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Ions which have the same electronic configuration are those of:
(1) Lithium and sodium
(2) Sodium and potassium
(3) Potassium and calcium
(4) Oxygen and chlorine
Ans: Potassium and calcium
Ingrain dyes (developed dyes) - Ingrain dyes are those that are synthesised straight on the fabric. Instances of this type of dyes are azo dyes. In this the fabric is wrapped up
Q. What are factorial experiment studies? Factorial experiment studies determine the effect of some independent variables on food quality indices through varying two or more in
The f-block elements contains of two series of inner transition elements i.e. lanthanoids (the fourteen elements subsequent lanthanum) and actinoids (the fourteen elements subseque
Substitution reactions Replacement of a molecule or set/group of the substrate by any another type of atom or group is termed as substitution reactions. Examples :
Q. Example to show scientific notation? Solve the following problem. 2.45 *10 14 kg + 4.00 * 10 12 kg First articulate both quantities to the same power of ten. Either
name 5 organic compound that can be purify using simple distillation
what is the mass of a proton and electron
Calculate how much heat energy is required to raise the temperature of a cube of copper of side 2cm. from 300 to 320k. given: density=8933kg/m cube , atomic weight=63.55, cp=24j/k/
OUTLINE AND EXPLAIN THE LIMITATIONS OF VBT
The charge on the atom containing 17 protons, 18 neutrons and 18 electrons is: (1) +1 (2) -2 (3) -1 (4)Zero Ans: -1
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