Metallurgy MCQ Practice Bits

Metallurgy MCQ Practice Bits. We covered all the Metallurgy MCQ Practice Bits in this post for your convenience. You can now prepare for the metallurgy MCQ from anywhere using our website for free.

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01 The ore of mercury among the following is

1. bauxite
2. haematite
3. galena
4. cinnabar

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02 The furnace in which smelting is carried out is

1. reverberatory furnace
2. blast furnace
3. open hearth furnace
4. retort furnace

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03 If the gangue is acidic, the flux used is

1. SiO2
2. So2
3. CaO
4. Co2

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04 The substance added to remove the impurity is

1. flux
2. fuel
3. gangue
4. slag

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05 The gas released in calcination is

1. No2
2. So2
3. Co2
4. O2

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06 The ore of iron is

1. carnallite
2. dolomite
3. bauxite
4. haematite

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07 The method of chemical pyrolysis used to convert sulphide ore into oxide ore is

1. smelting
2. calcination
3. roasting
4. burning

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08 The impurity present in the ore is called as

1. gangue
2. flux
3. slag
4. mineral

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09 Which of the following is a carbonate ore?

1. magnesite
2. bauxite
3. gypsum
4. galena

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10 Which of the following is the correct formula of gypsum

1. CuSo4.2H2o
2. CaSo4.1/2H2o
3. CuSo4.5H2o
4. CaSo4.2H2o

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11 The oil used in the froth floatation process is

1. kerosene oil
2. pine oil
3. coconut oil
4. olive oil

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12 Forth floatation is a method used for the purification of ……. ore

1. sulphide
2. oxide
3. carbonate
4. nitrate

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13 Galena is an ore of ……

1. Zn
2. Pb
3. Hg
4. Al

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14 The metal that occurs in the native form is …….

1. Pb
2. Au
3. Fe
4. Hg

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15 The most abundant metal in the earth’s crust is …….

1. silver
2. aluminium
3. zinc
4. iron

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16 The reducing agent in thermite process is ……

1. Al
2. Mg
3. Fe
4. Si

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17 The purpose of smelting an ore is to ………. it

1. oxidise
2. reduce
3. neutralise
4. none of these

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18 The formula of carnallite is

1. MgCo3
2. MgSo4.7H2o
3. Kcl Mgcl2.6H2o
4. Caco3.MgCo3

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19 This group of elements are called chalcogens

1. 14th group
2. 16th group
3. 15th group
4. 17th group

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20 The gas which is liberated during electrolysis of sodium chloride, is

1. chlorine
2. oxygen
3. nitrogen
4. hydrogen

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