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The emission spectrum of hydrogen is found to satisfy the expression for the energy change. teiangle E (in joules) such thatTriangle E= 2.18x10(1/n21 - 1/ n21) J where n1 = 1, 2, 3..... and = n2, 3, 4....... The spectral lines correspond to Paschen series to:
(1) n1= 1 and n2 = 2,3,4,
(2) n1= 3 and n2= 4,5,6,
(3) n1= 1and n2= 3,4,5,
(4) n1= 2 and n2= 3,3,5
(5)n1= 1 and n2 = infinity
Ans: n1= 3 and n2= 4,5,6,
The number of 2p electrons having spin quantum numbers= -1/2 are: (1) 6 (2) 0 (3) 2 (4) 3 Ans: 3
caco3
Prepare a table that lists the expressions for the dimensionless concentration profiles and catalyst effectiveness factors for slab, cylinder and spherical catalysts.
what is acid
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
what is mesomeric effect ,types ,applications
Nomenclature of organic compounds - Trivial System The meaning of Nomenclature is assignment of names to organic compounds. There are two major systems of nomenclature of org
While solving lime sida numericals we calculate CACO3 equivalent .In this we do conc. In ppm×100/mol. Wt. ssomewhere we multiply 2 × m. Wt .so wht 2
Viscosity: Viscosity characterizes the motion of fluids in the presence of a mechanical shear force. All fluids can flow, and the resistance they pose to such flow is called VI
ionic equation by ionelectron method (half reaction)
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