Description : Aluminium is extracted from bauxite (a) By reduction with carbon (b) By reduction with Mg (c) By reduction with CO (d) By electrolysis in molten cryolite
Last Answer : Ans:(d)
Description : 36. Aluminium is extracted from alumina (Al2O3 ) by electrolysis of a molten mixture of : (1) Al2O3 + KF + Na3AlF6 (2) Al2O3 + HF + NaAlF4 (3) Al2O3 + CaF2 + NaAlF4 (4) Al2O3 + Na3AlF6 + CaF2
Last Answer : Al2O3 + Na3AlF6 + CaF2
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.
Description : Aluminium is extracted from _____
Last Answer : Bauxite
Description : Why is extraction of aluminium not commercially viable by using reducing agents like coke? OR Coke is used in the extraction of iron but not in the extraction of aluminium. Why? OR Aluminium cannot be extracted by heating bauxite and coke. Why?
Last Answer : Oxygen of aluminium oxide cannot be easily taken away by reducing agents like coke.
Description : Aluminium is extracted from (A) Chalcocite (B) Bauxite (C) Galena (D) None of these
Last Answer : (B) Bauxite
Description : Which metal is extracted from sea water? (1) Potassium (2) Magnesium (3) Aluminium (4) Beryllium
Last Answer : Magnesium
Description : Aluminium is obtained by the electrolysis of pure of `Al_(2)O_(3)` dissolved in
Last Answer : Aluminium is obtained by the electrolysis of pure of `Al_(2)O_(3)` dissolved in A. Alumina B. Bauxite C. Cryolite D. Felspar
Description : The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by (A) Electrolysis (B) Electrolytic reduction (C) Electrolytic oxidation (D) None of these
Last Answer : (B) Electrolytic reduction
Description : Aluminium can be purified by (1) oxidation (2) distillation (3) electrolysis (4) ozonolysis
Last Answer : electrolysis
Description : My husband is getting two teeth extracted today. Any tips for him to cope with the aftermath?
Last Answer : answer:He will need to eat soft foods for a day or two. He won't want to chew on the side where the extraction was for a few days. He'll have a dressing in his mouth at the extraction sites. ... having my tooth pulled, I didn't feel any pain during the procedure. I also didn't need any painkillers.
Description : How old were you when you got your wisdom teeth extracted?
Last Answer : I was 27. It’s not a big deal, don’t worry.
Description : How long does it usually take to heal after having two wisdom teeth extracted?
Last Answer : I went home on a Friday and was back at work on Monday, at the oral surgeon’s office as an out patient. They will usually take the two wisdom teeth on the same side at one time. They took my right side wisdom teeth first and then four months later the left side.
Description : How did people get their wisdom teeth extracted before modern dentistry?
Last Answer : answer: Only at the end of the nineteenth century the use of local anesthesia together with the development of radiology led to the establishment of surgical dentistry. Especially the technique of ... 1950s, highly dangerous infections have become rare, PubMed Before that they were left alone.
Description : What would be the maximum travel range do you believe that can extracted from a motor glider?
Last Answer : answer:They have already flown around the world with small engines Here’s the Wiki article. Batteries and solar powered Solar planes Here’s Sunseeker II
Description : Is wearing my retainer while 3 of my wisdom teeth growing in a bad thing? And do wisdom teeth need to be extracted?
Last Answer : answer:Always, always, always wear your retainer. If you need to get it adjusted for your wisdom teeth, tell your ortho on your next retainer check or call to make an appt. No, not everyone needs there wisdom teeth removed. If they come in fine, then you are okay.
Description : What is mainly extracted from pitchblende?
Last Answer : Uranium
Description : What is cinnabar? How is metal extracted from cinnabar? Explain briefly. -Science
Last Answer : Cinnabar is HgS. Mercury is obtained by roasting cinnabar. HgO formed is thermally unstable and gives mercury. Mercury can be purified by distillation.
Description : …….. is the meaningful content that is extracted from the data after processing. -Technology
Last Answer : Information is the meaningful content that is extracted from the data after processing.
Description : Which metal is extracted by thermal reduction process? -Do You Know?
Last Answer : answer:
Description : Which metal is extracted by electrolytic reaction method? -Do You Know?
Description : When was the first gas extracted in Bangladesh ?
Last Answer : In 1955, the first gas was extracted in Bangladesh.
Description : Name any four chemical produce by plants for its defence but extracted by man on a commercial scale ?
Last Answer : Name any four chemical that plants produce for their defence against herbivores,but are extracted by man on a commercial scale ?
Description : Among the sulphide oers of Ag,Hg,Pb,Fe Cu anZn how many of them can be extracted by self reduction process.
