When was the administration control of terls enstrusted to physcial research laboratory, ahmedabad?

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what does the haversian central canal in each osteon contains?

1 Answers   Jindal,

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atoms are composed of Electrons & Protons or Electrons & Protons ?

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Emerald is ----in colour 1 Violet 2 Yellow 3 Deep green 4 Prussian blue

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Which are known as non - luminous irregular nebulae?

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Which of the following is not a bleaching agent? 1 Sulphur dioxide 2 Carbon dioxide 3 Sodium hypochlorite 4 Chlorine

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Which of the following is commonly called a ‘polyamide’? 1 Rayon 2 Orlon 3 Terylene 4 Nylon

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Amalgams are 1 Alloys which contain carbon 2 Alloys which have great resistance to abrasion 3 Alloys which contain mercury as one of the contents 4 None of these

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Graphite and sillimanite are 1 Refractory minerals 2 Ferrous minerals 3 Base minerals 4 None of these

1 Answers  

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What is the Taxonomy ?

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In which of the following processes, is vanadium pent oxide used as a catalyst? 1 Contact process 2 Haber’s process 3 Solvay process 4 None of these

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An atom of an element with mass number 23 and atomic number 11 will have 1 11 neutrons, 12 protons and 11 electrons 2 11 protons, 12 neutrons and 11 electrons 3 11 neutrons, 11 protons and 12 electrons 4 23 protons and 11 electrons

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