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Aluminium reacts with concentrated H(2)S...

Aluminium reacts with concentrated `H_(2)SO_(4)` to liberate `SO_(2)` gas. In this process, the clement in `H_(2)SO_(4)` that has changed its oxidation state is 

A

H

B

S

C

O

D

none

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-ELEMENTS OF BORON FAMILY-OBJECTIVE EXERCISE - 2
  1. Hydrogen gas is liberated when aluminium is treated with A) Air B)...

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  2. Which of the following is weakest Lewis acid ?

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  3. Aluminium reacts with concentrated H(2)SO(4) to liberate SO(2) gas. In...

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  4. In the reaction between boron and sodium hydroxide to liberate hydroge...

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  5. Strongest oxidant among the following is

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  6. Electronegativity of aluminium is 1.5. Electro negativity of thallium ...

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  7. The products formed when boron trichloride is reduced with lithium alu...

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  8. Borax is chemically

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  9. NA(2)B(4)O(7).10H(2)O can also be represented as

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  10. Which of the following is a correct match?

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  11. BCI(3) does not exist as dimer but BH, exist as dimer because

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  12. What is Z in the following reactions? BCl(3)+H(2)underset(450^(@)C)o...

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  13. Observe the following statements : 1) H(3)BO is used as antiseptic ...

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  14. Which of the following statements are correct? i) Boron reacts with ...

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  15. Diborane reacts with HCl in the present of AlCl(3) and liberates

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  16. Which of the following statements is correct?

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  17. Slippery nature of orthoboric acid is due to

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  18. The maximum number of atoms present in the same plane in diborane mole...

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  19. The colour developed for Co^(2+) basic radical in borax bead test is

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  20. Orthoboric acid on heating above 370K gives

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