Explanation

 Sweet peas are annual climbing plants with fragrant, butterfly-shaped flowers. 

They are part of the genus Lathyrus within the Fabaceae family. 

The name Lathyrus is derived from the Greek word for "pea," and odoratus means "scented". 

They are cultivated for their beautiful and fragrant flowers.

Explanation

A protostome is an animal where the first opening that forms during embryonic development (the blastopore) becomes the mouth.

While the second opening develops into the anus. 

Explanation

To prepare 250 cm³ (or 250 mL) of a 1 M NaOH solution, you need 10 grams of NaOH.

This is because the molar mass of NaOH is 40 g/mol, and a 1 M solution contains 1 mole of solute per liter of solution.

Therefore, 250 mL (0.25 L) of a 1 M solution would require 0.25 moles of NaOH, which translates to 10 grams (0.25 moles * 40 g/mol). 

Explanation

The correct unit of the rate constant for a zero-order reaction is mol dm⁻³ s⁻¹ or mol L⁻¹ s⁻¹. 

Explanation

Standard enthalpy change is measured at a defined pressure of 101 kPa (or 1 bar, according to Testbook.com) and a temperature of 298 K (25°C). 

Explanation

The pH of a mixture of CH₃COONa (sodium acetate) and CH₃COOH (acetic acid) is C. <7. 

This mixture forms a buffer solution, where the weak acid (CH₃COOH)

Its conjugate base (CH₃COO-) is present together, resulting in a pH that is less than 7 (acidic) but not extremely so

Explanation

The formula for calculating the density of an ideal gas is d = PM/RT, where: 

• d: is the density of the gas
• P: is the pressure of the gas
• M: is the molar mass of the gas
• R: is the ideal gas constant
• T: is the temperature of the gas in Kelvin

The ideal gas law is expressed as PV = nRT, where 'n' is the number of moles.

Density (d) is mass (m) divided by volume (V), so d = m/V.

We can relate the number of moles (n) to mass (m) and molar mass (M) using n = m/M.

Substituting this into the ideal gas law, we get PV = (m/M)RT.

Rearranging the equation to solve for density (d = m/V), we get d = PM/RT. 

Explanation

A strong oxidizing agent has a greater Reduction potential. 

An oxidizing agent readily accepts electrons, which corresponds to a high reduction potential.

A higher reduction potential indicates a greater tendency for a substance to be reduced (gain electrons) and thus act as an oxidizing agent. 

Explanation

The enzyme that converts sucrose into glucose and fructose is called invertase

It is also known as sucrase or beta-fructofuranosidase.

This process is known as hydrolysis, where water is used to break the glycosidic bond between glucose and fructose in sucrose.

Explanation

The phenomenon where a chemical element exists in multiple crystalline forms is called allotropy

Allotropy refers to the ability of an element to exist in two or more different forms in the same physical state.

This is different from polymorphism, which is a broader term referring to any substance (not just elements) that can exist in multiple crystalline forms.