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Write the neutral calcium atom has a number
The neutral calcium atom has a number of valence electrons euivalent to its group number, that is 2.
Explain the Systems at high pressure - Phase Diagram? Binary phase diagrams begin to look different when the pressure is greater than the critical pressure of either of the pur
diamond is covalent.yet it has high melting point.why?
It is Hydrated Potassium Aluminium Sulfate [ KAl(SO4)2·12H2O ].
What is difference among silica used in TLC and HPLC column? Ans) TLC is known as thin layer chromatography. The simple methods works on the principle of adsorption, where as HP
Q. Preparation of hot souffle ? i) Melt 12 g butter in a saucepan. Add 12 g flour and stir cook for 1-2 minutes. ii) Gradually add ¼ cup of scalded milk stirring continuou
The structure of external most shell of inert gases is; (1) s 2 p 3 (2) s 2 p 6 (3) s 1 p 2 (4) d 10
The number of unpaired electrons in an O 2 molecule is: (1) 0 (2) 1 (3) 2 (4) 3 Ans: 2
The shape of an orbital is given by the quantum number : (1) n (2) l (3) m (4) s Ans: l
The four quantum numbers of the valence electron of potassium are : (1) 4, 1, 0 and 1/2 (2) 4, 0, 1 and 1/2 (3) 4, 0, 0 and +1/2 (4) 4, 1, 1 and 1/
the ksp of al(OH)3 is very small (3.0x106-34). how much water is required to dissolve 1.0 g of this salt?on..
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