Description : How many of the following are metal carbonates : Dolomite ,Malachite ,Azurite ,Siderite Calamine , Magnasite ,Limestone ,Washing soda ,Cerussite
Last Answer : How many of the following are metal carbonates : Dolomite ,Malachite ,Azurite ,Siderite Calamine , Magnasite ,Limestone ,Washing soda ,Cerussite
Description : How many of the following are oxides ores (i) Carnalite (ii) Cuprite (iii) Cassiterite (iv) Chromite (v) Cinnabar (vi) Calamine (vii) Cerussite (Viii)
Last Answer : How many of the following are oxides ores (i) Carnalite (ii) Cuprite (iii) Cassiterite (iv) ... (vii) Cerussite (Viii) Chalocopyrite (ix) Chalcocite
Description : Howw does the samsung plasma tv compare to the vizio tv?
Last Answer : It really depends on what you like in a tv. A lot of people prefer the Samsung brand over the vizio. They are both good quality tv's.Check them both out in the store to see which picture you like the most.
Description : At a site, low grade copper ores are available and zinc and iron seraps are also available. Which of the two seraps will be more suitable for reducing the leached copper ore and why ?
Last Answer : Ans. : The E0 value for the redox couple Zn2+/ Zn(-0.76V) is more negative than that of Fe2+/ Fe(- 0.44) redox couple. Therefore, Zinc is more reactive than iron and hence reduction will ... Zinc seraps are used, But Zinc is a costier metal than iron so using iron scraps would be more economical.
Description : What does the minerals talcmuscovite mica quartz and olivine?
Last Answer : Feel Free to Answer
Description : Which of the following mineral is least resistant to weathering ? a. Quartz b. Olivine c. Goethite d. Anorthite
Last Answer : c. Goethite
Description : Which of the following mineral is not part of the discontinuous reaction series? (A) olivine (B) pyroxene (C) amphibole (D) plagioclase
Last Answer : plagioclase
Description : What is the last mineral to crystallize from a magma in Bowen’s reaction series (A) olivine (B) quartz (C) pyroxene (D) Biotite
Last Answer : quartz
Description : The most common mineral found in igneous rock is: w) feldspar x) olivine y) muscovite z) fluorite
Last Answer : ANSWER: W -- FELDSPAR
Description : What is the sign of calamine ?
Last Answer : Clamine signal ZnCO3
Description : What is Calamine ?
Last Answer : Calamine is a type of lotion which is basically zinc carbonate ( ZnCO3) .
Description : Which chemical is present in calamine lotion ?
Last Answer : : Zinc carbonate ( ZnCO3) is present in calamine lotion.
Description : Among the following list of malachite ,marble anglestite ,azurtite ,dolomite ,sedererite ,calamine and chromite
Last Answer : Among the following list of malachite ,marble anglestite ,azurtite ,dolomite ,sedererite ,calamine and chromite
Description : Which diagram is correctly related to the extraction of Zn from Calamine?
Last Answer : Which diagram is correctly related to the extraction of Zn from Calamine? A. Calamine` overset(" ... ore`overset("Reduction by carbon") rarr Zn`
Description : The formula of calamine ore is
Last Answer : The formula of calamine ore is A. ZnS B. `FeCO_(3)` C. `ZnCO_(3)` D. `Cu_(2)S`
Description : Is Calamine lotion a good chigger treatment to alleviate itching?
Last Answer : Calamine lotion is the prescribed treatment for chiggers. It should dry them out eventually.
Description : Which of the following is not an ore of magnesium? (1) Carnallite (2) Dolomite (3) Calamine (4) Sea water
Last Answer : (3) Calamine
Description : What is the chemical name of calamine?
Last Answer : Anhydrous calcium chloride
Description : When a bee stings ,a paste of calamine is applied because (a) Bee sting consist of base. (b) To neutralized the effect of formic acid injected via bee sting (c) Both (A) and (B) (d) None
Last Answer : (b) To neutralized the effect of formic acid injected via bee sting
Description : Which of the following materials consists of a powder in water? a) Suspension A suspension requires shaking before application, exemplified by calamine lotion. b) Hygroscopic agent A hygroscopic agent is a ... and ointment. d) Linament A linament is a lotion with oil added to prevent crusting.
Last Answer : a) Suspension A suspension requires shaking before application, exemplified by calamine lotion.
Description : Is siderite a gemstone, mineral, meteorite, or all of the above?
Last Answer : I’m going to go with mineral, but minerals can look different depending on how they crystalize, so sometimes they can be shiny making them look like gems. https://en.wikipedia.org/wiki/Siderite
Description : Number of oxide orwesd among , (i) Cassiterite (ii) pyrolusite (iii) Kieserite (iv) Azurite (V) chromite (vi) siderite are.
Last Answer : Number of oxide orwesd among , (i) Cassiterite (ii) pyrolusite (iii) Kieserite (iv) Azurite (V) chromite (vi) siderite are.
Description : Is siderite soluble in water?
Last Answer : Siderite is not soluble in water.
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.
Description : The most important ore of lead is – (1) Galena (2) Magnetite (3) Pyrolusite (4) Siderite
Last Answer : (1) Galena Explanation: Galena is the natural mineral form of lead sulfide. It is the most important lead ore mineral. Galena is one of the most abundant and widely distributed sulfide minerals.
