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Annealing is...

Annealing is

A

Heating steel in nitrogen and cooling

B

Heating steel to bright redness and then cooling slowly

C

Heating steel to bright redness and then cooling slowly

D

Heating steel to high temperature and cooling suddenly by plunging in water

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The correct Answer is:
B
By definition.
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ERRORLESS-THE d-AND f- BLOCK ELEMENTS -NCERT BASED QUESTIONS (Compounds of Transitional Elements)
  1. The presence of Si in steel gives it

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  2. Which metal is used to make alloy steel for armour plates, safes and h...

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  3. Annealing is

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  4. Iron pipes lying under acidic soil are often attached to blocks of mag...

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  5. haemoglobin is a complex of

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  6. Light green crystals of ferrous sulphate lose water molecules and turn...

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  7. Dipping iron article into a strongly alkaline solution of sodium phosp...

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  8. On heating K4[Fe(CN)6] with conc. H2SO4 gives the gas

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  9. How H(2)S is liberated in laboratory

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  10. Iron is dropped in dil. HNO(3) , it gives

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  11. Steel becomes soft and pliable by

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  12. Pure conc. HNO(3) makes iron passive as the surface is covered with pr...

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  13. Red hot iron absorbs SO(2) giving the product

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  14. If steel is heated to a temperature well below red hot and is then coo...

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  15. Railway wagon axles are made by heating rods of iron embedded in charc...

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  16. Steel contains

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  17. The most convenient method to protect the bottom of the ship made of i...

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  18. When SCN^(-) is added to an aqueous solution containing Fe(NO(3))(3), ...

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  19. The protection of steel by chrome plating is due to

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  20. KI and CuSO4 solution when mixed give .

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