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The ratio of the energy of a photon of 2000Å wavelength radiation to that of 4000 Å radiation is: (1) 1/4 (2) 4 (3) 1/2 (4) 2 Ans
If you were to combine 120.0 mL of 0.100 M HCL with 3.25 grams of calcium metal, how many grams of hydrogen gas would you make?
Question 1: (i) With the aid of a diagram, briefly explain the natural environmental system. (ii) Explain the green house effect, and give 2 examples of green house gases
energy order of octahedral, tetrahdral, squareplaner.
What are ferrites? Ferrites are ceramic compounds containing trivalent metal having three valence electrons, iron and oxide of divalent element i.e. metals having two free ele
Why is zinc is not extracted from zinc oxide through reduction with CO? Solution) Reducing agent should have more negative ΔG value. In case of zinc oxide ,Zn has more negativ
Why lithium and beryllium markedly differ from other members of their respective groups?
explain why boiling and meliting points of nitroalkanes than that of iosmeric alkyl nitrites
what is equivalent weight of formaldehyde(HCHO)
The elements of first transition series from variety of oxides of different oxidation states having general formulae MO, M 2 O 3 , M 3 O 6 , MO 2 , MO 3 . These oxides are gene
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