Acetic acid (CH3COOH) is a weak acid, while HCl, H2SO4, and HNO3 are strong acids.

Formic acid (HCOOH) is stronger than acetic acid (CH3COOH).

Formic acid (HCOOH) is stronger than acetic acid and other listed acids.

Butan-1-ol has the highest boiling point due to its longer carbon chain and stronger hydrogen bonding.

Methanol is the most acidic among the given alcohols due to the absence of steric hindrance.

Methanol is the most acidic among the given alcohols due to its smaller size and higher electronegativity.

Isobutane is a branched alkane.

Butane has a higher density than water.

C6H14 (hexane) has a molecular weight of approximately 86 g/mol, while C7H16 (heptane) has a molecular weight of approximately 100 g/mol. The closest is C6H14.

Butane has the highest boiling point among the given alkanes due to its larger molecular size.

Methane has the lowest density among the given alkanes.

Methane (CH4) has the lowest molecular weight among the given alkanes.

Methane is a gas at room temperature.

Isobutane is a branched alkane, while butane, pentane, and hexane are straight-chain alkanes.

Butane is the least branched alkane among the options.

Methane is the least soluble in water due to its nonpolar nature.

Pentene has the highest boiling point due to its larger molecular size and increased van der Waals forces.

2-methylpropene is more reactive towards electrophilic addition due to steric hindrance being lower compared to other options.

2-Butene is more stable than 1-Butene due to hyperconjugation and steric hindrance.

2-Butene is more stable than 1-Butene due to hyperconjugation and steric factors.

2-butyne is a symmetrical alkyne.

Acetylene (ethyne) is the most acidic among the given alkynes due to the sp hybridization of carbon.

2-butyne is more stable than 1-butyne due to steric hindrance and hyperconjugation.

Ethyne (C2H2) is the simplest alkyne.

All types of amines can form hydrogen bonds with water due to the presence of the nitrogen atom.

Primary amines can form hydrogen bonds due to the presence of a hydrogen atom attached to the nitrogen.

Aniline has the highest boiling point due to its ability to form strong hydrogen bonds.

Methylamine is a strong base compared to the others due to the lack of resonance stabilization of the lone pair.

Aniline is an aromatic amine because it contains a benzene ring.

Tert-butylamine is least soluble in water due to its bulky structure which hinders hydrogen bonding.