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The flux used in soldering galvanised ir...

The flux used in soldering galvanised iron is:

A

`ZnO`

B

`ZnCl_2`

C

`ZnSO_4`

D

None

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The correct Answer is:
B
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MBD PUBLICATION-TRANSITION METALS (d-BLOCK ELEMENTS)-QUESTION BANK
  1. Granulated Zn is obtained by:

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  2. Roasting of HgS in air produces:

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  3. The flux used in soldering galvanised iron is:

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  4. Which metal is used in making cathode containers of dry cell?

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  5. Which statement is correct ?

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  6. Usefull lanthanide member is:

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  7. The lanthanide contraction is responsible for the fact that:

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  8. Which of the following elements is responsible for oxidation for water...

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  9. The metal ion which does not from coloured compound is:

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  10. Which of the following icons is coloured?

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  11. Among the following the compound that is both paramagnetic and coloure...

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  12. Which of the following compounds is expected to be coloured ?

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  13. Which of the following elements shows maximum number of different oxid...

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  14. Which one of the following ionic species will impart colour to an aque...

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  15. Which compound does not dissolve in hot, dilute HNO3 ?

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  16. An aqueous solution of FeSO4*Al2(SO4) and chrome alum is heated with e...

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  17. Ammonium dichromate is used in some fireworks. The green coloured powd...

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  18. Muntz metal is an alloy of:

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  19. A substance which turns blue when treated with water is:

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  20. Which is used as substitute for platinum in jewellery?

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