The compound of a metal found in nature is called - (1) Mineral (2) Ore (3) Flux (4) Slag

The compound of a metal found in nature is called - (1) Mineral (2) Ore (3) Flux (4) Slag
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(1) Mineral Explanation: Metals are an integral part of our planet and are found in almost all rocks and soils. Most metals form compounds called minerals, which are naturally occurring, inorganic solids with regular chemical compositions and crystal structures.
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Flux addition during smelting of ore is done to (A) Remove impurities/gangue (B) Enhance rate of reaction (C) Accelerate reduction of ore (D) Separate slag from metal

Description : Flux addition during smelting of ore is done to (A) Remove impurities/gangue (B) Enhance rate of reaction (C) Accelerate reduction of ore (D) Separate slag from metal

Last Answer : (A) Remove impurities/gangue

Which of the following refers to an easily melted product of the reaction between the flux and the impurities of an ore? w) slag x) slurry y) slug z) none of the above

Description : Which of the following refers to an easily melted product of the reaction between the flux and the impurities of an ore? w) slag x) slurry y) slug z) none of the above

Last Answer : ANSWER: W -- SLAG

Impurities in metal ores are called: w) flux x) gangue (pron: gang) y) slag z) sediments

Description : Impurities in metal ores are called: w) flux x) gangue (pron: gang) y) slag z) sediments

Last Answer : ANSWER: X -- GANGUE

The function of neutral flux used in the pyrometallurgy of metal extraction is to increase the __________ of the slag. (A) Fluidity (B) Basicity (C) Acidity (D) Viscosity

Description : The function of neutral flux used in the pyrometallurgy of metal extraction is to increase the __________ of the slag. (A) Fluidity (B) Basicity (C) Acidity (D) Viscosity

Last Answer : Option A

The function of neutral flux used in the pyrometallurgy of metal extraction is to increase the __________ of the slag. (A) Fluidity (B) Basicity (C) Acidity (D) Viscosity

Description : The function of neutral flux used in the pyrometallurgy of metal extraction is to increase the __________ of the slag. (A) Fluidity (B) Basicity (C) Acidity (D) Viscosity

Last Answer : Option A

Which of the following is an undesirable property of slag produced during the Pyrometallurgical method of metal extraction from its ore? (A) High fusibility & fluidity (B) High thermal conductivity (C) Low density (D) High chemical activity

Description : Which of the following is an undesirable property of slag produced during the Pyrometallurgical method of metal extraction from its ore? (A) High fusibility & fluidity (B) High thermal conductivity (C) Low density (D) High chemical activity

Last Answer : B) High thermal conductivity

________ is naturally occurring inorganic substance found deep under the surface of the earth. a) ore b)mineral c)metal d)non-metal

Description : ________ is naturally occurring inorganic substance found deep under the surface of the earth. a) ore b)mineral c)metal d)non-metal

Last Answer : b)mineral

Define the terms 1) Flux 2) Slag.

Description : Define the terms 1) Flux 2) Slag.

Last Answer : Flux: ‘A substance which is used to remove the gangue from ore is called flux’.  Slag: A fusible chemical compound formed by combination of the added flux and the gangue present in the ore.

Pick up the correct statement from the following: (A) Roasting is not necessary if iron ore is an oxide (B) Impurities float on the molten iron as slag (C) The slag contains lime about 45% (D) All the above

Description : Pick up the correct statement from the following: (A) Roasting is not necessary if iron ore is an oxide (B) Impurities float on the molten iron as slag (C) The slag contains lime about 45% (D) All the above

Last Answer : Answer: Option D

. A mineral is termed as 'ore', if (A) A metal can be economically extracted from it (B) It contains ≥ 40% metal (C) The metal present in it is costly (D) All (A), (B) and (C)

Description : . A mineral is termed as 'ore', if (A) A metal can be economically extracted from it (B) It contains ≥ 40% metal (C) The metal present in it is costly (D) All (A), (B) and (C)

