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Be and Al exhibit diagonal relationship....

Be and Al exhibit diagonal relationship. Which of the following statements about then is//are not true ?
(i) Both react with HCl to liberate `H_(2)`
(ii) They are made passive by `HNO_(3)`
(iii) Their carbides gives acetylene on treatment with water
(iv) Their oxides are amphoteric

A

(iii) and (iv)

B

(i) and (iii)

C

(i) only

D

(iii) only

Text Solution

Verified by Experts

The correct Answer is:
D
The carbides of .Be. and .Al. liberates `CH_(4)` on treatment with water
`Be_(2)C+4H_(2)O to 2Be (OH)_(2)+CH_(4)`,
`Al_(4)C_(3)+6H_(2)Oto 2Al_(2)O_(3) +3CH_(4)`
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AAKASH SERIES-ALKALINE EARTH METALS-Practice sheet (Level-II(Advanced))
  1. Be and Al exhibit many properties which are similar, but the two eleme...

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  2. Be and Al exhibit diagonal relationship. Which of the following statem...

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  3. Complete the following equations and identify the products A,B and C. ...

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  4. The decomposition temperature is lowest for

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  5. A burning magnesium ribbon will continue to burn in

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  6. Which of the following represents the composition of carnallite minera...

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  7. Melting point of calcium halides decreases in the order

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  8. A major constituent of portland cement is?

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  9. In alkaline earth metals, the electrons are more firmly held to the nu...

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  10. The density of calcium is less than that of magnesium because.

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  11. "Be" differs from rest of the elements of the IIA group due to

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  12. Which of the following compounds ae correctly related

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  13. Which of the following is/are corret statements ?

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  14. The incorrect statements (S) is/are

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  15. Select the incorrect statement about Barium

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  16. Group-II elements react with water evolving hydrogen. This reactivity ...

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  17. Group-II elements react with water evolving hydrogen. This reactivity ...

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  18. Group-II elements react with water evolving hydrogen. This reactivity ...

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  19. BeO and Be(OH)(2) are amphoteric while the oxides and hydroxides of ot...

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  20. BeO and Be(OH)(2) are amphoteric while the oxides and hydroxides of ot...

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