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Aluminium is more reactive than iron. Bu...

Aluminium is more reactive than iron. But aluminium is less easily corroded than iron because.

A

Aliminium is a noble metal

B

oxygen forms a protective oxide layer

C

Iron undergoes reaction easily with water

D

Iron forms mono and divalent ions

Text Solution

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The correct Answer is:
B
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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R ). Mark the correct choice as: Assertion : Aluminium is more reactive than iron. Reason : Its corrosion is less than that of iron.

ERRORLESS -S AND P BLOCK ELEMENTS-Ordinary thinking (Boron family)
  1. Moissan boron is

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  2. Which one of the following exists in the oxidation state other than +3...

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  3. Aluminium is more reactive than iron. But aluminium is less easily cor...

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  4. Aluminium vessels should not be washed with materials containing washi...

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  5. Aluminium oxide is not reduced by chemical reactions since

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  6. In Goldschmidt aluminothermic process, thermite mixture contains:

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  7. Which metal has a greater tendency to form metal oxide

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  8. In which of the following molecules is hydrogen bridge bond present ?

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  9. In borax the number of B-O-B links and B-OH bond present are, respecti...

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  10. Which statement is incorrect

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  11. Correct formula of aluminium nitride is

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  12. Which metal burn in air at high temperature with the evolution of much...

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  13. Ga is below Al in the periodic table, but atomic radius of Ga is less ...

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  14. Crystalline metal can be transformed into metallic glass by

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  15. An element A dissolves both in acid and alkali. It is an example of

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  16. Which one of the following is correct statement ?

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  17. In the purification of bauxite by Hall's process

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  18. Assertion: Boron is metalloid. Reason : Boron shows metallic nature...

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  19. These questions consist of two statements each, printed as Assertion a...

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  20. Which one of following elements is unable to from MF(6)^(3-) ion?

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