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.

Dimethylamine is the most basic due to the electron-donating effect of the two methyl groups, which increases the electron density on the nitrogen.

Dimethylamine is the most basic due to the electron-donating effect of the two methyl groups, which increases the availability of the lone pair on nitrogen.

Cysteine is the amino acid that contains a sulfur atom in its side chain, which can form disulfide bonds.

Lysine is an essential amino acid that must be obtained through the diet, while glycine, alanine, and serine can be synthesized by the body.

Leucine is an essential amino acid that must be obtained through diet.

The Mesopotamian Civilization is known for its advanced agricultural practices, including the development of irrigation systems and crop rotation techniques.

The Indus Valley Civilization is known for its sophisticated urban planning and drainage systems, which were crucial for managing floods.

The Indus Valley Civilization, which flourished around 2500 BCE, is renowned for its sophisticated urban planning, including well-structured cities like Harappa and Mohenjo-Daro, featuring advanced drainage systems.

The Arthashastra, written by Kautilya, discusses economic policies and governance, emphasizing the need for inclusive growth to ensure stability and prosperity in society.

The Mahabharata, while primarily a narrative epic, contains numerous references to the interactions and cultural exchanges between ancient India and its neighboring regions, including Persia and Central Asia.

Butterflies are insects and belong to the class Insecta, characterized by having three pairs of legs and usually two pairs of wings.

Whales, particularly baleen whales, are filter feeders that consume small organisms by filtering water through their baleen plates.

Jellyfish are examples of cnidarians, which are known for their stinging cells called cnidocytes.

Goldfish are classified as bony fish, belonging to the class Osteichthyes, which have a skeleton made of bone.

Frogs are classified as amphibians, which are known for their dual life in water and on land.

Earthworms belong to the phylum Annelida, which is characterized by segmented bodies.

Phylum Chordata includes animals that possess a notochord at some stage of their development, such as sharks.

The Vijayanagara Empire is known for its distinctive Dravidian architectural style, characterized by intricate carvings and towering gopurams.

The Gothic architectural style is known for its pointed arches, ribbed vaults, and flying buttresses, which allowed for taller structures and larger windows.

Digital Art is a contemporary form of art that emerged with technology and is not associated with the Renaissance period, which focused on traditional techniques like oil painting and fresco.