Home
Class 12
CHEMISTRY
Roasted tin-stone ore after washing with...

Roasted tin-stone ore after washing with water is known as

A

Moistuyre is removed

B

As and S are removed in the form of their volatile oxides

C

Any ferrous oide is oxidised to ferric oxide.

D

The mass becomes compact and thus makes it sutiable for ready reduction to metallic iron.

Text Solution

Verified by Experts

The correct Answer is:
D
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • METTALURGY

    NARAYNA|Exercise Statement Typer Question|2 Videos

  • METTALURGY

    NARAYNA|Exercise Extraction of metals|44 Videos

  • METALLURGY

    NARAYNA|Exercise STATEMENT TYPE QUESTOINS|20 Videos

  • NUCLEAR CHEMISTRY

    NARAYNA|Exercise INTEGER|28 Videos

Similar Questions

Explore conceptually related problems

People use a variety of methods to wash clothes. Usually after adding the soap, they beat the clothes on a stone or beat them with a paddle, scrub with a brush or the mixture is agitated in a washing machine. Why is this agitation necessary to get clean clothes?

People use a variety of methods to wash clothes. Usually after adding the soap, they 'beat' the clothes on a stone, or beat it with a paddle, scrub with a brush or the mixture is agitated in a washing machine. Why is agitation necessary to get clean clothes?

Knowledge Check

  • Mark the wrong staement among the following. The iron ore after washing is roasted with a little coasl in excess of air. During roasting

    A
    Moistuyre is removed
    B
    As and S are removed in the form of their volatile oxides
    C
    Any ferrous oide is oxidised to ferric oxide.
    D
    The mass becomes compact and thus makes it sutiable for ready reduction to metallic iron.

  • Statement 1 : The tin obtained after smelting of black tin is known as block tin. Statement 2 : The tin can be cast into ingots or black.

    A
    Statement 1 is true, statement 2 is true : statement 2 is a correct explanation for statement 1
    B
    Statement 1 is true, statement 2 is true , statement 2 is not a correct explanation for statement 1
    C
    Statement 1 is true, stetament 2 is false
    D
    Statement 1 is true, statement 2 is statement 2 is true

  • The amount of water held by the soil after drainage is known as

    A
    Mineral water
    B
    Soil water
    C
    Field capacity
    D
    Gravitational capactiy

    • Similar Questions

    Explore conceptually related problems

    People use a variety of methods to wash clothes. Usually after adding the soap, they ‘beat’ the clothes on a stone, or beat it with a paddle, scrub with a brush or the mixture is agitated in a washing machine. Why is agitation necessary to get clean clothes?

    The sulphides ores are strongly heated in air : Roasting :: The carbonates ores are strongly heated in a limited supply of air : __________

    The sulphides ores are strongly heated in air : Roasting : : The carbonates ores are strongly heated in a limited supply of air : ……….

    Though tin stone is oxide of tine, yet roasting is carried out for this ore. Why ?

    A: Roasting process is involved in the metallurgy of Cu from Malachite ore. R: Roasting is the process of heating the ore in absence of air.

    Home
    Profile