cobalt - Meaning in Hindi

Meaning of cobalt in Hindi

  • कोबाल्ट

cobalt Definition

Noun

  • the chemical element of atomic number 27, a hard silvery-white magnetic metal.

cobalt Example

  • a cobalt sky ( एक कोबाल्ट आकाश )
  • Nickel and cobalt are also strongly magnetic, and in 1903 the interesting discovery was made by F. ( निकल और कोबाल्ट भी दृढ़ता से चुंबकीय हैं, और 1903 में एफ द्वारा दिलचस्प खोज की गई थी। )
  • They are precipitated from their alkaline solutions as cobalt sulphide by sulphuretted hydrogen, but this precipitation is prevented by the presence of citric and tartaric acids; similarly the presence of ammonium salts hinders their precipitation by caustic alkalis. ( वे अपने क्षारीय समाधानों से उपजी हैं, क्योंकि सल्फ्यूरेटिड हाइड्रोजन द्वारा कोबाल्ट सल्फाइड के रूप में, लेकिन इस वर्षा को साइट्रिक और टार्टरिक एसिड की उपस्थिति से रोका जाता है; इसी तरह अमोनियम लवण की उपस्थिति कास्टिक क्षार द्वारा उनकी वर्षा में बाधा डालती है। )
  • Cobalt dioxide, Co02, has not yet been isolated in the pure state; it is probably formed when iodine and caustic soda are added to a solution of a cobaltous salt. ( कोबाल्ट डाइऑक्साइड, Co02, अभी तक शुद्ध अवस्था में अलग नहीं किया गया है; यह शायद तब बनता है जब आयोडीन और कास्टिक सोडा एक कोबाल्ट नमक के घोल में मिलाया जाता है। )
  • By the addition of excess of ammonia to a cobalt chloride solution in absence of air, a greenishblue precipitate is obtained which, on heating, dissolves in the solution, giving a rose-red liquid. ( हवा की अनुपस्थिति में एक कोबाल्ट क्लोराइड समाधान के लिए अमोनिया की अधिकता के अलावा, एक ग्रीनशीब्लेट अवक्षेप प्राप्त किया जाता है, जो गर्म करने पर, घोल में घुल जाता है, एक गुलाब-लाल तरल देता है। )

More Sentence 

  • Metallic cobalt may be obtained by reduction of the oxide or chloride in a current of hydrogen at a red heat, or by heating the oxalate, under a layer of powdered glass.
  • Heated at 190-300° in a current of hydrogen it gives the oxide C0304, while at higher temperatures the monoxide is formed, and ultimately cobalt is obtained.
  • Practically the metals iron, nickel and cobalt, and some of their alloys and compounds constitute a class by themselves and are called ferromagnetic substances.
  • The iodide, Co12, is produced by heating cobalt and iodine together, and forms a greyish-green mass which dissolves readily in water forming a red solution.
  • In a similar way potassium and ammonium cobalt alums have been obtained.
  • There was a rolling billow of cobalt fog off to one side, a whole bank of the stuff.
  • More cobalt bombs were dropped during the Fury than in all the preceding years of the war.
  • Place in the bulb a small piece of arsenical cobalt or "fly-stone," and apply heat.
  • The French soldiers have magnificent uniforms; the predominating color is a sort of cobalt blue.
  • Oxide of cobalt gives to the bead while hot a red color, which, upon being cooled, becomes grey.
  • Gives a cobalt and slight iron reaction when treated as the preceding minerals.
  • Gives the cobalt reaction, and after the cobalt has been, removed that of nickel.
  • It had been planned to strip off the cobalt cases, but someone forgot and then there wasn't time.
  • This salt may be used for the separation of cobalt and nickel, since the latter metal does not form a similar double nitrite, but it is necessary that the alkaline earth metals should be absent, for in their presence nickel forms complex nitrites containing the alkaline earth metal and the alkali metal.
  • Comparisons are usually made visually with platinum-cobalt standards prepared from mixtures of chloroplatinic acid and cobalt chloride.
  • The range of the artist’s palette widened to include cobalt blue, ultramarine, chrome yellow and viridian green.
  • Heaven help the villagers of Fungureme, still living in poverty alongside those cobalt deposits.
  • The result was a glorious panoply of sensual colour ranging from vibrant cobalt to cool mauve-blue, from sunflower yellow to melon.
  • Inorganic chemistry in particular provided the bulk of new pigments based on chromium, cadmium, cobalt, zinc, copper and arsenic.
  • The medium shade of cobalt blue comes from the element cobalt itself, which is silvery blue.  
  • Cobalt is important in the jet engines of aeroplanes because it makes turbine blades resist high temperatures.
  • This blown vessel has a body of translucent cobalt blue glass, with a casing of opaque white glass.

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