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In a periodic table the basic character ...

In a periodic table the basic character of oxides

A

increases from left to right and decreases from up to bottom

B

decreases from right to left and increases from top to bottom

C

decreases from left to right and increases from top to bottom

D

decreases from left to right and increases from bottom to top

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2010-CHEMISTRY
  1. The molarity of a NaOH solution by dissolving 4g of it in 250 ml water...

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  2. If a species has 16 protons, 18 electrons and 16 neutrons, find the sp...

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  3. In a periodic table the basic character of oxides

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  4. Which one of the following contains P-O-P bond ?

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  5. Which of the following orders regarding ionization energy is correct ?

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  6. Which of the following statements regarding ozone is not correct ?

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  7. P(4)O(10) is the anhydride of

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  8. Which of the following metals has the largest abundance in the earth's...

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  9. Which of the following orbitals will have zero probability of finding ...

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  10. What type of orbital hybridisation is considered on P in PCl(5) ?

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  11. For which element the inertness of the electron pair will not be obser...

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  12. In which of the following molecules is hydrogen bridge bond present ?

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  13. When a manganous salt is fused with a mixture of KNO(3) and solid NaOH...

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  14. In hemoglobin the metal ion present is

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  15. Ortho-and para - hydrogens have

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  16. The bond order of CO molecule is

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  17. Vitamin C is

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  18. On mixing an alkane with chlorine and irradiating with ultra -violet l...

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  19. Keto-enol tautomerism is not observed in

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  20. What is obtained when nitrobenzene is treated sequentially with (i) NH...

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