Thursday, July 30, 2020

For a cell involving one electron E°Cell = 0.59 V at 298 K, the equilibrium constant for the cell reaction is :[Given that at T = 298 K] A. 1.0 × 105
B. 1.0 × 1010
C. 1.0 × 1030
D. 1.0 × 102


VIDEO SOLUTION LINK



pH of a saturated solution of Ca(OH)2 is 9. The solubility product (Ksp) of Ca(OH)2 is: A. 0.25 × 10–10
B. 0.125 × 10–15
C. 0.5 × 10–10
D. 0.5 × 10–15



Friday, July 24, 2020

IIT JEE ADVANCED 2019 FULL VIDEO SOLUTION, CHEMISTRY



IIT JEE ADVANCED 2019 FULL VIDEO SOLUTION, CHEMISTRY



NEET 2019 THERMOCHEMISTRY SOLUTION



Under isothermal condition, a gas at 300 K expands from 0.1 L to 0.25 L against a constant external pressure of 2 bar. The work done by the gas is (Given that 1 L bar = 100 J)

A. 5 Kj                B. 25 J          C. 30 J                                 D. –30 J


Answer : -30 joule VIDEO SOLUTION


  The order of the oxidation state of the phosphorus atom in H3PO2, H3PO4, H3PO3, and H4P2O6 is VIDEO LINK :- VIDEO LINK