Latest IIT-JEE Aptitude Question SOLUTION: NiCl2 {P (C2H5)2 (C6H5)}2 exhibits temperature dependentmagnetic behaviour (paramagnetic/ diamagnetic) . the coordination geometries of Ni2+ in the paramagnetic and diamagnetic sta

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Previous Question: Two spherical planets P andQ have the same unfirom density ï²,massesMP andMQ, an surface areas A and 4A, respectively. A spherical planet R also has unfirom density ï²ï€ and its mass is (MP + MQ) . The escape velocities from the planets P, Q and R, are VP, VQ and V respectivley. Then option (A) VQ > VR > VP (B) VR > VQ > VP (C) VR/VP = 3 (D) VP /VQ =1/2 Next Question: The reaction of white phosphorous with aqueous NaOH gives phosphine along with another phosphorus containing compound. The reaction type; the oxidation states of phosphorous in phosphine and the other product are respectively (A) redox reaction; 3 and 5 (B) redox reaction ; 3 and + 5 (C) disproportionation reaction ; 3 and + 5 (D) disproportionation reaction; 3 and + 3

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NiCl2 {P (C2H5)2 (C6H5)}2 exhibits temperature dependentmagnetic behaviour (paramagnetic/ diamagnetic) .
the coordination geometries of Ni2+ in the paramagnetic and diamagnetic states are respectively
(A) tetrahedral and tetrahedral
(B) square planar and square planar
(C) tetrahedral and square planar
(D) square planar and tetrahedral: Asked In IIT-JEE MAN (10 years ago); Unsolved; Is this Puzzle helpful? (2) (1) Submit Your Solution

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Previous Question: Two spherical planets P andQ have the same unfirom density ï²,massesMP andMQ, an surface areas A and 4A, respectively. A spherical planet R also has unfirom density ï²ï€ and its mass is (MP + MQ) . The escape velocities from the planets P, Q and R, are VP, VQ and V respectivley. Then option (A) VQ > VR > VP (B) VR > VQ > VP (C) VR/VP = 3 (D) VP /VQ =1/2 Next Question: The reaction of white phosphorous with aqueous NaOH gives phosphine along with another phosphorus containing compound. The reaction type; the oxidation states of phosphorous in phosphine and the other product are respectively (A) redox reaction; 3 and 5 (B) redox reaction ; 3 and + 5 (C) disproportionation reaction ; 3 and + 5 (D) disproportionation reaction; 3 and + 3

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