Galena is a mineral of (1) iron (2) gold (3) lead (4) calcium

Galena is a mineral of (1) iron (2) gold (3) lead (4) calcium
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Which of the following is also known as 'Galena'? (1) Lead sulphate (2) Lead oxide (3) Lead sulphide (4) Calcium sulphate

Description : Which of the following is also known as 'Galena'? (1) Lead sulphate (2) Lead oxide (3) Lead sulphide (4) Calcium sulphate

Last Answer : (3) Lead sulphide Explanation: Galena, also called lead glance, is the natural mineral form of lead sulfide. It is the most important ore of lead and an important source of silver.

The most important ore of lead is – (1) Galena (2) Magnetite (3) Pyrolusite (4) Siderite

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.

The most important ore of lead is (1) Galena (2) Magnetite (3) Pyrolusite (4) Siderite

Description : The most important ore of lead is (1) Galena (2) Magnetite (3) Pyrolusite (4) Siderite

Last Answer : Galena

Cinnabar, pyrite and galena are minerals which consist of one or more metals combined with the same element. Which one of the following is the element that is common to all three of these minerals? Is it: w) iron x) copper y) sulfur z) sodium

Description : Cinnabar, pyrite and galena are minerals which consist of one or more metals combined with the same element. Which one of the following is the element that is common to all three of these minerals? Is it: w) iron x) copper y) sulfur z) sodium

Last Answer : ANSWER: C-- SULFUR

Why lime stone is added in the extraction of lead from galena ?

Description : Why lime stone is added in the extraction of lead from galena ?

Last Answer : Why lime stone is added in the extraction of lead from galena ? A. It prevents the formation of ... moves the impurity of iron oxide as fusible slag.

Main source of lead is galena `(PbS)`. It is converted to Pb by `:` Self`-` reduction process is `:`

Description : Main source of lead is galena `(PbS)`. It is converted to Pb by `:` Self`-` reduction process is `:`

Last Answer : Main source of lead is galena `(PbS)`. It is converted to Pb by `:` Self`-` reduction process is `:` A. A B. B C. both D. none

Why lime stone is added in the extraction of lead from galena?

Description : Why lime stone is added in the extraction of lead from galena?

Last Answer : Why lime stone is added in the extraction of lead from galena? A. It prevents the formation of ... moves the impurity of iron oxide as fusible slag.

Galena (PbS) on heating in limited supply of air gives lead metal. This is known as

Description : Galena (PbS) on heating in limited supply of air gives lead metal. This is known as

Last Answer : Galena (PbS) on heating in limited supply of air gives lead metal. This is known as A. ... B. Calcination C. Self reduction D. Sulphatizing roasting

__________ is an ore of lead. (A) Quartz (B) Galena (C) Siderite (D) Chalcopyrite

Description : __________ is an ore of lead. (A) Quartz (B) Galena (C) Siderite (D) Chalcopyrite

Last Answer : (B) Galena

Which of the following minerals is a source of lead? w) Bauxite x) Hematite y) Malachite z) Galena

Description : Which of the following minerals is a source of lead? w) Bauxite x) Hematite y) Malachite z) Galena

Last Answer : ANSWER: Z -- GALENA

Galena is a primary ore of which of the following metals? w) zinc x) tungsten y) lead z) silver

Description : Galena is a primary ore of which of the following metals? w) zinc x) tungsten y) lead z) silver

Last Answer : ANSWER: Y -- LEAD

All example of a mineral occurring as layers in sedimentary rocks is (a) lignite (b) gold (c) lead (d) tin

Description : All example of a mineral occurring as layers in sedimentary rocks is (a) lignite (b) gold (c) lead (d) tin

Last Answer : Ans: (a)

Which of the following is an ore of iron? (A) Galena (B) Chalcopyrite (C) Hematite (D) Bauxite

Description : Which of the following is an ore of iron? (A) Galena (B) Chalcopyrite (C) Hematite (D) Bauxite

Last Answer : (C) Hematite

The mineral present in the human body in larger amounts than any other cation is (A) Sodium (B) Calcium (C) Potassium (D) Iron

Description : The mineral present in the human body in larger amounts than any other cation is (A) Sodium (B) Calcium (C) Potassium (D) Iron

Last Answer : Answer : B

Mineral constituent of chlorophyll is - (1) Iron (2) Magnesium (3) Calcium (4) Potassium

Description : Mineral constituent of chlorophyll is - (1) Iron (2) Magnesium (3) Calcium (4) Potassium

Last Answer : (2) Magnesium Explanation: Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesize carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for ... It is found in the chloroplasts of green plants, and is what makes green plants, green.

