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If molecular mass and atomic mass of sulphur are 256 and 32 respectively, its atomicity is: (1) 2 (2) 8 (3 )4 ( 4)16 Ans: 8
how to calculate the styx code for the borane atom?
Types of spectrometers: The two types of spectrometers for ICP-AES are: sequential spectrometers and simultaneous spectrometers. Those have the capabilities of measuring the v
Q. Illustrate modern atomic model of De Broglie? 1. Electrons inhabit the space surrounding the nucleus and can exist in several discrete principal energy levels each designate
The electronic configuration of a dipositive metal M 2+ is 2, 8, 14 and its atomic weight is 56 a.m.u. The number of neutrons in its nuclei would be: (1) 30 (2)32
The energy required to dislodge electron from excited isolated H-atom, IE 1 = 13.6 eV is: (1) = 13.6eV (2) > 13.6eV (3) 3.4 eV
why is ethanol used as an solvent in substitution reactions? ethanol is used as an solvent because it is soluble in water and also it is more reacive.... Ethanol is used u
Analysis show that nickel oxide has formulla ni .98 O 1.00 what fraction of the of nickel exist as ni+3 & Ni +2 Ans) ni+2=95.91 and ni+3=4.09
number of electrons of cyanide
state the purification processes commonly used by organic chemists to separate different components from a mixture
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