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Hydrogen gas is liberated when aluminium...

Hydrogen gas is liberated when aluminium is treated with
A) Air
B) Dilute `HCI (or) H_(2)SO_(4)`
C) `NaOH` (or) `KOH`
D) conc. `HNO_(2)` 

A

All the above

B

only A, B and C

C

Only B, C and D

D

only B and C

Text Solution

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The correct Answer is:
D
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AAKASH SERIES-ELEMENTS OF BORON FAMILY-OBJECTIVE EXERCISE - 2
  1. The correct increasing order of the stability of Al, Ga^(+), In^(+), T...

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  2. In the electrolysis of alumina using cryolite, the reaction that takes...

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  3. Hydrogen gas is liberated when aluminium is treated with A) Air B)...

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  4. Which of the following is weakest Lewis acid ?

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

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

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  7. Strongest oxidant among the following is

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

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

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  10. Borax is chemically

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

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  12. Which of the following is a correct match?

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

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

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

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

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

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  18. Which of the following statements is correct?

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  19. Slippery nature of orthoboric acid is due to

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

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