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💰 በ1000ብር Exam based tutorial ስንመዘግብ የነበረው ትላንት ከምሽቱ 6 ስዓት ለይ ተጠናቋል ከዚህ በኃላ መመዝገብ የሚፈልግ ተማሪ ከ ሰኞ እስከ ዕሮብ  1100 ብር በመክፈል  መመዝገብ የምትችሉ  መሆኑን አውቃቹ ያለተመዘገባቹ ተማሪዎች ትምህርት ሳየመልጣቹ  ተሎ እንድትመዘገቡ እናሳስባለን።

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🔢 ትክክለኛው የባንክ ቁጥራችን:
👉 CBE: 1000 4217 88891
👉 Dashen: 5420182982011
👉 Account Name: Cherinet Yihune Kasa

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💰 በ1000ብር ብቻ በመክፈል መመዝገብ ይችላሉ።

📚 ትምህርት ሰኞ ይጀመራል

🔢 ትክክለኛው የባንክ ቁጥራችን:
👉 CBE: 1000 4217 88891
👉 Dashen: 5420182982011
👉 Account Name: Cherinet Yihune Kasa

📸 ከከፈላችሁ በኋላ ደረሰኙን ፎቶ አንስታችሁ ከታች ባለው ስልክ ቁጥር ላይ መላክ አትርሱ

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❓|| multiple-choice chemistry questions along with their answers:

1. Which of the following statements about reaction kinetics is true?
A) The rate of a reaction is independent of temperature.
B) A catalyst increases the rate of reaction by changing the equilibrium constant.
C) The rate law can be determined from the stoichiometry of the balanced equation.
D) The concentration of reactants affects the rate of reaction according to the rate law.

Answer: D) The concentration of reactants affects the rate of reaction according to the rate law.

2. What is the value of the equilibrium constant K_c for the following reaction at equilibrium: 2A(g) + B(g) ⇌ 3C(g) ?
If at equilibrium, [A] = 0.5 M, [B] = 0.2 M, and [C] = 0.3 M.
A) 4.5
B) 1.5
C) 0.54
D) 6

Answer: C) 0.54

3 .Which of the following compounds has the highest boiling point?
A) Ethanol (C₂H₅OH)
B) Dimethyl ether (C₂H₆O)
C) Acetic acid (CH₃COOH)
D) Propane (C₃H₈)

Answer: C) Acetic acid (CH₃COOH)

4. What is the hybridization of the central atom in sulfur hexafluoride (SF₆)?
A) sp
B) sp²
C) sp³
D) sp³d²

Answer: D) sp³d²

5. Which of the following reactions is an example of a redox reaction?
A) H₂ + Cl₂ --> 2HCl
B) NaOH + HCl--> NaCl + H₂O
C) CaCO₃ --> CaO + CO₂
D) NH₃ + HCl --> NH₄Cl

Answer: A) H₂ + Cl₂ --> 2HCl

6. Which of the following statements about the periodic table is incorrect?
A) Elements in the same group have similar chemical properties.
B) Atomic radius increases down a group and decreases across a period.
C) Ionization energy generally decreases down a group.
D) Electronegativity increases down a group.

Answer: D) Electronegativity increases down a group.

7. What is the primary product formed when benzene reacts with bromine in the presence of a catalyst?
A) Bromobenzene
B) Benzyl bromide
C) Bromoethane
D) Dibromobenzene

Answer: A) Bromobenzene

8. What is the electron configuration of a neutral sulfur atom?
A) [Ne] 3s² 3p⁴
B) [Ar] 4s² 3d¹⁰ 4p⁴
C) [He] 2s² 2p⁶ 3s² 3p²
D) [Ne] 3s² 3p³

Answer: A) [Ne] 3s² 3p⁴

9. What is the molecular geometry of phosphorus pentachloride (PCl₅)?
A) Tetrahedral
B) Trigonal bipyramidal
C) Octahedral
D) Square planar

Answer: B) Trigonal bipyramidal

10. In a redox reaction, which species is reduced?
A) The oxidizing agent
B) The reducing agent
C) The product with higher oxidation state
D) The product with lower oxidation state

Answer: A) The oxidizing agent.

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ትክክለኛው የባንክ ቁጥራችን
👉CBE:1000 4217 88891
👉Dashen:5420182982011
👉Account Name:Cherinet Yihune Kasa

🔥ከከፈላችሁ ቡኃላ ደረሰኙን ፎቶ አንስታችሁ ከታች ባለዉ ስልካችን ላይ መላክ አንዳትረሱ

☎️ስልክ ቁጥር:0912764421/0912928114                                               

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