corrosion, Chemistry

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classification corrosion

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Energy required to dislodge electron h- atom, The energy required to dislod...

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

Number of nodal centres for 2s orbital, Number of nodal centres for 2s orbi...

Number of nodal centres for 2s orbital: (1) 1        (2) 0        (3) 4        (4) 3 Ans: 1

Explain colligative properties of solutions, Q. Explain Colligative propert...

Q. Explain Colligative properties of Solutions? Colligative properties  of solutions are those properties which depend on the concentration of the solution rather that the ty

Number of electrons and neutrons of an element & mass no, The number of ele...

The number of electrons and neutrons of an element is 18 and 20 respectively. Its mass number is: (1) 17              (2) 37        (3)2              (4)38 Ans: 17

The total number of orbitals in an energy level designated, The total numbe...

The total number of orbitals in an energy level designated by principal quantum number  n is equal to: (1) 2n                    (2) 2n 2            (3) n

How can we obtain boron, Q. How can we obtain Boron? Boron is- obtained...

Q. How can we obtain Boron? Boron is- obtained by the red-action of B 2 O 3 with magnesium or sodium B 2 0 3 is first prepared by strongly katingH 3 B0 3 which is obtained b

Find an expression for dg during a reversible advancement, The state of a g...

The state of a galvanic cell without liquid junction, when its temperature and pressure are uniform, can be fully described by values of the variables T, p, and ξ. Find an expressi

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