Explanation

With an increase in the number of unpaired electrons, paramagnetism increases. 

Paramagnetism is directly related to the presence of unpaired electrons.

More unpaired electrons mean a stronger magnetic field, hence a greater degree of paramagnetism. 

Explanation

 The enthalpy change during the formation of one mole of a compound from its elements in their standard states is called standard heat of formation. 

Explanation

The heavily doped region of a transistor is called the emitter.

The emitter's heavy doping ensures it injects a large number of charge carriers (electrons in NPN transistors, holes in PNP transistors) into the base region, which is crucial for the transistor's operation. 

Explanation

After ovulation, the ruptured follicle forms a structure called the corpus luteum, which produces large amounts of progesterone.

This hormone is crucial for preparing the uterine lining for potential pregnancy if fertilization occurs. 

Explanation

- Akbar < Mehmood  

- Ayaz > Mehmood  

- Zubair < Ayaz  

So the order is: Akbar < Mehmood < Ayaz, and Zubair is younger than Ayaz (could be younger or older than Mehmood or Akbar, but younger than Ayaz).

Hence, Ayaz is the oldest. 

Explanation

 The endocrine gland that secretes oxytocin is the Pituitary gland. 

While oxytocin is produced in the hypothalamus,

It is stored and released by the posterior pituitary gland. 

Explanation

In a closed organ pipe, the fundamental frequency is f = v / 4L.  

If both ends are opened, it behaves like an open pipe, and the fundamental frequency becomes f' = v / 2L.

So, f' = 2f.

Explanation

The reverse process of X-ray production is related to the "photoelectric effect". 

Photoelectric effect: In this process, a high-energy photon interacts with an atom, transferring all its energy to an electron and ejecting it from the atom.

This is the reverse of X-ray production, where electrons are accelerated to high speeds and generate X-rays when they collide with a target atom. 

Explanation

An equilibrium constant expression can be applied to an aqueous solution of table salt. 

Explanation:

An equilibrium constant expression is used for reversible reactions where the concentrations of reactants and products reach a constant state.

Table salt (sodium chloride) dissociates into Na+ and Cl- ions in water, and this dissociation can be considered a reversible reaction. Thus, the equilibrium constant can be applied to this system. 

Explanation

Lactic acid is not an amino acid; glutamic acid, aspartic acid, and glycine are all amino acids. 

Lactic acid:

This is an organic compound involved in energy metabolism, but it does not have the characteristic structure of an amino acid.