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Which is not the way to purify metal . D...

Which is not the way to purify metal . Distillation, Liquification, Electrolysis, Leaching , Calcination.

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JEE MAINS PREVIOUS YEAR-JEE MAIN 2022-Question
  1. 10 mL of Fe^(2+) ion react completely with 20 mL of 0.02 molar acidifi...

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  3. Which is not the way to purify metal . Distillation, Liquification, El...

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  4. In D-glucose find the molality of Glucose if percentage of carbon is 1...

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  5. Elevation in boiling point of non volatile solute A and B are same. Ma...

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  6. The name of Oxyacid of Phosphorus having maximum number of Oxygen ?

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  7. Oxidation number change in Carbon, when oxalic acid is reacts with aci...

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  8. Select the species which has S-O-S bond

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  9. Statement -1 : H2O has more density at 298K than D2O Statement -2 : H...

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  10. Total number of Mn=O bonds in Mn2O7 ?

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  11. Assertion: The energy of electron in 2s orbital of He^(+) is more than...

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  12. The number of basic oxides among the following is : NO2, N2O, NO, Li2O...

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  13. Oxidation number of Tl in TlI3 ?

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  14. Find the solubility product of CaF2 , if solubility of CaF2 is 2.34 g/...

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  15. 10 mL of Fe^(2+) ion react completely with 20 mL of 0.02 molar acidifi...

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  16. A radioactive substance takes 30 years to be reduced to 1/(16)th of it...

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  17. Assertion : Boron is unable to form BF6^(3-). Reason : Boron is very...

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  18. Which of the following species is formed when KMnO4 reacts with S2O3^(...

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  19. 100 ml of 0.1M H2SO4 is reacted with 50 ml of 0.1M of NaOH, What is th...

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