18) What is the observation that can be made from the experiment?
Anonymous Quiz
24%
Brown solution of KBr turns colourless
46%
Colourless solution of KBr turns brown
22%
Colourless solution of Cl₂ turns yellow
8%
Yellow solution of Cl₂ turns brown
19) Why do Cl₂ is a better oxidising agent than Br₂?
Anonymous Quiz
35%
It is easier for Cl₂ atom to release its valence electron
57%
It is easier for Cl₂ atom to accept an electron to its valence shell
8%
It is easier for Br₂ atom to accept an electron to its valence shell
❤1
20) Write the complete ionic equation for the reaction between potassium chloride with iodine water.
Anonymous Quiz
33%
No ionic equation can be made because no reaction occurs
25%
No ionic equation can be made because there is a precipitate formed
30%
2Cl⁻ + I₂ → Cl₂ + 2I⁻
12%
Cl₂ + 2I⁻ → 2Cl⁻ + I₂
21) This table proves that...
Anonymous Quiz
36%
Lithium is a better oxidising agent
32%
Lead is a better oxidising agent
20%
Lead is a better reducing agent
12%
Lead cannot be displaced by Lithium in a reaction
22) Molecules with a more positive or less negative E° value are...
Anonymous Quiz
47%
Easier to undergo reduction
27%
A stronger reducing agent
17%
Greater tendency to donate electrons
9%
A weaker oxidising agent
23) What is the function of a salt bridge?
Anonymous Quiz
11%
Allowing chemicals to mix
13%
Allowing precipitate to form
76%
Allowing ions to flow
24) Which of these substances has a higher reducing strength?
Anonymous Quiz
39%
Lithium
11%
Lead
22%
Hydrogen
28%
Fluorine
25) Determine the anode for this voltaic cell
Anonymous Quiz
10%
Magnesium Sulphate Solution
57%
Magnesium Electrode
16%
Magnesium Ion
16%
Copper Electrode
👍1
26) Determine the substance that undergoes reduction in this chemical cell
Anonymous Quiz
18%
Zinc
39%
Copper
24%
Zinc Ion
19%
Copper Ion
27) What is the energy change that occurs in a simple chemical cell?
Electrical → chemical Chemical → electrical Chemical → heat
Electrical → chemical Chemical → electrical Chemical → heat
Anonymous Quiz
30%
Electrical → chemical
63%
Chemical → electrical
7%
Chemical → heat
28) Construct a correct cell notation based on the information given
Anonymous Quiz
29%
Mg²⁺(aq) | Mg(s) ║ Sn(s) |Sn²⁺(aq)
48%
Mg(s) | Mg²⁺(aq) ║ Sn²⁺(aq) | Sn(s)
12%
Sn²⁺(aq) | Sn(s) ║ Mg(s) | Mg²⁺(aq)
11%
Sn(s) | Sn²⁺(aq) ║ Mg²⁺(aq) | Mg(s)
29) Calculate the voltage reading for the Daniell cell:
Anonymous Quiz
15%
-1.10V
57%
+1.10V
28%
-0.42V
0%
+0.42V