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Which of the following statements is not correct for an electron that has the quantum numbers n=4 and m =2: (1) The electron may have the quantum number s= +1/2 (2) The e
Which of the following are isoelectronic species I= CH + 3 , II-NH 2 , III- NH + 4 , IV-NH 3 (1) I, II, III (2) II, III, IV (3) I, II
Q. How to calculate atomic mass of an element? Copper survive as a mixture of two isotopes. The lighter isotope (Cu-63) amid 29 protons and 34 neutrons makes up 69.17% of coppe
Which of the following electronic configuration is not possible according to Hund's rule: (1) 1s 2 2s 2 (2) 1s 2 2s 1 (3) 1s 2
what are the periodicity of periodic properties in d and f block elements?
Q. How to determine wavelength of electromagnetic waves? The frequency as well as velocity of a wave determines its wavelength the distance between equivalent points on a con
Q. Colloidal systems in foods? A colloidal system is a heterogeneous system. The material that forms the base of the system is called the dispersion medium or the continuous ph
Q. Define Egg foam stability? The two factors of utmost importance in egg white foams are stability and volume. Several factors influence one or both of these characteristics
Dichromate titrations - oxidation reduction titrations These are titrations where, potassium dichromate is utilized as an oxidising agent in acidic medium. The medium is organi
Explain Peroxide-promoted addition Peroxide-promoted addition is in competition with normal addition and rearrangement. The normal processes happen at the same rate at which t
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