Explanation

• C₄H₆O most likely belongs to the Aldehyde or Ketone class.
• The formula indicates two degrees of unsaturation, which can include a carbonyl group (C=O).
• Aldehydes and ketones commonly contain this functional group.

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Explanation

Moles needed = 0.5 × 0.1 = 0.05 mol

Molar mass of CaCl₂ = 111 g/mol

Required mass = 0.05 × 111 = 5.55 g

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Explanation

• Amino acids are the building blocks of proteins.
• Proteins are formed when amino acids join together by peptide bonds.
• Proteins are essential for growth, repair, and body functions.
• There are 20 standard amino acids used to make proteins.

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Explanation

• Nitrogen (N₂): 78%

Additional information:

• Oxygen (O₂): 21%
• Argon (Ar): 0.93%
• Carbon dioxide (CO₂): ~0.04%
• Other gases: ~0.03%

Last verified on 16-05-2026

Explanation

• Alkynes → Triple bond (C≡C)
• Example of an alkyne: Ethyne (Acetylene, C₂H₂)

Additional information:

• Alkanes → Single bond (C–C)
• Alkenes → Double bond (C=C)

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