Explanation

Explanation

In 1-butyne, the hydrogen is attached to a carbon with a triple bond (sp hybridization), which makes it more acidic because the carbon can better stabilize the negative charge formed after losing the hydrogen ion.

Explanation

The correct idiom is "casting pearls before swine," which means offering something valuable to those who won’t appreciate it.

"Swine" refers to pigs in a figurative, biblical context.

Explanation

Catastrophic means کسی ایسی چیز کے لئے جس سے بہت زیادہ نقصان یا تباہی ہو

Disastrous means اہم نقصان یا بربادی کا سبب بن رہا ہے

Explanation

Chlorophyll, the pigment responsible for photosynthesis in plants, features a porphyrin ring structure at its core.

This ring is composed of four smaller pyrrole rings linked by methine bridges.

A magnesium ion is centrally located within this porphyrin ring, held in place by bonds with nitrogen atoms from the pyrrole rings.

Explanation

In bryophytes, the gametophyte generation is dominant.

This means the leafy, green, haploid structure that is typically seen is the gametophyte, which is the most visible and longest-lived part of the bryophyte life cycle.

The diploid sporophyte is generally smaller and dependent on the gametophyte for survival.

Explanation

The cell wall of oomycetes is made of cellulose. 

Oomycetes, also known as water molds, are distinct from true fungi in that their cell walls are composed primarily of cellulose and glucans, rather than chitin which is the primary component of fungal cell walls.

Explanation

Explanation

Molecular crystals are generally soft and stable.

They are composed of molecules held together by relatively weak intermolecular forces, which results in them being easily deformed and having low melting points.

While they are generally stable under normal conditions, they can become unstable under extreme temperatures or pressures.

Explanation

Emission spectrum is produced when a substance emits light/radiation, showing specific wavelengths.