What is the main difference between organic and inorganic compounds?
a) Organic compounds always contain oxygen
b) Organic compounds contain carbon-hydrogen bonds
c) Inorganic compounds are always soluble in water
d) Organic compounds are always gases
Which of the following is an example of an inorganic compound?
a) Methane (CH₄)
b) Glucose (C₆H₁₂O₆)
c) Sodium chloride (NaCl)
d) Ethanol (C₂H₅OH)
Which element is always present in organic compounds?
a) Oxygen
b) Hydrogen
c) Carbon
d) Nitrogen
Which type of bond is most common in organic compounds?
a) Ionic bond
b) Covalent bond
c) Metallic bond
d) Hydrogen bond
What is the general formula of alkanes?
a) CₙH₂ₙ
b) CₙH₂ₙ₊₂
c) CₙH₂ₙ₋₂
d) CₙH₂ₙ₊₁OH
Which of the following is an example of an organic acid?
a) Hydrochloric acid (HCl)
b) Acetic acid (CH₃COOH)
c) Sulfuric acid (H₂SO₄)
d) Nitric acid (HNO₃)
Which compound is considered inorganic?
a) Benzene (C₆H₆)
b) Carbon dioxide (CO₂)
c) Propane (C₃H₈)
d) Butanol (C₄H₉OH)
What is the simplest organic compound?
a) Methane (CH₄)
b) Ethanol (C₂H₅OH)
c) Carbon monoxide (CO)
d) Sodium bicarbonate (NaHCO₃)
Which class of organic compounds contains a hydroxyl (-OH) functional group?
a) Aldehydes
b) Alcohols
c) Ketones
d) Ethers
Which of the following is an example of a saturated hydrocarbon?
a) Ethene (C₂H₄)
b) Ethyne (C₂H₂)
c) Propane (C₃H₈)
d) Benzene (C₆H₆)
Which of the following inorganic compounds is commonly found in bones and teeth?
a) Sodium chloride
b) Calcium phosphate
c) Ammonium sulfate
d) Potassium nitrate
Which functional group is found in aldehydes?
a) -OH
b) -COOH
c) -CHO
d) -NH₂
Which of the following hydrocarbons is unsaturated?
a) Methane
b) Ethene
c) Propane
d) Butane
Which inorganic compound is essential for respiration?
a) Carbon dioxide
b) Water
c) Oxygen
d) Ammonia
Which type of reaction is common in organic chemistry?
a) Redox reaction
b) Addition reaction
c) Acid-base reaction
d) Precipitation reaction
Which of the following is a property of most inorganic compounds?
a) High melting and boiling points
b) Low solubility in water
c) Highly flammable
d) Composed of carbon chains
Which compound is NOT an organic compound?
a) Ethanol
b) Glucose
c) Sodium hydroxide
d) Propane
Which of the following is an ester?
a) CH₃COOH
b) CH₃COOCH₃
c) CH₃CHO
d) CH₃NH₂
Which of these is an example of an amine?
a) CH₃CH₂OH
b) CH₃COOH
c) CH₃NH₂
d) CH₄
Which inorganic compound is commonly used as a disinfectant?
a) Carbon dioxide
b) Ammonia
c) Hydrogen peroxide
d) Methanol
What type of compound is benzene?
a) Alkyne
b) Alkane
c) Aromatic hydrocarbon
d) Carboxylic acid
What is the functional group in carboxylic acids?
a) -OH
b) -CHO
c) -COOH
d) -NH₂
Which of the following is an example of an inorganic polymer?
a) DNA
b) Proteins
c) Polysiloxane
d) Starch
Which type of organic reaction involves the loss of water to form a bond?
a) Hydrolysis
b) Addition
c) Dehydration synthesis
d) Substitution
Which of these compounds contains a ketone functional group?
a) CH₃COCH₃
b) CH₃CHO
c) CH₃COOH
d) CH₃CH₂OH
Which of the following is NOT a property of most organic compounds?
a) Low boiling points
b) High flammability
c) Solubility in water
d) Covalent bonding
Which of the following is an important inorganic compound in fertilizers?
a) Urea
b) Ammonium nitrate
c) Glucose
d) Methanol
What type of isomerism is exhibited by butane and isobutane?
a) Geometrical
b) Structural
c) Optical
d) Functional
Which of the following is NOT an organic functional group?
a) -OH
b) -COOH
c) -Cl
d) -NH₂
