate reason for each of the following : Perchloric acid ...

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  7. How are interhalogen compounds formed? What general compositions can b...

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  8. Interhalogen compounds are more reactive than halogens. Why ?

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  9. Why does fluorine not play the role of a central atom in interhalogen ...

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  10. ClF(3) molecule has a bent T-shaped structure and not a trigonal plana...

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  11. Draw the structure of BrF(5).

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  12. Arrange the following : Xe, He, Kr, Rn, Ne in decreasing order of thei...

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  13. Noble gases are mostly inert. Assign reasons.

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  14. What prompted Bartlett to the discovery of noble gases compounds ?

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  15. Which reaction was used by Bartlett to prepare the first noble gas com...

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  16. The majority of noble gas compounds are those of xenon. Explain.

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  17. No chemical compound of helium is known Or Helium forms no real chem...

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  18. Give reasons : (i) Xenon does not form fluorides such as XeF(3) and ...

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  19. XeF(2) has a straight linear structure and not a bent angular structur...

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  20. Why is neon used in illuminating warning signal. Why ?

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