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Q. What is law of definite proportions? A given compound is forever composed of the same elements in the same proportion by mass. This fact is recognized as the law of definit
When an electron jumps from L to K shell: (1) Energy is absorbed (2) Energy is released (3) Energy is sometimes absorbed and sometimes released (4) Energy is nei
The cell diagram of a mercury cell can be written Zn(s) | ZnO (s) NaOH (aq) HgO (s) HgO (I) (a) Write the electrode reactions and cell reaction with electron number z = 2.
easy ways to find basic radicals in qualitative analysis
The energy of second Bohr orbit of the hydrogen atom is -328 kJ mol-1, hence the energy of fourth Bohr orbit would be: (1) - 41 kJ mol -1 (2) -1312 kJ mol -1 (3) -164
Q. Explain heat according to kinetic theory of matter? Ans. On an atomic level the definitions of heat and temperature becomes more precise. According to the kinetic theory of
Uses of Resorcinol (a) Resorcinol is used as antiseptic and for creating dyes. (b) Resorcinol is also used in the medicine of eczema. 2, 4, 6-trinitroresorcinol is required
DISAVANTAGES OF FLAME AAS
addition of different regent in sample of salt changes its colour
Q. Describe Electron Configurations and Orbital Diagrams? Ans. Remember that the atomic number of an atom tells us the number of protons and electrons in the neutral atom. To a
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