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Red hot steel rod on suddenly immersing ...

Red hot steel rod on suddenly immersing in water becomes.

A

Soft and malleable

B

Hard and brittle

C

Tough and ductlile

D

Fibrous

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The correct Answer is:
B
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MBD PUBLICATION-TRANSITION METALS (d-BLOCK ELEMENTS)-QUESTION BANK
  1. The impurity of sulphur makes the iron:

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  2. The axles are made by heating rods of iron embedded in charcoal powder...

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  3. Red hot steel rod on suddenly immersing in water becomes.

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  4. When steel is heated red hot and then slowly cooled, the process is kn...

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  5. The process of nitriding used in the treatment of steel is :

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  6. The process of heating of steel to temperature much below redness and ...

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  7. The process of heating of steel to temperature much below redness and ...

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  8. Rust is a mixture of :

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  9. The common oxidation state of the elements of lanthanide series is:

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  10. The tampering of steel makes it:

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  11. The element which acts as a good catalyst for several reactions has at...

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  12. Which one of the elements is a d-block element?

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  13. How many unpaired electrons are there in Ni^(2+) ion ?

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  14. The element which forms a coloured chloride is:

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  15. The elements which exhibit both vertical and horizontal similarities a...

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  16. Variable valency is a general feature of elements:

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  17. Which ion is not coloured:

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  18. The smelting of iron in a blas furnace involves all the steps except:

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  19. Which ion in aqueous medium has orange colour?

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  20. Acidified potassium permanganate solution is decolourised by

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