1. –CHO
2. –NO2
3. –CN
4. –NR2
–NR2
1. Mg2P2O7
2. H3PO4
3. Mg3(PO4)2
4. P2O5
Mg2P2O7
1. Na2S and NaCN
2. NaSCN
3. Na2SO3 and NaCN
4. Na2S and NaCNO
NaSCN
1. CO2 & H2
2. C2H6 & CO2
3. H2 & C2H6
4. H2 & O2
C2H6 & CO2
1. Zn2++2e-→Zn(s)
2. Zn(s)→Zn2++2e-
3. Mn2++2e-→Mn(s)
4. Mn(s)→Mn++e-+1.5V
Zn(s)→Zn2++2e-
1. 10%NH4Cl
2. 20%NH4Cl
3. 30%NH4Cl
4. 40%NH4Cl
20\%NH4Cl
1. Acid storage cell
2. Alkali storage cell
3. Both
4. Cant be predicted
Acid storage cell
1. +0.476V
2. -0.404V
3. +0.404V
4. +0.772V
+0.404V
1. H2 is cathode, Cu is anode
2. Oxidation occurs at Cu electrode
3. Reduction occurs at H2 electrode
4. H2 is anode, Cu is cathode
H2 is anode, Cu is cathode
1. 96500
2. 5×96500
3. 96500×2
4. 96500×6
5×96500