Last Answer : (A) A metal can be economically extracted from it

A homogenous mixture of two or more metal or a metal and non-metal is known as _____. a) alloy b)element c)mineral d)compound

Description : A homogenous mixture of two or more metal or a metal and non-metal is known as _____. a) alloy b)element c)mineral d)compound

Last Answer : a) alloy

Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag. (A) 2 (B) 3 (C) 0.8 (D) 6

Description : Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag. (A) 2 (B) 3 (C) 0.8 (D) 6

Last Answer : (B) 3

Most of the phosphorous present in the blast furnace burden enters into (A) Hot metal (B) Flue gases (C) Slag (D) Refractory lining

Description : Most of the phosphorous present in the blast furnace burden enters into (A) Hot metal (B) Flue gases (C) Slag (D) Refractory lining

Last Answer : (A) Hot metal

Dephosphorization of molten pig iron is favoured by (A) Oxidising and basic slag (B) Reducing and basic slag (C) High activity co-efficient of phosphorous in metal (D) Oxidising and neutral slag

Description : Dephosphorization of molten pig iron is favoured by (A) Oxidising and basic slag (B) Reducing and basic slag (C) High activity co-efficient of phosphorous in metal (D) Oxidising and neutral slag

Last Answer : Option B

Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight (A) 1.5 (B) 3 (C) 5

Description : Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight (A) 1.5 (B) 3 (C) 5

Last Answer : Option B

During pudding (A) Molten metal is kept clear of the fuel (B) Carbon is converted into carbonic acid gas (C) Silicon forms a slag (D) All the above

Description : During pudding (A) Molten metal is kept clear of the fuel (B) Carbon is converted into carbonic acid gas (C) Silicon forms a slag (D) All the above

Last Answer : Answer: Option D

Why is it essential to clean the excess weld metal on completion of the production weld? a) So it can be ready for painting b) To remove any rust c) To ensure it is suitably clean for visual inspection and NDT d) To remove slag from the undercut

Description : Why is it essential to clean the excess weld metal on completion of the production weld? a) So it can be ready for painting b) To remove any rust c) To ensure it is suitably clean for visual inspection and NDT d) To remove slag from the undercut

Last Answer : c) To ensure it is suitably clean for visual inspection and NDT

__________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace. (A) Bauxite (B) Limestone (C) Quartz (D) Manganese

Description : __________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace. (A) Bauxite (B) Limestone (C) Quartz (D) Manganese

Last Answer : (B) Limestone

__________ is used as a flux in the smelting of copper ore like chalcopyrite. (A) Coke breeze (B) Lime powder (C) Silica/quartz (D) Dolomite

Description : __________ is used as a flux in the smelting of copper ore like chalcopyrite. (A) Coke breeze (B) Lime powder (C) Silica/quartz (D) Dolomite

Last Answer : (C) Silica/quartz

If the ore impurities is (A) Clay, lime stone is used as flux (B) Lime stone, clay is used as flux (C) Quartz, lime stone and argillaceous iron ores are used as flux (D) All the above

Description : If the ore impurities is (A) Clay, lime stone is used as flux (B) Lime stone, clay is used as flux (C) Quartz, lime stone and argillaceous iron ores are used as flux (D) All the above

Last Answer : Answer: Option D

If the iron ore contains clay as an impurity, the flux added during calcination, is (A) Clay (B) Lime stone (C) Argillaceous iron ore (D) All the above

Description : If the iron ore contains clay as an impurity, the flux added during calcination, is (A) Clay (B) Lime stone (C) Argillaceous iron ore (D) All the above

Last Answer : Answer: Option B

Define: (i) Ore (ii) Flux

Description : Define: (i) Ore (ii) Flux 

Last Answer : Ore: The mineral from which the metal is conveniently and economically extracted is known as ore.  Flux: ‘A substance which is used to remove the gangue from ore is called flux’.

Which is the black impure aluminium oxide mineral found in nature?

Description : Which is the black impure aluminium oxide mineral found in nature?

