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The quantum number which may be designated by s, p, d, and f instead of number is:
(1) n
(2) l
(3) m1
(4) m2
ans: l
Q. Mention the stages in product life cycle, at which sensory evaluation is used? Initial screening, product optimization, scale up and production are the stages in product lif
what is castner kellner process
Nitrous acid (HNO2) is an unstable compound when prepared by the following reaction: HCl (g) + NaNO2 (s) ? HNO2 (l) + NaCl (s). As the product of the above reaction is unstable, t
Give chemical reaction in support of each of the following statements: (i) The +1 oxidation state gets stabilised progressively from Ga to TI in Group (ii) All the bonds PCl5
who formulated the laws of chemical combination?
Diazomethane has the following composition by mass: 28.57% c ,4.80% h and 66.64% n . The molar mass of diazometane is 42.04 g/mol. Find the molecular formula of diazomethane and dr
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The energy of an electron in orbit of hydrogen atom is : (1) 13.6/n 4 x eV (2) 13.6/n 3 xeV (3) 13.6/n 2 xeV (4)13.6/nx eV Ans:
Which of the following set of quantum number is not possible: n l m1 m2 (a) 3 2 1
Q. What are the rules used for round off numbers? 1. If the digit to the instantaneous right of the last significant figure is less than five don't change the last significan
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