Chemical Equilibrium:

The lives of aquatic animals and plants are indirectly related to concentration of ___________ dissolved in water.

When the magnitude of Kc is very small it indicates_____________

When a reaction ceases to proceed further, it is called_____________

In extent of reaction, the reaction goes to completion have__________

Guldburg and Waage’s put forward law of mas action in_______

In a chemical reaction, the substance that combine are called ________

At dynamic equilibrium__________

Point out the co efficient in the following hypothetical reaction

2A+3 D   —>   4C+8D

The units of molar concentration_____________

• Mol dm^-2
• mol dm^-1
• mol dm
• mol dm^-3

Which Option is Correct ?

The forward reaction takes place__________

The reaction in which the products can recombine to form reactants are called______

The reaction in which all the reactants have been converted into products are known as__________

Which type of reactions speed up gradually?

Reaction in which reactants react to form products called__________

Irreversible reaction represented by a ____________ between a reactant and a product.

Reversible reaction____________

Nitrogen and oxygen gasses are being used to manufacture chemicals, since the advent of_____ century

Which chemical is called king of chemicals?

• KNO₃
• H₂SO₄
• HCl
• NHO₃

Which Option is Correct ?

The characteristics of inversible reaction are the following except_____________

Sulphur dioxide is used to manufacture_____________

There are ___________possibilities of predicting extent of reaction.

In the beginning, the reverse reactions are ________

In the lime kiln, the reaction CaCO₃(g) —> CaO(g) + CO₂(g) goes to completion because____

• Of high temperature
• CaO is more stable then CaCO₃
• CO₂ escapes continuously
• CaO is not dissociated

Which Option is Correct

Reactions which have comparable amount of reactants and products at equilibrium state have_______

Equilibrium constant value “Kc” is equal to__________

When CaO reacts with CO₂ they produce_________

• CaCO₃
• CaCO₂
• Both CaCO₃ & CaCO₂
• None of these

Which Option is Correct?

Forward reaction takes place from______________

There are ___________major components of atmosphere.

As the numeric value of Qc (8.0) is less than Kc (57.0) then the reaction is not_____________

The ratio of product concentration of products raised to power of co-efficient to the products of reactant raised to the power co-efficient is known as_________

Rate of forward reactions takes place at the rate of reverse reaction, the composition of the reaction mixture remains constant is called ____________

The two major components of atmosphere are ___________

When a system is at equilibrium states?

An active mass is considered as the molar concentrations in units of__________

• mol dm^-3
• mol^-3 dm
• mol^-2 dm
• mol^-2 dm

Which Option is Correct ?

Nitrogen and hydrogen were reacted together to make ammonia N₂ + 3H₂ —> 2NH₃ where Kc=2.86mol^-2 dm⁶, what will be present in the equilibrium mixture?

• NH₃ only
• N₂, H₂ and NH₃
• N₂ and H₂ only
• H₂ only

Which Option is Correct ?

Irreversible reaction consists of_________

Which type of reactions take place in both directions?

Which one of the following statements is not correct about active mass?

Equilibrium Constant has no unit when number of moles of reactants and products are_____

For the reactions H₂ + I₂ —> 2HI, the reactions quotients for this reaction is___________

Which Option is Correct

Many environmental systems depend for their_____________

At equilibrium state the physical properties like density, color etc. are _____________

In direction of a reaction, reaction is at equilibrium then_____________

Reverse reaction take place from____________

At initial stage the rate of forward reaction is______________

Reverse reactions gradually ______________

Oxygen is used to prepare_______________

Nitrogen and oxygen constituents ________of the atmosphere

Numerical value of Kc predicts_____________

The color of iodine is______

Reaction quotient is expressed as_____________

In an irreversible reaction dynamic equilibrium ______

Name the reactants in this equation

2H₂ +O₂   —> 2H₂O

• H₂O
• H₂ & O₂
• O₂
• None of these

Select One Options

The two major components of atmosphere are ____________

Which type of reactions do not go to completion?

Gases are being used to manufacture____________

There are ____________ characteristics of dynamic Equilibrium.

Nitrogen is used to prepare _______________

When the magnitude of Kc is very large it indicates___________

In direction of a reaction, reaction proceeds reverse then___________

The %age of nitrogen and oxygen in our atmosphere is_________

The Color of hydrogen iodide is___________

The reaction quotient is useful because it predicts the direction of reaction by comparing the value of_______

In extent of reaction, the reaction never goes to completion, which have____________

For a reaction between PCI₃ and Cl₂ to form PCI₅, the units of Kc are______________

• Mol dm^-3
• mol^-1 dm^-3
• mol^-1dm³
• mol dm³

Which Option is Correct ?

Which is the king of chemicals?

The Name of the scientist who presented law of mass action is ______________

At equilibrium the rate of forward and reverse reaction becomes_____

When the reaction ceases to proceed, it is called_________

Dynamic means, reaction is__________

The reaction in which the products do not recombine to form reactants are called____________

By knowing the value of equilibrium constant ____________can be predicted.

The characteristics of reversible reactions are the following except____

Ammonia gas is used to manufacture__________

In direction of a reaction, reaction proceeds forward then______________

Which gas is used to manufacture king of chemicals sulphuric Acid?

• N₂
• O₂
• Cl₂
• S

Which Option is Correct ?

The oxidation of carbon monoxides goes to completion at _____________

There are ___________possibilities of predicting extent of reaction.

A reverse reaction is one that_______

Reversible reactions take place in__________

Which gas is used to prepare ammonia?

• N₂
• O₂
• Cl₂               
• S

Which Option is Correct ?

For reactions having large Kc Value, the reaction proceeds to _________

In chemical reactions the substances that combine are called _________

An equilibrium is achievable only in ___________________

There are ___________ possibilities at equilibrium state.

When H₂ and I₂ combine they form ____________

• H_2O
• HI
• I₂
• H₂ & I₂

which Option is Correct ?

When the rate of the forward reaction takes place at the rate of reverse reaction the composition of the reaction mixture remains constant it is called_________

When H₂ and O₂ combine they form__________

• H_2O
• H and O
• HO₂
• None of these

Select Correct Option?