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what are the periodicity of periodic properties in d and f block elements?
What are the Advantages of cold working (i) No heat is required. (ii) Better surface finish is obtained. (iii) Superior dimension control. (iv) Improved strength and h
The energy of a photon is calculated by: (1) E= hv (2) h= Ev (3) h = E/v (4) E= h/v Ans: E= hv
Physical properties of Alkyl isocyanides (1) Alkyl isocyanides are colourless, unpleasant smelling liquids. (2) Alkyl isocyanides are insoluble in water but freely soluble i
Q. Determine Molecular Mass of Atoms Ans: 6.02 x 10 23 is a really big number. It would be hard to count that many of any object. That's one of the reasons we count atoms b
How do impurities and temperature affect electrical resistivity of metals? Ans: Temperature effect on resistivity: Any increase in temperature of a conductor increase
Preparation of alkene
Q. What is Oxidation Numbers? Ans. Chemists find it useful to describe the oxidation states of an element by means of oxidation numbers. The oxidation number of an element
write the expression for the expansion work?
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.
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