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(3) 1 Angstrom

Which of the following is a chemical change? 1 Oxidation 2 Reduction 3 Sublimation 4 Decomposition

2 Answers  

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Titanium is purified by 1 Zone refining 2 Electrolysis 3 Van Arkel method 4 Hydraulic washing

4 Answers  

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Rusting of iron involves 1 Oxidation 2 Reduction 3 Displacement 4 Decomposition

5 Answers   MTS, SSC,

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The wavelength of X-ray is of order of 1 1 cm 2 1m 3 1 Angstrom 4 10 micron

1 Answers  

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Which of the following gases is used as an illuminant in lamps used by hawkers? 1 Methane 2 Ethylene 3 Acetylene 4 Hydgrogen

3 Answers  

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Which among the following is a positively charged particle emitted by a radioactive element? 1 Alpha ray 2 Beta ray 3 Gamma ray 4 Cathode ray

2 Answers  

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The correct sequence of various regions I absorption spectrum is 1 Visible, ultraviolet, microwave, infra red 2 Infra red, gamma rays, ultraviolet, microwave 3 Ultra violet, visible, infra red, microwave 4 None of these

1 Answers   CPSE,

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The recent atomic weight scale is based on 1 1H1 2 1H2 3 6C12 4 8O16

1 Answers  

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precautions to be observed while using electrical equipment

1 Answers  

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Quartz crystals normally used in quartz clocks etc. is chemically 1 Sodium silicate 2 Germanium oxide 3 Silicon dioxide 4 None of these

1 Answers  

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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

2 Answers  

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What is the Botany?

3 Answers  

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