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when a mixture of iron powder and su...

when a mixture of iron powder and sulphur powder is heated strongly to form iron sulphide , then heat energy is :

A

released

B

first absorbed and then released

C

absorbed

D

neither absorbed nor released

Text Solution

Verified by Experts

The correct Answer is:
( b)
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Knowledge Check

  • What is the mass ratio of iron and sulphur in which they combine to form iron sulphide ?

    A
    `2:3`
    B
    `3:2`
    C
    `5.6:3.2`
    D
    `3:3`

  • When a mixture of iron filings and sulphur is treated with dilute hydrochloric acid,

    A
    ferric chloride is formed
    B
    iron filings remains unreacted
    C
    Sulphur dissolves
    D
    hydrogen gas is produced

  • Iron is not present in the form of sulphide in:

    A
    fool's gold
    B
    siderite
    C
    chalcopyrite
    D
    limonite

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    Why is it that iron in a mixture of iron fillings and sulphur powder is attracted by a magnet , but iron present in ferrous sulphide (FeS) is not ?

    What do you think would happen when a mixture of iron filings and sulphur powder is heated ?

    A mixture of white powder and coke is heated in nitrogen gas very strongly. The product are

    When a mixture of sand and KNO_(3) is heated strongly the gaseous product (s) is /are

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