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Q. Explain Distillation in purification of metals?
Metals with low boiling points, such as cadmium, zinc and mercury will be purified by distillation. The distillation is generally carried out under reduced pressure to enable boiling of the metal at lower temperature.
Q. Describe the Half -Life property of radioactive decay? Ans. The decay of a nucleus is a random event. It is impossible to predict which nucleus will decay and when.
Chemical properties of Cycloalkanes Cycloalkanes behave both such as alkenes and alkanes in their chemical properties. All cycloalkanes go through substitution reaction with ha
For sodium atom the number of electrons with m=0 will be: (1) 2 (2) 27 (3) 9 (4) 8 Ans: 7
give one book name about electromatric effect?&author name?
Describe discovery of sub atomic particles
A 0.5M solution of NaNO2 is made. What is the pH of the solution?
Q. Show the Chemical Properties of Group 13? Elements of Group 13 are comparatively less reactive than the alkali and alkaline earth metals of Groups 1 and 2 However, the +acti
why equilibrium state attainable from either way?
Types of polymerization Sol. Types of polymerization: polymerization is a process in which the joining together of many small molecules to form very large molecule called po
Q. What is Pairing energy explain? Pairing energy, P, depends mainly on the electronic distribution of the central metal ion and its value can be obtained from the atomic spect
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