Explanation

Methylamine and hydrogen peroxide are liquids due to Hydrogen bonding. 

Hydrogen bonding is a strong type of intermolecular force

That occurs when a hydrogen atom is bonded to a highly electronegative atom 

Like oxygen, nitrogen, or fluorine. In methylamine (CH3NH2)

The nitrogen atom has a lone pair of electrons and can form hydrogen bonds with other methylamine molecules.

Similarly, hydrogen peroxide (H2O2) has hydrogen atoms bonded to oxygen atoms, allowing for hydrogen bonding.

These strong hydrogen bonds hold the molecules together in the liquid state. 

Explanation

The property that does not depend on the nature of the solute molecule is the Colligative property. 

Colligative properties depend solely on the number of solute particles present in a solution, not their identity or chemical nature. 

Explanation

Explanation

Macromolecules are large, complex molecules composed of smaller repeating units called monomers.

Thyroxin, haemoglobin, and insulin are all proteins, which are macromolecules made up of chains of amino acids.

Maltose, on the other hand, is a disaccharide, meaning it's made up of only two sugar units (glucose) and is not considered a true macromolecule. 

Explanation

 Molecular mass of water (H₂O) = 2(1) + 16 = 18 g/mol

- This means 18 grams of water contains 1 mole of water molecules.  

Explanation

In an atom, no two electrons can have the same set of four quantum numbers.

This is known as the Pauli Exclusion Principle.

The four quantum numbers are: 

Explanation

The total energy of a hydrogen atom in its ground state is negative. 

The energy of a hydrogen atom in its ground state is typically represented as -13.6 eV.

A negative energy value indicates that the electron is bound to the nucleus and requires energy to be overcome to escape.

The ground state is the lowest energy level an electron can occupy in a hydrogen atom. 

Explanation

Escape velocity depends on the mass and radius of a planet.  

   - Mercury has the lowest mass and smallest radius, hence the least escape velocity.  

Explanation

Tactile receptors, also known as Meissner's corpuscles,

They are highly concentrated in the glabrous skin (hairless skin) of the palms, fingertips, and soles, allowing for fine touch and sensitivity to light pressure. 

Explanation

 Though fluorine is more electronegative, chlorine has the highest electron affinity due to less electron-electron repulsion.