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Write method of preparation of H2SO4 aci...

Write method of preparation of `H_2SO_4` acid by Contact process.

A

to detect colloidal impurity

B

to remove moisture

C

to remove dust particles

D

to remove arsenic impurity.

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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
  1. The pair in which phosphorus atoms have a formal oxidation state of +3...

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  2. Na2S2O3 is reduced by I2 to :

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  3. Write method of preparation of H2SO4 acid by Contact process.

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  4. Sulphur trioxide gas when dissolved in H2SO4, the product obtained is

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  5. Which of the following contains P - O - P bond ?

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  6. NO2 is not obtained on heating

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  7. The order of basic strength of hydrides of the group -15 elements is ...

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  8. Which of the following is most easily hydrolysed amongst the following...

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  9. Select the wrong statement:

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  10. The graph of inverse trigonometric function can be obtained from the g...

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  11. H2S is a gas while H2O is liquid at room temperature·? Why ?

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  12. Fill in the blanks:

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  13. The same quantity of electrical charge that deposited 0.583g of silver...

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  14. For the function f(x)=x cos ""1/x, x ge 1 which one of the following i...

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  15. The statement that is not correct is

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  16. Which of the following compounds is most acidic

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  17. Which one of the following statements is incorrect?

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  18. Phenol reacts with bromine in CS2, to give:

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  19. Electronic configuration of only one p-block element is exceptional. O...

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  20. Which among the following group 15 element forms most stable pentavale...

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