Last Answer : Emery

Name the mineral ore from which aluminium is extracted? -SST 10th

Description : Name the mineral ore from which aluminium is extracted? -SST 10th

Last Answer : (i) Bauxite. (ii) Aluminium is gaining importance because of its extreme lightness, good conductivity and great malleability. It combines the strength of metals such as Iron. (iii) ... large deposits. Odisha is the largest bauxite producing state. Others are Gujarat, Maharashtra and Jharkhand.

What do you understand by the term ‘mineral ore’? -SST 10th

Description : What do you understand by the term ‘mineral ore’? -SST 10th

Last Answer : Metallic minerals are extracted from the earth in raw state, it is known as ‘mineral ore’.

Does lead ore contain mineral feces ?

Description : Does lead ore contain mineral feces ?

Last Answer : Sand with lead ore as sand mineral feces.

How is the mineral ore bauxite processed to obtain aluminum?

Description : How is the mineral ore bauxite processed to obtain aluminum?

Last Answer : Bauxite is refined to alumina (aluminum oxide) by heating whilemixed with sodium hydroxide, where the resultant soluble compoundsodium aluminate can be removed from the ore. The aluminumhydroxide can be ... at the cathode of a very large processingcell.This is called the Hall-Heroult process.

If the cost of separating a mineral from waste rock becomes too great the mineral may no longer be classified as an ore. This happens because?

Description : If the cost of separating a mineral from waste rock becomes too great the mineral may no longer be classified as an ore. This happens because?

Last Answer : Feel Free to Answer

The commodity which accounts for the maximum volume of goods transported by the railways in India is (a) iron and steel (b) coal (c) mineral oil (d) metallic ores (other than iron ore)

Description : The commodity which accounts for the maximum volume of goods transported by the railways in India is (a) iron and steel (b) coal (c) mineral oil (d) metallic ores (other than iron ore)

Last Answer : Ans: (b)

Which of the following is the power resource mineral? A. Iron ore B. Limestone C. Coal 78 D. Copper

Description : Which of the following is the power resource mineral? A. Iron ore B. Limestone C. Coal 78 D. Copper

Last Answer : ANSWER: C

which of the follwing is metallic mineral? A. Chromite B. Iron ore C. Both a and b D. None of them

Description : which of the follwing is metallic mineral? A. Chromite B. Iron ore C. Both a and b D. None of them

Last Answer : ANSWER: C

which of the follwing is metallic mineral? A. Chromite B. Iron ore C. Both a and b D. None of them

Description : which of the follwing is metallic mineral? A. Chromite B. Iron ore C. Both a and b D. None of them

Last Answer : ANSWER: C

Which of the following is the power resource mineral? A. Iron ore B. Limestone C. Coal D. Copper

Description : Which of the following is the power resource mineral? A. Iron ore B. Limestone C. Coal D. Copper

Last Answer : ANSWER: C

Which mineral is the ore of aluminium? (1) Haematite (2) Bauxite (3) Magnetite (4) Siderite

Description : Which mineral is the ore of aluminium? (1) Haematite (2) Bauxite (3) Magnetite (4) Siderite

Last Answer : (2) Bauxite Explanation: Bauxite is an aluminium ore and is the main source of aluminium. Approximately 70% to 80% of the world's dry bauxite production is processed first into alumina, and then into aluminium by electrolysis.

Cinnabar is an ore/mineral of – (1) Lead (2) Manganese (3) Molybdenum (4) Mercury

Description : Cinnabar is an ore/mineral of – (1) Lead (2) Manganese (3) Molybdenum (4) Mercury

Last Answer : (4) Mercury Explanation: Cinnabarrefers to the common bright scarlet to brick red form of mercuryasullide (HgS) that is the most common source ore for refining elemental mercury. It is the historic source for the brilliant red or scarlet pigment termed vermilion and associated red mercury pigments.

Manganite is an ore/mineral of ______. (1) Beryllium (2) Chromium (3) Manganese (4) Copper

Description : Manganite is an ore/mineral of ______. (1) Beryllium (2) Chromium (3) Manganese (4) Copper

Last Answer : (3) Manganese Explanation: Manganite is an ore mineral of manganese. As a manganese ore, it ranks after pyrolusite and romanechite.

