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X and Y are two metals. When burnt in ai...

X and Y are two metals. When burnt in air, X forms only oxide while Y forms oxide and nitride. The metals X and Y may be:

A

Ca and Mg

B

Na and Mg

C

Li and Na

D

Na and K

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The correct Answer is:
B
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VK JAISWAL ENGLISH-s-BLOCK ELEMENTS-Level 2
  1. Which metal bicarbonates does not exist in solid state? (i)LiHCO(3) ...

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  2. The incorrect order of solubility in water is:

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  3. Which metal bicarbonates does not exist in solid state? (i)LiHCO(3) ...

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  4. Which one of the following order is correct ?

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  5. Metal M+"air" overset(delta)(to)Aoverset(H(2)O)(to)Boverset(HCl)(to) W...

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  6. X and Y are two metals. When burnt in air, X forms only oxide while Y ...

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  7. Which of the following is an incorrect statement?

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  8. Which of the following statement is incorrect?

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  9. Thermal stability of MCO(3) is in order:

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  10. Select incorrect statement about alkaline earth metals:

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  11. In polymeric (BeCl(2))(n), there are:

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  12. A metal is burnt in air and the ash on moistening smells of NH(2).The...

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  13. Which is not obtained when metal carbides react with H(2)O ?

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  14. Choose incorrect statement:

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  15. IIA (alkaline earth metals) and IIB (zinc family) resemble:

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  16. Select the correct statement:

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  17. Calcium imide on hydrolysis will give gas (B) which on oxidation by bl...

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  18. The compound A on heating gives a colourless gas and a residue that ...

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  19. Which of the following statement is false?

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  20. The more commonly used baking powder contains about 30%NaHCO(3), 20%Na...

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