Description : The iron ore which contains 72% of iron is – (1) Magnetite (2) Limonite (3) Haematite (4) Siderite
Last Answer : (1) Magnetite Explanation: Iron (Fe) is a metallic element and composes about 5% of the Earth's crust. When pure it is a dark, silvery-gray metal. It is a very reactive element ... alloy. Iron-nickel meteorites are believed to represent the earliest material formed at the beginning of the universe.
Description : Siderite is an ore of–
Last Answer : Iron
Description : Which of the following minerals is not subjected to magnetic separation method? (A) Rutile (B) Galena (C) Chromite (D) Siderite
Last Answer : (B) Galena
Description : Which of the following is not a pyrite ore? (A) Celestite (B) Galena (C) Gypsum (D) Siderite
Last Answer : (D) Siderite
Description : __________ is an ore of lead. (A) Quartz (B) Galena (C) Siderite (D) Chalcopyrite
Description : Pig iron is produced by blast furnaces in India using mostly the iron ore named (A) Hematite (B) Magnetite (C) Siderite (D) Chalcopyrite
Last Answer : (A) Hematite
Description : Upto a maximum of 72% of iron, is available in (A) Magnetite (B) Limonite (C) Siderite (D) Iron pyrites
Last Answer : Answer: Option A
Description : The most important ore of lead is (1) Galena (2) Magnetite (3) Pyrolusite (4) Siderite
Last Answer : Galena
Description : Which mineral is the ore of aluminium ? (1) Haematite (2) Bauxite (3) Magnetite (4) Siderite
Last Answer : Bauxite
Description : The iron ore which contains 72% of iron is : (1) Magnetite (2) Limonite (3) Haematite (4) Siderite
Last Answer : Magnetite
Description : What are ores? Give example. What are ‘placer deposits’? Give example of mineral found in such deposits. -Geography
Last Answer : The term Ores' is referred to the gathering of such minerals which are mixed with other elements. To make its extraction sodium salt, the mineral content should be in sufficient concentration of the ore ... and the base of hills. Minerals found in such deposits are Gold, Silver, Tin and Platinum.
Description : What are ores? Give example. -SST 10th
Last Answer : (i) The term ore is used to describe an accumulation of any mineral mixed with other elements. Minerals are usually found in ores. Metals are extracted from the ores after removing the impurities ... . Gold, silver, tin and platinum are examples of some important minerals found in placer deposits'
Description : Which state is the largest producer of manganese ores in India? -SST 10th
Last Answer : Odisha is the largest producer of manganese ores in India. It accounted for one-third of the country’s total production in 2000-01
Description : Which oil is used in the floatation method for the purification of ores? -General Knowledge
Last Answer : The answer is 'Pine oil'
Description : Which ores are usually heavier ?
Last Answer : Oxide ores are usually heavier.
Last Answer : Ores means ore
Description : Sulfide ores are common for the metals.
Last Answer : Sulfide ores are common for the metals. A. Ag,Cuand Pb B. Ag ,Cu and Sn C. Ag,Mg and Pb D. Al.Cu and Pb
Description : how many of the following are ores of copper chalopyrite Cuprite , chalcoite ,malachite Azurite ,Bornite ,Limonite ,Zicite ,Braunite .
Last Answer : how many of the following are ores of copper chalopyrite Cuprite , chalcoite ,malachite Azurite ,Bornite ,Limonite ,Zicite ,Braunite .
Description : Statement -1 : Ores are generally converted into oxides , prior to reduction . Statement- 2 : Metal oxides can be easily reduced .
Last Answer : Statement -1 : Ores are generally converted into oxides , prior to reduction . Statement- 2 : Metal oxides ... -1 : is false , statement-2 : is true
Description : Statement-I : All the ores are mineral Statement-II : Most of the ores contains metals in combined state
Last Answer : Statement-I : All the ores are mineral Statement-II : Most of the ores contains metals in combined state
Description : Which of the following pairs is not correctly matched with respect to the extraction of metals from their ores ?
Last Answer : Which of the following pairs is not correctly matched with respect to the extraction of metals from ... -Aluminium and tin from their oxides ores .
Description : In extraction of metal how many of the following ores calcination process is involved . (i) Dolomite (ii) Malachite (iii) Calcite (iv) Copper pyrities
Last Answer : In extraction of metal how many of the following ores calcination process is involved . (i) Dolomite ... Siderite (viii) Iron pyrite (ix) Ar gentite
Description : Copper is the most noble of first row transition metals and occurs in small deposits in serveral countries. Ores of copper include chalcanthite `(CuSO
Last Answer : Copper is the most noble of first row transition metals and occurs in small deposits in serveral ... -reduction. Iron is removed from chalcopyrite as.
Last Answer : Copper is the most noble of first row transition metals and occurs in small deposits in ... self-reduction. Partial roasting of chalcopyrite produces
Description : Amongst the various ores of a metal (M) (sulphide, carbonates, oxides, hydrated or hydroxides) two ores [X] and [Y] show the following reactivity. (i)
Last Answer : Amongst the various ores of a metal (M) (sulphide, carbonates, oxides, hydrated or hydroxides) ... and hydroxide ores D. Carbonate and oxide ores