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Mg and Zn have following resemblance :...

Mg and Zn have following resemblance :

A

MgO and ZnO are amphoteric

B

`MgCO_(3) ZnCO_(3)` both on heaating give corresponding oxide

C

both are used as electrons

D

both are used to prevent corrosion

Text Solution

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The correct Answer is:
B, C, D
B) `MgCO_(3) rarr MgO + CO_(2)`
C) Mg and Zn are used as electrodes
D) Both Mg and Zn used to prevend corrosion as they form oxide layer
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AAKASH SERIES-ALKALINE EARTH METALS-PRACTICE SHEET LEVEL II (STRAIGHT OBJECTIVE TYPE QUESTIONS)
  1. BeCI(2)+LiAIH(4)rarrX-LiCI +AICI(3)

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  2. The order of thermal stability of carbonates of HA group is

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  3. A pair of substances which gives the same products on reaction with wa...

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  4. The high melting and high boiling element in IIA group elements is

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  5. Select the correct statement out of the following

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  6. Which of the following are inoic earbides ?

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  7. Which of the following pair of elements will give superoxides and pero...

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  8. Which of the following oxides have rock salt structure with coordinati...

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  9. Select the correct statement about harium :

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  10. Mg and Zn have following resemblance :

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  11. Quicklime and slaked lime are the cheapest and the most widely used ba...

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  12. Quicklime and slaked lime are the cheapest and the most widely used ba...

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  13. Magnesium is a valuable, light weight used as a structural mataerial a...

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  14. Magnesium is a valuable, light weight metal used as a structural mater...

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  15. Magnesium is a valuable, light weight metal used as a structural mater...

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  16. How many of the following metals can from peroxides Be, Mg, Ca, Sr, Ba

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  17. Among the following oxides, how many have NaCi type structure BeO, MgO...

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  18. Number of water molecules present in the hydrated state of MgSO(4)

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  19. Number of water molecule in 2 mole of plaster of pairs

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  20. Number of moles of water required for the hydroysis of 1 mole of Be(2)...

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