Chemical Equilibrium:

Sulphur dioxide is used to manufacture_____________

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

Nitrogen is used to prepare _______________

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

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

In chemical reactions the substances that combine are called _________

Which type of reactions take place in both directions?

In an irreversible reaction dynamic equilibrium ______

There are ___________possibilities of predicting extent of reaction.

The %age of nitrogen and oxygen in our atmosphere is_________

In extent of reaction, the reaction goes to completion have__________

Which type of reactions speed up gradually?

When the magnitude of Kc is very large it indicates___________

The units of molar concentration_____________

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

Which Option is Correct ?

At equilibrium the rate of forward and reverse reaction becomes_____

Point out the co efficient in the following hypothetical reaction

2A+3 D   —>   4C+8D

The two major components of atmosphere are ___________

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

The characteristics of reversible reactions are the following except____

Which is the king of chemicals?

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

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 ?

Reverse reactions gradually ______________

At dynamic equilibrium__________

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

Reaction in which reactants react to form products called__________

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_________

Reversible reaction____________

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

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

An equilibrium is achievable only in ___________________

When CaO reacts with CO₂ they produce_________

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

Which Option is Correct?

At initial stage the rate of forward reaction is______________

When H₂ and O₂ combine they form__________

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

Select Correct Option?

Reaction quotient is expressed as_____________

Name the reactants in this equation

2H₂ +O₂   —> 2H₂O

• H₂O
• H₂ & O₂
• O₂
• None of these

Select One Options

Forward reaction takes place from______________

When the reaction ceases to proceed, it is called_________

The Color of hydrogen iodide is___________

There are ____________ characteristics of dynamic Equilibrium.

In direction of a reaction, reaction proceeds forward then______________

When the magnitude of Kc is very small it indicates_____________

The oxidation of carbon monoxides goes to completion at _____________

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 type of reactions do not go to completion?

Many environmental systems depend for their_____________

Nitrogen and oxygen constituents ________of the atmosphere

Gases are being used to manufacture____________

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 ?

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_________

Dynamic means, reaction is__________

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

• N₂
• O₂
• Cl₂
• S

Which Option is Correct ?

The forward reaction takes place__________

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

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

The color of iodine is______

By knowing the value of equilibrium constant ____________can be predicted.

In direction of a reaction, reaction is at equilibrium then_____________

Reverse reaction take place from____________

In direction of a reaction, reaction proceeds reverse then___________

When H₂ and I₂ combine they form ____________

• H_2O
• HI
• I₂
• H₂ & I₂

which Option is Correct ?

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

Equilibrium constant value “Kc” is equal to__________

Numerical value of Kc predicts_____________

Irreversible reaction consists of_________

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

When a system is at equilibrium states?

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

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

Which gas is used to prepare ammonia?

• N₂
• O₂
• Cl₂               
• S

Which Option is Correct ?

There are ___________ possibilities at equilibrium state.

A reverse reaction is one that_______

When a reaction ceases to proceed further, it is called_____________

The characteristics of inversible reaction are the following except_____________

Which chemical is called king of chemicals?

• KNO₃
• H₂SO₄
• HCl
• NHO₃

Which Option is Correct ?

Ammonia gas is used to manufacture__________

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

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

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

There are ___________possibilities of predicting extent of reaction.

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

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

Reversible reactions take place in__________

In the beginning, the reverse reactions are ________

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 ____________

There are ___________major components of atmosphere.

Oxygen is used to prepare_______________