Explanation

The missing letter is O, which completes the sequence of English vowels: A, E, I, O, U. 

Explanation

A railway station is a facility that has railway tracks or lines for trains to carry passengers or goods from one place to another.

Explanation

Uncle, Son, and Father all are male gender

but mother is different from all three, mother is female gender 

Explanation

A catalyst affects the rate of reaction only. 

A catalyst speeds up the rate of a reaction by lowering the activation energy required,

But it does not change the equilibrium position or the yield of products. 

Explanation

A catalyst speeds up the rate of reaction but does not affect the position of equilibrium.

Temperature, pressure, and concentration can shift the equilibrium position of a reversible reaction.

Explanation

A catalyst is a substance that speeds up a chemical reaction without being consumed or altered.

Catalysts increase the rate of reaction by lowering the activation energy required for the reaction to occur.

Explanation

The rate of a reaction is defined as the change in concentration of a reactant or product per unit of time. 

Rate of reaction:

Measures how fast a reaction proceeds, indicating how quickly reactants are consumed and products are formed.

Change in concentration (Δconcentration):

Refers to the difference in concentration of a substance (reactant or product) between two points in time.

Change in time (Δtime):

Represents the time interval over which the concentration change occurs.

Δconcentration / Δtime:

This formula calculates the rate of reaction. A positive value indicates product formation, while a negative value indicates reactant consumption. 

Explanation

The unit of a rate constant is derived from the rate law equation, which relates the rate of a reaction to the concentrations of the reactants raised to their respective orders. 

Explanation

Activation energy represents the energy barrier that reactants must overcome to transition into products, and it's the minimum amount of energy required for this to happen. 

Explanation

Reduction:

• Gain electrons
• Oxidation state lowers
• Always paired with oxidation (redox)
• Oxidizing agent gets reduced

Additional information 

Oxidation is the chemical process of:

• Losing electrons
• Oxidation state increases
• Always paired with reduction (together form redox)
• Reducing agent gets oxidized (it gives up the electrons)