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Q. Determine Atomic Number and Mass Number? One of the four naturally taking place isotopes of chromium has a mass number of 53. Determine the number of electrons, protons and
Distinguish between acetaldehyde and ketone
balance the equation
Q. Explain about Roasting process? Roasting is the method of heating ores in the presence of excess air and involves oxidation. It is mainly applied to sulphide ores, which are
Draw the IR spectra of pyridine
With which of the given pairs CO 2 resembles: (1) HgCl 2 , C2H 2 (2) HgCl 2 , SnCl 4 (3) C 2 H 2 , NO 2 (4) N 2 O and NO 2
The chemical formula for pure water is H 2 O. Pure water breaks up into an equal number of H + (aq) and OH - (aq) ions. As the amounts of the H + and OH - ions are equal, water i
How can you classify matter in a easy to remember way?
Q. Show the Colorimetric analysis? Colorimetric analysis depends on the variation of the colour with the change in concentration of the compound. Usually, absorption of light i
how many laws of crystallography?
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