Answer / malikmakram

Sad rafiq is the Minster of railway

what kind of question can be asked in interview for UV- VISIBLE & give me answer ?

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As per X-ray Fluorescence theory, when material particle is irradiated with X-ray the electron of innermost orbital of that element atom is exited and emits outside of the atom as photoelecrons, living behind a hole in innermost orbital . This hole is filled by outer orbital electrons. The question is that finely what happens to that photo electon which is emitted outside of the atom?

1 Answers   Grasim,

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How the value of Absorbance and molar extinction coefficient are caluculated?

2 Answers   Panacea,

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why the atomic weights are in fractions?

1 Answers  

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At a constant temp. volume is inversly proportional to pressure. This is Boyle's law. But, when u give pressure to a football, how the volume also increases?

1 Answers  

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what are UV rays absorbs slightly?

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what is earthing?

1 Answers   Marksans Pharma,

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who is minister of railoway

1 Answers   HKL,

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During Soundness testing of Cement by Lechatelier method the Cement mould expands about 20 mm when merged in curing water for 24 hours after mould preparation.In that Cement MgO content is about 3.0%,SO3 is about 2.6% & Blaine is about 360 M2/Kg.Guess the reason & suggest solution.

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what does 50 denote in dowex 50 ????

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The rate constant for the second order reaction is 0.54/M.s at 300oC. How long (in sec) would it take for the concentration of NO2 to decrease from 0.62M to 0.28 M? 2NO2(g) 2 NO(g) + O2(g)

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is the pH effects the solubility/micibility of the compound?

4 Answers  

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