KVPY Government Jobs Exams

The hybridizations of Ni(CO)4 and Cr(H2O)6
2+, respectively, are
(A) sp3 and d3sp2 (B) dsp2 and d2sp3 (C) sp3 and d2sp3 (D) dsp2 and sp3d2

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KVPY Other Question

The Quantum Hall Resistance RH is a fundamental constant with dimensions of resistance. If h is Planck's
constant and e the electron charge, then the dimension of RH is the same as -
(A) e^2/h (B) h/e^2 (C) h^2/e (D) e/h^2 Extraction of silver is achieved by initial complexation of the ore (Argentite) with X followed by reduction
with Y. X and Y respectively are
(A) CN– and Zn (B) CN– and Cu (C) Cl– and Zn (D) Br– and Zn