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✅➡ Biology ⬇
EUEE Entrance exam BIOLOGY
▶️➡1356 Question with answer
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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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🕓 Time table for Grade 12 in 2016/2024
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An inelastic collision is one in which:Anonymous voting
- Momentum is conserved but kinetic energy is not conserved
- Neither kinetic energy nor momentum is conserved
- Total mass is not conserved but momentum is conserved
- Momentum is not conserved but kinetic energy is conserved
How money significants figures are there in this numbers 0.0005?Anonymous voting
- 5
- 1
- 4
- 3
Diopters is The Unit ofAnonymous voting
- Mutual inductance
- Frequence
- Powe of lens
- Intensity
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Correction:pressure in a liqiud at rest Does not depend on
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In a hydraulic press a force of 24N is applied to a smaller piston of area 0.4m2. What load will be supported by the larger piston whose area is 0.7m2?Anonymous voting
- 42N
- 24N
- 48N
- 84N
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