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Azimuthal quantum number for last electron of Na atom is: (1) 1 (2) 2 (3) 3 (4) 0 Ans: 0
THermodynamic free enrgy is the amount of work a thermodynamic system can perform. The concept is useful in the thermodynamics of chemical or thermal processes in engineering and
What are ferrites? Ferrites are ceramic compounds containing trivalent metal having three valence electrons, iron and oxide of divalent element i.e. metals having two free ele
Q. Show the basic Characteristics of Organic Compounds? Ans. Almost all organic compounds contain the elements of hydrogen and carbon. These compounds often contain
A tank contains 50 gal of a solution of NaCl in water (20% wt). To wash the tank, we supply fresh water at 10 gal/min and drain the tank at the constant rate of 10 gal/min. Determi
The boron trihalides are highly volatile; BF 3 (b. p., 173 K) and BCI 3 , (b. p., 260.5 K are gases, BBr 3 a volatile liquid (b. p., 319 K) and Bl 3 a low melting solid (m. p.,
What is the diagonal relationship between Beryllium and Aluminium
The electronic configuration of four elements are given in brackets: L (1s 2 , 2s 2 , 2p 1 , ) M (1s 1 , 2s 2 , 2p 5 ) Q (1s 2, 2s 2 , 2p 6 3s 1 ,) R ( 1s 1 , 2s 2 , 2p
Perfluorocarbons (PFCs): Perfluorocarbons (C n F 2n+2 ) are acquired by controlled fluorination of vapourized alkanes diluted along with nitrogen gas in the existence of a cata
Q. Describe SI System and Standards Ans: What units you will you use science class? Long ago people decided that the "foot" must be standardized so that when I measure
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