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Q. Show the Occurrence of Metals? Earth's crust and sea are the two main sources of metals. In the earth's crust metals occur both in the combined state in the form of minerals
Q. What is Geometrical isomers? Let us take one final example of Ma 2 b 2 cd where the following five isomers are possible as shown in Fig. 'When writing the geometrica
Q. Show the Effect of pressure on chemical equilibrium? Ans. In gases, the pressure is proportional to the number of moles of molecules. Reactions accompanied by a change
is relation a=2r+ + 2r- correct for bcc
whAT IS SOLID STATE
Silica glass: It is produced by heating pure sand to its melting point. Because of absence of refining agents, it is extremely difficult to get rid of all air-bubbles. Moreover, o
The W-cell consists of a cadmium amalgam anode and a mercury-mercurous sulfate cathode with a saturated cadmium sulfate solution as the electrolyte. This cell has been commonly use
Which of the following principles/rules limits the maximum number of electrons in an orbital to two: (1) Aufbau principle (2) Pauli's exclusion principle (3) Hund's rule
Q. Halides of Boron and Aluminium? All the elements of Group 13 form binary halides. All the four trihalides of each element are known, with one exception. The compound Tl13 is
Mechanism of reduction (b)
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