Last Answer : Among the sulphide oers of Ag,Hg,Pb,Fe Cu anZn how many of them can be extracted by self reduction process.
Description : How many of the following metals can be extracted buy carbon reduction method ? Na,Al,Mg,Sn,Fe,Pb,Zn,Ca
Last Answer : How many of the following metals can be extracted buy carbon reduction method ? Na,Al,Mg,Sn,Fe,Pb,Zn,Ca
Description : Highly electropositive metals can not be extracted by carbon reduction process because these :
Last Answer : Highly electropositive metals can not be extracted by carbon reduction process because these : A. Metals ... D. Loss of metal is more by vaporisation
Description : Metallic gold ferquently is found is aluminosilicate rocks and it is finely dispersed among other minerals. It may be extracted by treating the crushe
Last Answer : Metallic gold ferquently is found is aluminosilicate rocks and it is finely dispersed ... hydrometallurgical extraction D. purification of metal.
Last Answer : Metallic gold ferquently is found is aluminosilicate rocks and it is finely dispersed among other minerals. It may be ... agent. D. (A) and ( C) both
Description : Metallic gold frequently is found is aluminosilicate rocks and it is finely dispersed among other minerals it may be extracted by treating the crushed
Last Answer : Metallic gold frequently is found is aluminosilicate rocks and it is finely dispersed among other minerals it may be ... ) rarr Zn[(CN)_(4)]^(-)`
Description : Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from theirs ores involves the following
Last Answer : Minerals from which metals can be extracted economically and easily are called ores. The ... . D. roasting followed by electrolytic reduction.
Last Answer : Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from ... 2)S+2Cu_(2)O rarr 6Cu+SO_(2)`
Description : Assertion: `Ag` and `Au` are extracted by leaching the ores with a dilute solution of `NaCN`. Reason: Impurities associated with these ores dissolve i
Last Answer : Assertion: `Ag` and `Au` are extracted by leaching the ores with a dilute solution of `NaCN`. ... . Statement-1 is false but Statement -2 is true
Description : The metal extracted by leaching with cyanide is
Last Answer : The metal extracted by leaching with cyanide is A. Mg B. Ag C. Cu D. Na
Description : Name the metal M which is extracted on the basis of following reactions: `4M+8NaCN+2H_(2)O+O_(2)to` `4NaM(CN)_(2)+4NaOH` `2NaM(CN)_(2)+ZntoNa_(2)Zn(CN
Last Answer : Name the metal M which is extracted on the basis of following reactions: `4M+8NaCN+2H_(2)O+O_(2)to` `4NaM(CN)_(2 ... 2M` A. Au or Ag B. Hg C. Ni D. Fe
Description : Metals which can be extracted by smelting process are :
Last Answer : Metals which can be extracted by smelting process are : A. Zns B. Al C. Pb D. Fe
Description : (A) All minerals are ores (R ) Ores are minerals from which metal can be extracted convenitly and economically
Last Answer : (A) All minerals are ores (R ) Ores are minerals from which metal can be extracted convenitly and ... If (A) is incorrect but (R ) is correct
Description : The copper metal is extracted from its
Last Answer : The copper metal is extracted from its A. Carbonate ore B. Sulphide ore C. Sulphate ore D. Chloride ore
Description : Is it true that many metals are extracted from ores that contain sulfide minerals?
Last Answer : Feel Free to Answer
Description : How is Amethyst extracted?
Last Answer : Need answer
Description : Quinine, the effective medicine in the treatment of malaria, is extracted from
Last Answer : Bark of Cinchona
Description : 'Hinterland' refers to: (a) continental shelf in the sea from which oil can be extracted (b) natural harbour used for international trade (c) land region extending from a sea port (d) abandoned sea port where trade was carried out initially
Last Answer : Ans: (c)
Description : Pencillin is extracted from – (1) yeast (2) algae (3) fungus (4) lichen
Last Answer : (3) fungus Explanation: Penicillin is a secondary metabolite of certain species of Penicillium and is produced when growth of the fungus is inhibited by stress.
Description : Malaria can be cured with a drug extracted from (1) Belladonna tree (2) Cinchona tree (3) Oak tree (4) Neem tree
Last Answer : (2) Cinchona tree Explanation: Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
Description : From the bark of which plant is quinine extracted? (1) Eucalyptus (2) Cinchona (3) Neem (4) Cedar
Last Answer : (2) Cinchona Explanation: Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
Description : From which one of the following is quinine extracted? (1) Sarpagandha (2) Opium (3) Cinchona (4) Datum
Last Answer : (3) Cinchona Explanation: Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.