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Give reasons: Why is HCl not used to aci...

Give reasons: Why is HCl not used to acidify a permanganate solution in volumetric estimation of `Fe^(2+)` or `C_2O_4^(2-)`?

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ASSAM ACADEMIC CENTRE-SURFACE CHEMISTRY-Example
  1. What are alloys? Name the metals used for the formation of bronze.

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  2. How would you account for the following? The transition metal compound...

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  3. Give reasons: Why is HCl not used to acidify a permanganate solution i...

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  4. Give one example of the following: Ionisation isomerism.

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  5. Give one example each of the following: Geometrical isomerism.

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  6. Using valence bond theory, show that [Ni(CN)4]^(2-) complex is diamagn...

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  7. Explain why: Phenols are acidic in nature.

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  8. Explain : Ethers have lower boiling points than alcohols.

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  9. Explain why: Propan-2-ol is more basic than propan-1-ol.

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  10. Complete the following reactions: CH3 - CH = CH2 overset(H^+//H2O) rar...

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  11. Complete the following reactions: CH3 - CH2-O-CH3 + HI rarr? + ? (not ...

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  12. Answer the following: arrange in increasing order of basic strength. C...

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  13. Kb value of aniline is less than that of methyl amine. Why?

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  14. Identify A and B : CH3CH2Br overset(KCN) rarr A overset(LiAlH4) rarr B

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  15. Identify C and D : C6H5NO2 overset(Fe+HCl) rarr C overset(NaNO2) under...

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  16. For one mole close packed spheres, how many octahedral and tetrahedral...

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  17. Atoms of element X form hcp lattice and those of element Y form occupy...

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  18. What is an ideal solution?

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  19. Urea [NH2)2CO] forms an ideal solution in water. Calculate the vapour ...

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  20. The vapour pressures fo pure liquids A and B are 450 mm Hg and 700 mm ...

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