Explanation

A 10% (w/w) sugar solution means that 10 grams of sugar (the solute) is dissolved in 90 grams of water (the solvent), making a total of 100 grams of solution.

The percentage is calculated as:

(10 g sugar / 100 g total) × 100% = 10% (w/w)

So, 10 grams of sugar is dissolved in 90 grams of water.

Explanation

A diatomic molecule is a molecule composed of two atoms, either of the same element (homogeneous) or different elements (heterogeneous).

Examples of diatomic molecules include:

• Hydrogen (H2)
• Oxygen (O2)
• Nitrogen (N2)

Explanation

In a homogeneous solution, the particles are uniformly distributed and do not scatter light, allowing it to pass through easily.

Explanation

Kerosene oil is used as jet fuel, commonly known as Jet-A or Jet-A1.

It has a high energy density and good combustion properties suitable for aircraft engines.

Explanation

The carboxylate end of a soap molecule (-COO-) is hydrophilic (water-loving), meaning it is attracted to water.

This end of the molecule is negatively charged and is able to form hydrogen bonds with water molecules, which are polar and also have a slightly positive charge.

Explanation

The L shell, also known as the second electron shell, has 02 subshells:

The L shell contains two subshells - 2s, 2p.

The M shell contains three subshells - 3s, 3p, 3d.

The N shell contains four subshells - 4s, 4p, 4d, 4f

Explanation

• Neutrons are the most penetrating, because they have no charge and a relatively large mass compared to electrons and protons.
• This allows them to travel long distances through matter without being deflected or absorbed, making them highly penetrating.

Explanation

 The oxidation of hypo (chlorous acid) to 1-butanone does not give 1-butanol or 2-chloro-1-butanol, so the correct answer is  None of the above. 

Hypochlorous acid (HOCl) is an oxidizing agent , but it does not convert 1-butanone (a ketone) back to an alcohol (1-butanol). 

The reaction of HOCl with 1-butene would result in the addition of chlorine and hydroxyl groups to the double bond, forming 2-chloro-1-butanol, not 1-butanol. 

Explanation

 The element that has the same oxidation number in all its compounds is Fluorine. 

Fluorine is the most electronegative element, so it always has an oxidation number of -1 in all its compounds

Explanation

Imprinting is a fascinating example of how both genetic predisposition and environmental factors interact to shape an animal's behavior.

Genetically, young animals are predisposed to form strong attachments during a critical period early in life.

However, the specific object they imprint on (usually their mother) is entirely determined by their environment during this sensitive window.

If a duckling is separated from its mother and exposed to a human shortly after hatching, it will imprint on the human and follow it around instead.

This demonstrates how a genetically programmed behavior (imprinting) is shaped by the specific environmental stimuli encountered during a critical developmental period.