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Water transported through lead pipes bec...

Water transported through lead pipes becomes poisonous due to the formation of

A

`Pb(OH)_(2)`

B

`PbO`

C

`PbO_(2)`

D

`Pb_(3)O_(4)`

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2007-CHEMISTRY
  1. IUPAC name of [Cr(NH(3))(5)CO(3)]Cl is

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  2. Which of the following compounds is not dissolved in dil. HNO(3)?

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  3. Water transported through lead pipes becomes poisonous due to the form...

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  4. Which of the following aqueous solution has the highest boiling point?

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  5. The X and Y of the reaction scheme C(6)H(5)CHOunderset(C(2)H(5)OH)ov...

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  6. Five most abundant element is the living cell are

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  7. Number of molecules in 7.0 gm of nitrogen gas is

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  8. Correct order of increasing ionic character is

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  9. Which of the following is not paramagnetic ?

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  10. Intense violet colouration was produced on addition of neutral ferric ...

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  11. In the reaction Z+CH(3)MgBroverset("ether")(to)"Intermediate"underse...

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  12. Which of the following contains cobalt?

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  13. The compound that is most reactive towards electrophilic nitration is

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  14. When phenol is treated with CHCl(3) and NaOH, the major product formed...

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  15. Rates of diffusion of H(2),D(2),HD and He gases will be in the order:

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  16. Which of the following will have the highest coagulating power for As(...

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  17. CH(2)CH(2)CH(2)CH(3)overset("catalyst")(to)CH(3)-underset(CH(3))unders...

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  18. C(6)H(5)N(2)^(+)Cloverset(X,Y)(to)C(6)H(5)Cl+N(2) X and Y in the abo...

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  19. In the reaction C(6)H(5)CHO+HCHOoverset(NaOH)(to)X+Y The compounds...

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  20. The polymeric material produced in the condensation reaction between H...

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