Question 1: Which of the following statement is true about the chemical reaction at equilibrium

Equilibrium is dynamic in nature
Equilibrium is static in nature
Reaction will be completed
none of these

Question 2: For a chemical reaction at equilibrium the rate of forward reaction and backward reaction are

different
same
not possible to estimate
diverse

Question 3: Which of the following reaction establish chemical equilibrium?

Formation of ammonia
Decomposition of calcium carbonate
Evaporation of water
Both a and b

Question 4: Identify the equilibrium reaction from the following

H2+O2→ H2O
HCl +NaOH →NaCl+H2O
N2+H2⇋2NH3
Both a and b

Question 5: Which of the following statement are true about chemical equilibrium

Equilibrium is possible only in a closed system at a given temperature.
Both the opposing processes occur at the same rate and there is a dynamic but stable condition.
All measurable properties of the system remain constant.
All of these