The name of the common mineral salt present in sweat is ? A. Calcium Oxalate B. Potassium Sulphate C. Sodium Chloride (Answer) D. Iron Sulphate E. None of these

Description : The name of the common mineral salt present in sweat is ? A. Calcium Oxalate B. Potassium Sulphate C. Sodium Chloride (Answer) D. Iron Sulphate E. None of these

Last Answer : C. Sodium Chloride (Answer)

The deficiency of this element leads to older leaves turning purple in colour on the underside. Identify the mineral? [a] Calcium [b] Phosphorus [c] Potassium [d] Iron [e] None of the above

Description : The deficiency of this element leads to older leaves turning purple in colour on the underside. Identify the mineral? [a] Calcium [b] Phosphorus [c] Potassium [d] Iron [e] None of the above

Last Answer : [c] Potassium

Mineral found in red pigment of vertebrate blood is (a) magnesium (b) iron (c) calcium (d) copper.

Description : Mineral found in red pigment of vertebrate blood is (a) magnesium (b) iron (c) calcium (d) copper.

Last Answer : (b) iron

Asbestos (A) Is a natural fibrous mineral substance (B) Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3) (C) Contains iron oxide and alumina (D) All the above

Description : Asbestos (A) Is a natural fibrous mineral substance (B) Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3) (C) Contains iron oxide and alumina (D) All the above

Last Answer : Answer: Option D

Mineral constituent of chlorophyll is (1) Iron (2) Magnesium (3) Calcium (4) Potassium

Description : Mineral constituent of chlorophyll is (1) Iron (2) Magnesium (3) Calcium (4) Potassium

Last Answer : Magnesium

Asbestos is formed of : (1) Calcium and Magnesium (2) Copper, Zinc and Manganese (3) Lead and Iron (4) Calcium and Zinc

Description : Asbestos is formed of : (1) Calcium and Magnesium (2) Copper, Zinc and Manganese (3) Lead and Iron (4) Calcium and Zinc

Last Answer : (1) Calcium and Magnesium Explanation: Pure and simple, asbestos is a group of naturally occurring minerals. It is composed of calcium and magnesium silicate. Asbestos occurs as veins in rocks and is mined from the ground, similar to coal.

Write the molecular formulae of: 1. Copper oxide 2. Iron (III) chloride 3. Sodium hydroxide 4. Iron (II) sulphide 5. Lead (II) oxide 6. Hydrogen nitrate (nitric acid) 7. Hydrogen sulphate (sulphuric acid) 8. Calcium hydroxide 9. Magnesium carbonate 10.Ammonium carbonate

Description : Write the molecular formulae of: 1. Copper oxide 2. Iron (III) chloride 3. Sodium hydroxide 4. Iron (II) sulphide 5. Lead (II) oxide 6. Hydrogen nitrate (nitric ... Hydrogen sulphate (sulphuric acid) 8. Calcium hydroxide 9. Magnesium carbonate 10.Ammonium carbonate

Last Answer : 1. Copper oxide - CuO 2. Iron (III) chloride - FeCl3 3. Sodium hydroxide - NaOH 4. Iron (II) sulphide - FeS 5. Lead (II) oxide - PbO 6. Hydrogen nitrate (nitric acid) - HNO3 7. ... ) - H2SO4 8. Calcium hydroxide - Ca(OH)2 9. Magnesium carbonate - MgCO3 10.Ammonium carbonate - (NH4)2CO3

Asbestos is formed of : (1) Calcium and Magnesium (2) Copper, Zinc and Manganese (3) Lead and Iron (4) Calcium and Zinc

Description : Asbestos is formed of : (1) Calcium and Magnesium (2) Copper, Zinc and Manganese (3) Lead and Iron (4) Calcium and Zinc

Last Answer : Calcium and Magnesium

What is Galena ?

Description : What is Galena ?

Last Answer : Galena is lead sulfide or lead sulfate.

Which of the following is a metallic ore? (1) Mica (2) Quartz (3) Feldspar (4) Galena

Description : Which of the following is a metallic ore? (1) Mica (2) Quartz (3) Feldspar (4) Galena

Last Answer : (4) Galena Explanation: Galena is the most abundant lead mineral. It is a metallic, lead-gray mineral with cubic cleavage and a distinctly high density. It belongs to the octahedral sulfide group of minerals with metal ions in octahedral positions.

Which of the following minerals is a source of iro w) Bauxite (pron: box-ite) x) Hematite (pron: he-ma-tite) y) Malachite (pron: mal-ah-kite) z) Galena (pron: ga-lee-nah)

Description : Which of the following minerals is a source of iro w) Bauxite (pron: box-ite) x) Hematite (pron: he-ma-tite) y) Malachite (pron: mal-ah-kite) z) Galena (pron: ga-lee-nah)

Last Answer : ANSWER: X -- HEMATITE

Which of the following is a metallic ore ? (1) Mica (2) Quartz (3) Feldspar (4) Galena

Description : Which of the following is a metallic ore ? (1) Mica (2) Quartz (3) Feldspar (4) Galena

Last Answer : Galena

Classify the following materials as metals and non-metals : Hydrogen, Sulphur, Selenium, Manganese, Calcium, Platinum, Gold, Silica, Polyester, Wood, Glass, Iron

Description : Classify the following materials as metals and non-metals : Hydrogen, Sulphur, Selenium, Manganese, Calcium, Platinum, Gold, Silica, Polyester, Wood, Glass, Iron 

Last Answer : Metals: calcium , manganese, platinum, gold , iron Non- metals: hydrogen, Sulphur, silica, polyester, wood, glass, selenium

The best conductors of heat are A) Silver and Copper B) Lead and Mercury C) Iron and Tin D) Gold and Platinum

Description : The best conductors of heat are A) Silver and Copper B) Lead and Mercury C) Iron and Tin D) Gold and Platinum

Last Answer : A) Silver and Copper

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.

