Chemistry with Rafiq ⚗
Form 4 Chapter 2: Matter & Atomic Structure
COMMON MISTAKES MADE IN DRAWING QUESTIONS ❌‼️‼️
#chemistry #f4 #c2
-; ♡.° [ @serenenotes] ୭̥
Form 4 Chapter 2: Matter & Atomic Structure
COMMON MISTAKES MADE IN DRAWING QUESTIONS ❌‼️‼️
#chemistry #f4 #c2
-; ♡.° [ @serenenotes] ୭̥
❤7
do the drawing questions seriously although it only offers max 2 marks 💁💁
❤3👍1
This media is not supported in your browser
VIEW IN TELEGRAM
Today, I'd suggest focusing on progress over perfection. Take small steps towards your goals, and don't get discouraged by setbacks.
Consistency and determination are key. 🔐
Consistency and determination are key. 🔐
❤13
soo i prepared 30 questions, still from my ✨favourite✨ chapter Redox up until subtopic 1.3 Chemical Cell
1) Which of these reactions are redox reactions?
Anonymous Quiz
69%
Displacement of Halogens Reaction
15%
Acid-Base Reaction
16%
Double Decomposition Reaction
2) Which of these reactions are NOT redox reactions?
Anonymous Quiz
20%
Mg + CuSO₄ → MgSO₄ + Cu
58%
HCl + NaOH → NaCl + H₂O
23%
2Mg + CO₂ → 2MgO + C
3) Which substance is the oxidising agent?
H₂S + Cl₂ → S + 2HCl
H₂S + Cl₂ → S + 2HCl
Anonymous Quiz
48%
Cl₂
19%
H₂S
13%
HCl
19%
S
👍1🍓1
5) Which substance is the reducing agent?
Mg + 2HCl → MgCl₂ + H₂
Mg + 2HCl → MgCl₂ + H₂
Anonymous Quiz
46%
Mg
33%
HCl
9%
MgCl₂
12%
H₂
6) Which substance will undergoes reduction in a reaction?
Anonymous Quiz
22%
Potassium iodide, KI
40%
Acidified hydrogen peroxide, H₂O₂
20%
Potassium bromide, KBr
18%
Sulphur dioxide, SO₂
7) What is the change in oxidation number of chlorine?
2KClO₃ → 2KCl + 3O₂
2KClO₃ → 2KCl + 3O₂
Anonymous Quiz
44%
+5 to -1
21%
+5 to 0
15%
0 to +5
20%
0 to -1
8) What is the change in oxidation number of iron?
4Fe + 3O₂ → 2Fe₂O₃
4Fe + 3O₂ → 2Fe₂O₃
Anonymous Quiz
33%
0 to +2
43%
0 to +3
16%
+2 to +3
9%
+3 to +2