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### Question 1:
If (3x + 5 = 20), what is the value of (x)?
A) 5
B) 10
C) 15
D) 20
### Question 2:
Which of the following is equivalent to the expression (2(x + 3) - 4)?
A) (2x + 6)
B) (2x + 2)
C) (2x + 8)
D) (2x - 6)
### Question 3:
A triangle has one angle measuring 90 degrees and another angle measuring 45 degrees. What is the measure of the third angle?
A) 30 degrees
B) 45 degrees
C) 60 degrees
D) 75 degrees
### Question 4:
What is the solution to the equation (x^2 - 9 = 0)?
A) -3
B) 0
C) 3
D) Both A and C
### Question 5:
In a survey, (60\%) of the people preferred chocolate ice cream over vanilla ice cream. If there are (200) people surveyed, how many preferred chocolate ice cream?
A) 60
B) 100
C) 120
D) 140
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Repost from 𝐌𝐚𝐫𝐚𝐤𝐢 𝐓𝐫𝐚𝐝𝐢𝐭𝐢𝐨𝐧𝐚𝐥 𝐂𝐥𝐨𝐭𝐡𝐞𝐬 𝐒𝐡𝐨𝐩𝐩𝐢𝐧𝐠 🛍
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+1
የ8ኛ ክፍል የአዲስ አበባ ከተማ አስተዳደር ከተማ አቀፍ ፈተና መስጫ የጊዜ ሰሌዳ
የ8ኛ ክፍል ከተማ አቀፍ መካከለኛ ደረጃ መልቀቂያ ፈተና ሰኔ 4 እና 5/2016 ዓ.ም እንደሚሰጥ የአዲስ አበባ ከተማ አስተዳደር ትምህርት ቢሮ አሳውቋል።
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+1
የ6ኛ ክፍል የአዲስ አበባ ከተማ አስተዳደር ከተማ አቀፍ ፈተና መስጫ የጊዜ ሰሌዳ
የ6ኛ ክፍል ከተማ አቀፍ መካከለኛ ደረጃ መልቀቂያ ፈተና ከሰኔ 12 - 14/2016 ዓ.ም እንደሚሰጥ የአዲስ አበባ ከተማ አስተዳደር ትምህርት ቢሮ አሳውቋል።
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#reposted
🖊English Worked EUEE [2004-2014]
This file contains 🖋:- ✅Grammar ✅Vocabulary ✅Writing ✅Jumbled words ✅Paragraph coherence ✅Communication#️⃣ከ600 በላይ ጥያቄዎችን እስከነ መልሳቸው አዘጋጅተንላቿል❤️ ▍📌 @TopperTutor
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Multiple choice exam questions from organic compounds
1. Which of the following is an ester?
(a) CH3CH2OH
(b) CH3COOH
(c) CH3COOCH3
(d) CH3CH2NH2
2. How are esters formed?
(a) Oxidation of alcohols
(b) Reaction of carboxylic acids with alcohols
(c) Hydration of alkenes
(d) Reduction of aldehydes
3. What is the general formula of an ester?
(a) RCOOH
(b) RCOOR'
(c) RNH2
(d) RCONH2
4. Which of the following is a carboxylic acid?
(a) CH3CH2OH
(b) CH3COOH
(c) CH3COOCH3
(d) CH3CH2NH2
5. How are carboxylic acids formed?
(a) Oxidation of alcohols
(b) Reaction of esters with water
(c) Hydration of alkenes
(d) Reduction of aldehydes
6. What is the general formula of a carboxylic acid?
(a) RCOOH
(b) RCOOR'
(c) RNH2
(d) RCONH2
7. Which of the following is an alcohol?
(a) CH3CH2OH
(b) CH3COOH
(c) CH3COOCH3
(d) CH3CH2NH2
8. How are alcohols formed?
(a) Oxidation of aldehydes
(b) Reaction of esters with water
(c) Hydration of alkenes
(d) Reduction of carboxylic acids
9. What is the general formula of an alcohol?
(a) RCOOH
(b) RCOOR'
(c) RNH2
(d) ROH
10. Which of the following is an aldehyde?
(a) CH3CH2OH
(b) CH3COOH
(c) CH3CHO
(d) CH3CH2NH2
Answer key:
1. c
2. b
3. b
4. b
5. a
6. a
7. a
8. c
9. d
10. c
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1. Who proposed the planetary model of the atom?
a) Ernest Rutherford
b) Niels Bohr
c) J.J. Thomson
d) James Chadwick
2. Which subatomic particle has a positive charge?
a) Electron
b) Proton
c) Neutron
d) Nucleus
3. What is the approximate mass of an electron?
a) 1 atomic mass unit (amu)
b) 1/2 atomic mass unit (amu)
c) 1/1836 atomic mass unit (amu)
d) 1836 atomic mass units (amu)
4. Which of the following is NOT a fundamental particle?
a) Quark
b) Lepton
c) Photon
d) Neutrino
5. Who discovered the existence of neutrons?
a) Ernest Rutherford
b) Niels Bohr
c) J.J. Thomson
d) James Chadwick
6. What is the maximum number of electrons that can occupy the first energy level of an atom?
a) 2
b) 4
c) 8
d) 16
7. What is the charge of an atom that has gained two electrons?
a) -1
b) -2
c) +1
d) +2
8. What is the atomic number of an atom?
a) The number of protons in the nucleus
b) The number of electrons in the nucleus
c) The total number of protons and neutrons in the nucleus
d) The total number of electrons in the atom
9. What is an isotope?
a) An atom with a different number of neutrons
b) An atom with a different number of protons
c) An atom with a different number of electrons
d) An atom with a different number of energy levels
10. Which of the following best describes the electron cloud model?
a) Electrons are arranged in discrete energy levels around the nucleus.
b) Electrons are located in specific orbits around the nucleus.
c) Electrons are spread out in a cloud-like region around the nucleus.
d) Electrons are confined to specific regions within the nucleus.
Answers:
1. b) Niels Bohr
2. b) Proton
3. c) 1/1836 atomic mass unit (amu)
4. c) Photon
5. d) James Chadwick
6. a) 2
7. b) -2
8. a) The number of protons in the nucleus
9. a) An atom with a different number of neutrons
10. c) Electrons are spread out in a cloud-like region around the nucleus.
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