Strengthen your basics with 12th Class Chemistry Chapter 7 MCQs on Organic Chemistry. Cover topics like bonding, isomerism, and reaction mechanisms. Trending keywords like organic chemistry quiz, fundamentals MCQs, and reaction mechanism prep are included for enhanced learning and ranking.
Which of the following elements is the backbone of organic compounds?
a) Hydrogen
b) Carbon
c) Oxygen
d) Nitrogen
How many valence electrons does a carbon atom have?
a) 2
b) 4
c) 6
d) 8
What is the general formula for alkanes?
a) CnH2n
b) CnH2n+2
c) CnH2n-2
d) CnH2n-4
Which type of bond is formed between two carbon atoms in organic compounds?
a) Ionic bond
b) Hydrogen bond
c) Covalent bond
d) Metallic bond
How many sigma (σ) bonds are present in a molecule of ethane (C2H6)?
a) 1
b) 2
c) 3
d) 4
Which of the following functional groups contains a carbon-oxygen double bond?
a) Alkane
b) Alkene
c) Alkyne
d) Alcohol
What is the name of the functional group with the formula -OH?
a) Alkane
b) Alkene
c) Alkyne
d) Alcohol
How many pi (π) bonds are present in a molecule of propene (C3H6)?
a) 1
b) 2
c) 3
d) 4
What is the general formula for alcohols?
a) CnH2n
b) CnH2n+2
c) CnH2n-1
d) CnH2n+1OH
Which of the following is the IUPAC name for CH3-CH2-CH3?
a) Propane
b) Ethane
c) Butane
d) Methane
How many hydrogen atoms are present in a molecule of butane (C4H10)?
a) 4
b) 8
c) 10
d) 12
Which of the following is the molecular formula for benzene?
a) C6H6
b) C6H12
c) C6H10
d) C6H8
What is the name of the compound CH3-CH2-OH?
a) Ethanol
b) Methanol
c) Propanol
d) Butanol
What is the name of the compound CH3-CH2-CHO?
a) Propanone
b) Ethanal
c) Butanal
d) Methanal
Which of the following is an example of an aldehyde functional group?
a) -OH
b) -COOH
c) -CHO
d) -NH2
What is the name of the compound CH3-CH2-COOH?
a) Propanoic acid
b) Ethanoic acid
c) Butanoic acid
d) Methanoic acid
What is the name of the compound CH3-CO-CH3?
a) Propanone
b) Ethanol
c) Methanol
d) Butanal
What is the functional group of carboxylic acids?
a) -OH
b) -COOH
c) -CHO
d) -NH2
What is the name of the compound CH3-CH2-CH2-CH2-CH3?
a) Pentane
b) Ethane
c) Butane
d) Propane
Which of the following is the IUPAC name for CH3-CH2-CH2-OH?
a) Propane
b) Ethanol
c) Methanol
d) Butanol
How many carbon atoms are present in a molecule of hexane (C6H14)?
a) 4
b) 5
c) 6
d) 7
What is the molecular formula for butene?
a) C4H10
b) C4H8
c) C4H6
d) C4H12
Which of the following is the IUPAC name for CH3-CH2-COOH?
a) Ethanoic acid
b) Propanoic acid
c) Butanoic acid
d) Methanoic acid
How many pi (π) bonds are present in a molecule of ethyne (C2H2)?
a) 1
b) 2
c) 3
d) 4
What is the name of the compound CH3-CH2-CH2-CHO?
a) Propanone
b) Ethanal
c) Butanal
d) Methanal
What is the molecular formula for ethene?
a) C2H2
b) C2H4
c) C2H6
d) C2H8
Which of the following is an example of a ketone functional group?
a) -OH
b) -COOH
c) -CHO
d) -NH2
What is the name of the compound CH3-CO-CH3?
a) Propanone
b) Ethanol
c) Methanol
d) Butanal
What is the functional group of ketones?
a) -OH
b) -COOH
c) -CHO
d) -NH2
What is the name of the compound CH3-CH2-OH?
a) Ethanol
b) Methanol
c) Propanol
d) Butanol
How many carbon atoms are present in a molecule of octane (C8H18)?
a) 6
b) 7
c) 8
d) 9
What is the molecular formula for propene?
a) C3H6
b) C3H8
c) C3H10
d) C3H4
What is the name of the compound CH3-CO-CH3?
a) Propanone
b) Ethanol
c) Methanol
d) Butanal
What is the molecular formula for methanol?
a) C1H2
b) C1H4
c) C1H3
d) C1H6
Which of the following is the IUPAC name for CH3-CH2-CH3?
a) Propane
b) Ethane
c) Butane
d) Methane
What is the molecular formula for propane?
a) C3H6
b) C3H8
c) C3H10
d) C3H4
What is the name of the compound CH3-CH2-CH2-CH3?
a) Pentane
b) Ethane
c) Butane
d) Propane
What is the molecular formula for butane?
a) C4H8
b) C4H10
c) C4H12
d) C4H6
Which of the following is the IUPAC name for CH3-CH2-CH2-OH?
a) Propane
b) Ethanol
c) Methanol
d) Butanol
What is the name of the compound CH3-CH2-CH2-CHO?
a) Propanone
b) Ethanal
c) Butanal
d) Methanal
What is the molecular formula for pentane?
a) C5H12
b) C5H8
c) C5H10
d) C5H14
How many pi (π) bonds are present in a molecule of ethene (C2H4)?
a) 1
b) 2
c) 3
d) 4
What is the name of the compound CH3-CH2-CH3?
a) Propane
b) Ethane
c) Butane
d) Methane
What is the molecular formula for ethyne?
a) C2H2
b) C2H4
c) C2H6
d) C2H8
Which of the following is the IUPAC name for CH3-CH2-COOH?
a) Ethanoic acid
b) Propanoic acid
c) Butanoic acid
d) Methanoic acid
What is the molecular formula for methanol?
a) C1H2
b) C1H4
c) C1H3
d) C1H6
How many carbon atoms are present in a molecule of hexane (C6H14)?
a) 4
b) 5
c) 6
d) 7
What is the molecular formula for ethene?
a) C2H2
b) C2H4
c) C2H6
d) C2H8
What is the name of the compound CH3-CH2-OH?
a) Ethanol
b) Methanol
c) Propanol
d) Butanol
Which of the following is the IUPAC name for CH3-CH2-CH2-CH3?
a) Propane
b) Ethane
c) Butane
d) Methane
How many carbon atoms are present in a molecule of octane (C8H18)?
a) 6
b) 7
c) 8
d) 9
What is the molecular formula for propene?
a) C3H6
b) C3H8
c) C3H10
d) C3H4
What is the name of the compound CH3-CO-CH3?
a) Propanone
b) Ethanol
c) Methanol
d) Butanal
What is the molecular formula for methanol?
a) C1H2
b) C1H4
c) C1H3
d) C1H6
What is the name of the compound CH3-CH2-CH2-CH3?
a) Pentane
b) Ethane
c) Butane
d) Propane
What is the molecular formula for propane?
a) C3H6
b) C3H8
c) C3H10
d) C3H4
What is the name of the compound CH3-CH2-CH2-CHO?
a) Propanone
b) Ethanal
c) Butanal
d) Methanal
What is the molecular formula for butane?
a) C4H8
b) C4H10
c) C4H12
d) C4H6
Which of the following is the IUPAC name for CH3-CH2-CH2-OH?
a) Propane
b) Ethanol
c) Methanol
d) Butanol
What is the name of the compound CH3-CH2-CH2-CHO?
a) Propanone
b) Ethanal
c) Butanal
d) Methanal
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