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

Processed Galena produces which metal?

Description : Processed Galena produces which metal?

Last Answer : Lead

What are the chemical signals of Galena ?

Description : What are the chemical signals of Galena ?

Last Answer : Galena's chemical signal PbS

Statement-1: Auto reduction of ores is used for cinnabar, copper glance and Galena ores Statement-2:The sulphide ores of these metals react with their

Description : Statement-1: Auto reduction of ores is used for cinnabar, copper glance and Galena ores Statement-2:The sulphide ores of these metals react with their

Last Answer : Statement-1: Auto reduction of ores is used for cinnabar, copper glance and Galena ores Statement-2: ... Statement-1 is false but Statement -2 is true

Which of the following diagram is correctly related to extraction of pb from galena?

Description : Which of the following diagram is correctly related to extraction of pb from galena?

Last Answer : Which of the following diagram is correctly related to extraction of pb from galena? A. Galena ... ("Electrolytic ") underset(" reduction")rarrPb`

What is the chemical name for Galena?

Description : What is the chemical name for Galena?

Last Answer : Lead sulphite

The main ore of thorium is (A) Pitchblende (B) Monazite sand (C) Limonite (D) Galena

Description : The main ore of thorium is (A) Pitchblende (B) Monazite sand (C) Limonite (D) Galena

Last Answer : (B) Monazite sand

Pick out the material having minimum Rittinger's number. (A) Calcite (B) Pyrite (C) Quartz (D) Galena

Description : Pick out the material having minimum Rittinger's number. (A) Calcite (B) Pyrite (C) Quartz (D) Galena

Last Answer : (C) Quartz

Which of the following minerals is not subjected to magnetic separation method? (A) Rutile (B) Galena (C) Chromite (D) Siderite

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

Alum is commercially produced from (A) Gypsum (B) Feldspar (C) Galena (D) Bauxite

Description : Alum is commercially produced from (A) Gypsum (B) Feldspar (C) Galena (D) Bauxite

Last Answer : (D) Bauxite

Which of the following is not a pyrite ore? (A) Celestite (B) Galena (C) Gypsum (D) Siderite

Description : Which of the following is not a pyrite ore? (A) Celestite (B) Galena (C) Gypsum (D) Siderite

Last Answer : (D) Siderite

Aluminium is extracted from (A) Chalcocite (B) Bauxite (C) Galena (D) None of these

Description : Aluminium is extracted from (A) Chalcocite (B) Bauxite (C) Galena (D) None of these

Last Answer : (B) Bauxite

Which of the following minerals is a source of copper? w) Bauxite (pron: box-ite) x) Hematite y) Malachite z) Galena

Description : Which of the following minerals is a source of copper? w) Bauxite (pron: box-ite) x) Hematite y) Malachite z) Galena

Last Answer : ANSWER: Y -- MALACHITE

Processed Galena produces which metal

Description : Processed Galena produces which metal

Last Answer : Lead

Rock salt is a mineral containing – (1) potassium (2) magnesium (3) sodium (4) iron

Description : Rock salt is a mineral containing – (1) potassium (2) magnesium (3) sodium (4) iron

Last Answer : (3) sodium Explanation: Halite, commonly known as rock salt, is the mineral form of sodium chloride (NaCl). Halite forms isometric crystals. It commonly occurs with other evaporite deposit minerals such as several of the sulfates, halides, and borates.

Which one of the following is a mineral of iron? (1) Magnetite (2) Malachite (3) Cassiterite (4) Pyrolusite

Description : Which one of the following is a mineral of iron? (1) Magnetite (2) Malachite (3) Cassiterite (4) Pyrolusite

Last Answer : Magnetite

Rock salt is a mineral containing (1) potassium (2) magnesium (3) sodium (4) iron

Description : Rock salt is a mineral containing (1) potassium (2) magnesium (3) sodium (4) iron 

Last Answer : sodium

The mineral containing both magne- sium and calcium is?

Description : The mineral containing both magne- sium and calcium is?

Last Answer : dolomite

Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator? (A) Cresylic acid (B) Copper sulphate (C) Calcium carbonate (D) Sodium carbonate

Description : Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator? (A) Cresylic acid (B) Copper sulphate (C) Calcium carbonate (D) Sodium carbonate

Last Answer : (B) Copper sulphate

One of the following mineral is essential for life of animals and rot for plants (a) Calcium (b) Phosphorus (c) Iodine (d) Potassium

Description : One of the following mineral is essential for life of animals and rot for plants (a) Calcium (b) Phosphorus (c) Iodine (d) Potassium

Last Answer : (b) Phosphorus