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How many of the following show borax bea...

How many of the following show borax bead test B, Be, Mg, Cu, Fe, Cr, Co, Mn, Ni

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The correct Answer is:
6
Transition metal ions [Cr, Mn, Fe, Co, Ni, Cu]
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AAKASH SERIES-ELEMENTS OF BORON FAMILY-ADDITIONAL PRACTICE EXERCISE (LEVEL - II LECTURE SHEET (ADVANCED))
  1. Electronic structure acquired by compounds of IIIA group elements in b...

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  2. Thallous chlorie is more stable than thallic chloride because of

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  3. Element with gaint co - valent structure is

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  4. Which of the following is used in high temperature thermometry ?

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  5. The maximum co - valancy of aluminium is '6' where as that of boron is...

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  6. Which element reacts with acids as well as alkalies.

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  7. Which statements are correct. (1) I.P of 'Ga' is greater than 'Al'...

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  8. The electrical conductivity of aluminium is twice that of copper on th...

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  9. 'Al' and its alloy can be given shapes of

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  10. Which of the following minerals contain aluminium ?

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  11. Aluminium becomes passive in

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  12. The chief impurity not present in bauxite is

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  13. AlCl(3) is an electron deficient compound but AlF(3) is due to

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  14. Which of the following element donot form carbide

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  15. Al(2)(SO(4))(3)+NH(4)OH rarr X,X is

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  16. An inorganic compound (A) shows the following reactions. It is white s...

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  17. An inorganic compound (A) shows the following reactions. It is white s...

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  18. {:(,"Column - I",,"Column - II"),((A),"Corundum",(P),Ca(a)B(6)O(11).5H...

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  19. How many of the following show borax bead test B, Be, Mg, Cu, Fe, Cr, ...

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  20. Al[BH(4)](3) contains how many 3 centered -2e^(-) bonds.

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