1. How many liters of is obtained at STP from 100 g pure CO2 CaCO3?
A. 22.4 LB. 2.24 LC. 0.224 LD. 2.42 L 100 g CaCO3 CO2 CO2 22.4L
2. Which one below is not a reducing agent?
A. CuSO4B. KIC. SnCl2D. H2C2O4
3. According to WHO, what is the lethal dose of Cd for human?
A. 1 gB. 1 mgC. 1μgD. 1 ng
4. If the oxidation potential of and are respectively + 0.76V & then the total potential of the cell will be? Zn/Zn2+ Ag/Ag+ −0.769V
A. +1.529VB. +0.779VC. +0.039VD. −1.529V E 0 cell = E 0 Zn/Zn2+ + E 0 Ag+/Ag = (+0.76 + 0.769)V = +1.529V
5. Who is the father of ethology?
A. Konrad LorenzB. Niko TinbergenC. DarwinD. Lamarck
6. Translate: If today is Monday, what day will the 61st day be?
A. TuesdayB. SundayC. MondayD. Saturday Back