Monthly archives: October, 2017

REDOX REACTIONS AND ELECTROCHEMISTRY – 7

1) The electrochemical cell stops working after some time because  a) The electrode potentials of both the electrodes become zero b) The electrode potentials of both the electrodes become equal c) One of the electrodes is eaten away d) The reaction starts proceeding inthe opposite direction 2) Which of the following statement is incorrect for a galvanic cell ? a) Reduction occurs …

REDOX REACTIONS AND ELECTROCHEMISTRY – 6

1) Given that E0Zn2+/Zn=-0.763V and E0Cd2+/Cd=-0.403V, the emf of the cell Zn|Zn2+ || Cd2+ |Cd (a=0.004) (a=0.2) will be given by a) E=-0.36+(0.059/2)log(0.004/2) b) E=+0.36+(0.059/2)log(0.004/2) c) E=-0.36+(0.059/2)log(0.2/0.004) d) E+0.36+(0.059/2)log(0.2/0.004) 2) Which one of the following represents a standard hydrogen electrode correctly ? a) b) c) d) 3) The primary reference electrode for the measurement of …

10 Health Benefits of Black Seed (Nigella Sativa)

You may or may not have heard of Black seed (nigella sativa) before. It goes by many names, including black caraway, Roman coriander, and black cumin, to name a few. But no matter what you call it, these seeds are loaded with health benefits that we are only beginning to understand. From eliminating harmful bacteria …