Which mineral is an ore of Aluminium

Description : Which mineral is an ore of Aluminium

Last Answer : Bauxite

Tick out the incorrect match: List I (Ore) List II (Mineral) a) Dolomite- MgCO3 b) Gibbsite3- H2O c) Gypsum2- H2O d) Geothite- Fe2O3

Description : Tick out the incorrect match: List I (Ore) List II (Mineral) a) Dolomite- MgCO3 b) Gibbsite3- H2O c) Gypsum2- H2O d) Geothite- Fe2O3

Last Answer : d) Geothite- Fe2O3

Cinnabar is an ore/mineral of (1) Lead (2) Manganese (3) Molybdenum (4) Mercury

Description : Cinnabar is an ore/mineral of (1) Lead (2) Manganese (3) Molybdenum (4) Mercury

Last Answer : Mercury

Which mineral is the ore of aluminium ? (1) Haematite (2) Bauxite (3) Magnetite (4) Siderite

Description : Which mineral is the ore of aluminium ? (1) Haematite (2) Bauxite (3) Magnetite (4) Siderite

Last Answer : Bauxite

Define the terms: (i) Mineral (ii) ore

Description : Define the terms: (i) Mineral (ii) ore 

Last Answer : i) Mineral: A naturally occurring substance present in earth's crust which contains metal in the free or combined state is known as mineral.   ii) Ore: The mineral from which the metal is conveniently and economically extracted is known as ore. 

Of the following processes in nature, which one involves only a physical change A. A bird digests a worm. B. Photosynthesis occurs in a leaf. C. An earthquake causes a rockslide. D. A chunk of iron ore rusts.?

Description : Of the following processes in nature, which one involves only a physical change A. A bird digests a worm. B. Photosynthesis occurs in a leaf. C. An earthquake causes a rockslide. D. A chunk of iron ore rusts.?

Last Answer : C: An Earthquake causes a rockslide

Assertion : Froth flatation process is used to concentrate sulphide ores. Reason : There is a difference in the nature of wettibility of different ore

Description : Assertion : Froth flatation process is used to concentrate sulphide ores. Reason : There is a difference in the nature of wettibility of different ore

Last Answer : Assertion : Froth flatation process is used to concentrate sulphide ores. Reason : There is a difference ... -1 is false but Statement -2 is true

Which of the following elements does not occur in nature as a native ore? w) silver x) gold y) platinum z) aluminum

Description : Which of the following elements does not occur in nature as a native ore? w) silver x) gold y) platinum z) aluminum

Last Answer : ANSWER: Z -- ALUMINUM

When elements that are never found free in nature but are always found combined in a compound are the?

Description : When elements that are never found free in nature but are always found combined in a compound are the?

Last Answer : These elements are very reactive.

Sodium chloride or Table salt occours in nature as the mineral

Description : Sodium chloride or Table salt occours in nature as the mineral

Last Answer : Halite

What type of metal is found free in nature ?

Description : What type of metal is found free in nature ?

Last Answer : Metals like gold , silver , platinum etc. are less active. That is why they are found free in nature.

Nature The second most abundant metal found in the earth’s crust is _____. A. Iron B. Calcium C. Sodium D. Aluminum

Description : Nature The second most abundant metal found in the earth’s crust is _____. A. Iron B. Calcium C. Sodium D. Aluminum

Last Answer : ANSWER: A

Which of the following metal is found in Free State in nature

Description : Which of the following metal is found in Free State in nature

Last Answer : Gold

In which form is Silicon most frequently found in nature? w) The free element Silicon x) Silicon-Oxygen compounds y) Silicon-Carbon compounds z) Silicon-Metal compounds

Description : In which form is Silicon most frequently found in nature? w) The free element Silicon x) Silicon-Oxygen compounds y) Silicon-Carbon compounds z) Silicon-Metal compounds

Last Answer : ANSWER: X -- SILICON-OXYGEN COMPOUNDS