Which of the following reactions is the metal displacement reaction? Choose the right option.
Which of the following reactions is the metal displacement reaction? Choose the right option.
Noble gases have large positive values of electron gain enthalpy
Noble gases are sparingly soluble in water
Noble gases have very high melting and boiling points
Noble gases have weak dispersion forces
The Correct Option is C
Solution and Explanation
The correct answer is option (C) : Noble gases have very high melting and boiling points
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Concepts Used:
Rate of a Chemical Reaction
The rate of a chemical reaction is defined as the change in concentration of any one of the reactants or products per unit time.
Consider the reaction A → B,
Rate of the reaction is given by,
Rate = −d[A]/ dt=+d[B]/ dt
Where, [A] → concentration of reactant A
[B] → concentration of product B
(-) A negative sign indicates a decrease in the concentration of A with time.
(+) A positive sign indicates an increase in the concentration of B with time.
Factors Determining the Rate of a Reaction:
There are certain factors that determine the rate of a reaction:
- Temperature
- Catalyst
- Reactant Concentration
- Chemical nature of Reactant
- Reactant Subdivision rate