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Ozone gives brown colour with...

Ozone gives brown colour with

A

benzidine paper

B

lead acetate paper

C

starch iodide paper

D

tetramethyl base.

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The correct Answer is:
A
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MODERN PUBLICATION-CHEMISTRY OF P - BLOCK ELEMENTS-Multiple Choice Questions (Level - II) (Comprehensive Qs)
  1. Pure nitrogen gas is obtained from

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  2. Calcium phosphide gets hydrolysed and give

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  3. Ozone gives brown colour with

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  4. The number of S-S bonds in sulphur trioxide trimer (S(3)O(9)) is

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  5. For H(3)PO(3) and H(3)PO(4) the correct choice is

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  6. Which of the following species has a linear shape ?

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  7. Among the following the pair in which the two species are not iso - st...

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  8. The correct order of acidic nature of oxides is in the order

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  9. Na(2)S(2)O(3) is oxidised by I(2) to

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  10. Which one statement about sulphur dioxide gas is incorrect?

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  11. The correct order of increasing bond angles in the following species i...

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  12. The paramagnetic oxides of nitrogen are

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  13. The least stable hydride of 15th group elements is

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  14. When Br(2) is treated with aqueous solutions of NaF, NaCl and NaI sepa...

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  15. Which of the following statements is not valid for oxoacids of phospho...

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  16. When Cl(2) reacts with hot and concentrated soldium, the oxidation num...

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  17. Excess of PCl(5) reacts with conc. H(2)SO(4) giving

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  18. The oxoacid of sulphur that contains a lone pair of electrons on sulph...

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  19. The correct order of acidic stength is :

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  20. The number of sigma - bonds in P4O(10) is :

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