Explanation

The quantum number that describes the shape of an electron in an atom is the azimuthal quantum number (l). 

Explanation

The functional group for a ketone is a carbonyl group (C=O), where the carbonyl carbon is bonded to two other carbon atoms.

Explanation

• The Fahrenheit scale has 180 divisions between the freezing point (32°F) and the boiling point (212°F) of water.
• This means that each degree Fahrenheit represents a temperature change of 1/180 of the range between the freezing and boiling points of water.

Explanation

• Carbonic anhydrase is an enzyme that plays a crucial role in aerobic respiration, specifically in the transport of carbon dioxide (CO2) in the blood.
• It helps to regulate the balance of CO2 and bicarbonate ions, which is essential for maintaining proper pH levels in the body.

Explanation

• The removal of the 7th electron from an element of Group VI of the periodic table needs three times more energy than the removal of the 6th electron.
• This is because the ionization energy increases as you remove more electrons from an atom, and this is due to the fact that the electrons that are left behind are more strongly attracted to the positive nucleus.

Explanation

Anisotropy is the property of being directionally dependent, meaning the substance behaves differently when measured along different directions, such as electrical conductivity.

Explanation

The p sub-shell does not exist in the first energy level (n=1). The first energy level only has an s sub-shell.

Explanation

• Atoms that gain electrons become negatively charged ions.
• These are known as Anions.

Explanation

 The common cultivated potato, Solanum tuberosum,

It has 48 chromosomes in its somatic cells (2n=4x=48).

This means it is a tetraploid species, with two sets of chromosomes derived from each of its two parents.

Therefore, the number of chromosomes in a potato's egg cell and in haploid somatic cells is 24. 

Explanation

Molar mass of CH₄ = 12 (C) + 4×1 (H) = 16 g/mol, so 16 g = 1 mole of CH₄.

At standard temperature and pressure (STP), 1 mole of any gas occupies 22.4 dm³, so CH₄ also occupies 22.4 dm³.