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Q. What do you know about Radioactive Dating? Ans. Half-life measurements of radioactive elements in rocks and fossils can be used to determine the age of the specimen. On
Q. Define standard reduction potential ? Ans. The standard reduction potential, E o As we have seen in the example of a chemical cell in the previous section, the redox rea
Carbon an essential constituent of all organic compounds The word organic means to organs of both plants and animals and organic chemistry is the study of the products which or
Can we vary the pressure while phases remain in equilibrium? Consider a system containing only NH 4 Cl(s), NH 3 (g), and HCl(g). Assume that the equilibrium NH 4 Cl(s) ↔ NH
physical properties
what is colloid?
The number of electrons in the nucleus of C 12 is (1) 6 (2) 12 (3)0 (4)3 Ans: 0
The shape of P -orbital is : (1) Elliptical (2) Spherical (3) Dumb-bell (4) Complex geometrical Ans: Dumb-bell
Q. How to balance a redox equation? Ans. Redox equations may be written and balanced by the ionic half-reaction method. Let's use the half-reaction method to balance the f
Q. How many centigrams are in 5 kilograms? Two conversion factors are essential to solve this problem. Keep in mind that there are 1000 grams in a kilogram and 100 centigrams i
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