Isotopes are separated by 1 Filtration 2 Sublimation 3 Distillation 4 Crystallization

10 Answers   Bank Exams, dpdc, MPSC, NIFT, State Bank Of India SBI,

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Explain the Evolution of Science as a discipline in the Medieval Period

0 Answers   Mahatma Gandhi University,

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Which of the following reagents gives a silver mirror test when added to aldehydes? 1 Fehling’s solution 2 Tollen’s Reagent 3 Ebaeyer’s Reagent 4 Nessler’s Reagent

1 Answers  

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The group of metals Fe, Co, Ni may be best called as 1 Alkali metals 2 Rare metals 3 Main group metals 4 Transition metals

2 Answers  

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Which of the following is used as a lubricant? 1 Graphite 2 Silica 3 Diamond 4 Iron oxide

3 Answers   Honda,

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According to Dalton’s atomic theory, the smallest particle which can exist independently is 1 An atom 2 A molecule 3 A cation 4 An anion

1 Answers  

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When and where was the tata institute of fundamental research founded?

0 Answers  

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Which of the following metals was first discovered by man? 1 Bronze 2 Silver 3 Iron 4 Copper

3 Answers  

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Two or more forms of a chemical element having different physical properties but rising to identical chemical compounds are called 1 Allotropes 2 Isotopes 3 Isomers 4 Isotones

2 Answers  

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The presence of which of the following salts in water causes corrosion in steam boilers? 1 Sodium chloride 2 Magnesium chloride 3 Calcium bicarbonate 4 Potassium bicarbonate

1 Answers  

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The gas that usually causes explosions in coal mines is 1 Hydrogen 2 Carbon monoxide 3 Air 4 Methane

8 Answers   BCECE, UPSC,

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‘Saponification involves the hydrolysis of fats and oils by 1 Water 2 Washing soda 3 Stearic acid 4 Caustic soda

1 Answers  

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