Reactions of Chemical Equilibrium

Q.

What is reversible reaction?

Q.

The rate of the forward reaction is equal to the rate of the backward reaction at chemical equilibrium.

1. True

2. False

Q.

Ammonium chloride, on heating, liberates a gas which turns red litmus to blue.

1. True

2. False

Q.

What will happen if silver bromide is kept for some time in sunlight?

Q.

Combustion reactions are reversible in nature.

1. True

2. False

Q.

Which of the following reaction is irreversible in nature?

1. $N{H}_{4}Cl\left(s\right)\leftrightharpoons N{H}_3\left(g\right)+HCl\left(g\right)$

2. $N_2\left(g\right)+3H_2\left(g\right)\leftrightharpoons 2N{H}_3\left(g\right)$

3. $C{H}_4\left(g\right)+2O_2\left(g\right)\to C{O}_2\left(g\right)+2H_{2}O\left(l\right)$

4. $2S{O}_2\left(g\right)+O_2\left(g\right)\leftrightharpoons 2S{O}_3\left(g\right)$

Q.

Which of the following reaction is irreversible in nature?

1. $2Na\left(s\right)+H_{2}O\left(l\right)\to 2NaOH\left(aq\right)+H_2\left(g\right)$

2. $2Mg\left(s\right)+O_2\left(g\right)\to 2MgO\left(s\right)$

3. $BaC{l}_2\left(aq\right)+H_{2}S{O}_4\left(aq\right)\to BaS{O}_4\left(s\right)+2HCl\left(aq\right)$

4. $N_2\left(g\right)+3H_2\left(g\right)\leftrightharpoons 2N{H}_3\left(g\right)$

Q.

Which of the following reaction is reversible in nature?

1. ${\text{CH}}_4\text{(g)}+2{\text{O}}_2\text{(g)}\to {\text{CO}}_2\text{(g)}+{\text{2H}}_2\text{O (l)}$

2. ${\text{BaCl}}_2\text{(aq)}+{\text{H}}_2{\text{SO}}_4\text{(aq)}\to {\text{BaSO}}_4\text{(s)}+\text{2HCl (aq)}$

3. $2\text{Na (s)}+{\text{H}}_2\text{O (l)}\to 2\text{NaOH (aq)}+{\text{H}}_2\text{(g)}$

4. ${\text{NH}}_4\text{Cl (s)}\leftrightharpoons {\text{NH}}_3\text{(g)}+\text{HCl(g)}$

Q. Ammonium hydroxide is added in excess to a solution of copper sulfate. What type of reaction is it?

Q. Choose the correct statement regarding the reaction given below:

${\text{Fe(NO}}_3{)}_3\text{(aq)}+3\text{KCNS (aq)}\leftrightharpoons {\text{Fe(CNS)}}_3\text{(aq)}+3{\text{KNO}}_3\text{(aq)}$

1. The given reaction is reversible in nature.
2. The given reaction is irreversible in nature.
3. Formation of ferric thiocyanate takes place in two stages.
4. The red colour of the product is due to potassium nitrate.

Q. Which of the following behaves as an irreversible reaction when conducted in a closed vessel?

1. Synthesis of ammonia
2. Decomposition of $PC{l}_5$ solid
3. Precipitation of $C{l}^{-}$ by $AgN{O}_3$
4. Formation of $S{O}_3$ from $S{O}_2$ and $O_2$

Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> The balanced chemical question of haber process is?

Q.

Which of the following reaction is irreversible in nature?

1. $N{H}_{4}Cl\left(s\right)\leftrightharpoons N{H}_3\left(g\right)+HCl\left(g\right)$

2. $N_2\left(g\right)+3H_2\left(g\right)\leftrightharpoons 2N{H}_3\left(g\right)$

3. $C{H}_4\left(g\right)+2O_2\left(g\right)\to C{O}_2\left(g\right)+2H_{2}O\left(l\right)$

4. $2S{O}_2\left(g\right)+O_2\left(g\right)\leftrightharpoons 2S{O}_3\left(g\right)$

Q. Reactions that take place both in forward and backward directions are called as ______.

1. irreversible reactions
2. reversible reactions
3. endothermic reactions
4. exothermic reactions

Q. is backward reaction possible in irreversible reactions?

Q. Complete and balance the following reaction:
$CaC{N}_2+H_{2}O\left(steam\right)\to CaC{O}_3+.....$

Q. Identify the type of reaction which will based on the information provided about the reactants:
$Fe{Cl}_3\left(aq\right)+NaOH\left(aq\right)\to$

1. Synthesis
2. Decomposition
3. Single Replacement
4. Double Replacement
5. Combustion

Q. Which of the following is an irreversible reaction?

1. $PC{l}_5\to PC{l}_3+C{l}_2$
2. $N_2+3H_2\to 2N{H}_3$
3. $2S{O}_2+O_2\to 2S{O}_3$
4. $2KCl{O}_3\to 2KCl+3O_2$

Q.

Ammonium chloride, on heating, liberates a gas which turns red litmus to blue.

1. True

2. False

Q. A reaction is said to be irreversible if either of the product escape out as gas or separate out as solid.
If true enter 1, if false enter 0.

Q.

Chemical equilibrium is always attained in an open system.

1. True

2. False

Q.

The rate of a reaction is calculated by using the formula

1. $Rateofreaction=\frac{Amountofproductformed}{Timetakenfortheformationoftheproduct}$

2. $Rateofreaction=\frac{Amountofreactantused}{Timetakenfortheconsumptionofthereactant}$

3. $Rateofreaction=Amountofreactantused\times Timetakenfortheconsumptionofthereactant$

4. $Rateofreaction=Amountofproductformed\times Timetakenfortheformationoftheproduct$

Q. Define Irreversible reaction with example.

Q. Which of the following reactions will go to completion?
I. $Zn+HCl$
II. $HCI+NaOH$
III. $A{g}^{+}\left(aq\right)+C{l}^{-}\left(aq\right)$

1. II only
2. I, II, and III
3. II and III only
4. III only
5. I and II only

Q.

${\mathrm{BaCl}}_2\left(\mathrm{aq}\right)+{\mathrm{Na}}_2{\mathrm{SO}}_4\left(\mathrm{aq}\right)\to {\mathrm{BaSO}}_4\left(\mathrm{s}\right)+2\mathrm{NaCl}\left(\mathrm{aq}\right)$

If ${\mathrm{Na}}_2{\mathrm{SO}}_4$(aq) in the above reaction is replaced with dilute ${\mathrm{H}}_2{\mathrm{SO}}_4$:

1. No reaction will takes place.

2. ${\mathrm{BaSO}}_4$ precipitate will be formed.

3. ${\mathrm{BaSO}}_4$ will be formed but will not precipitate as it is soluble in dilute ${\mathrm{H}}_2{\mathrm{SO}}_4$.

4. $\mathrm{NaCl}$ will precipitate due to a low pH.

Q. Which of the following statements is correct for hydration of alkene?

1. It follows $S_{N}1$ mechanism
2. It is a irreversible process
3. It takes place through carbocation mechanism
4. It follows all of the above

Q.

Reaction in which reactants give products but products do not give back reactants under the same condition is:

1. reversible reaction

2. irreversible reaction

3. forward reaction

4. backward reaction

Q.

Which of the following reaction is reversible in nature?

1. $2\text{Na (s)}+{\text{H}}_2\text{O (l)}\to 2\text{NaOH (aq)}+{\text{H}}_2\text{(g)}$

2. ${\text{CH}}_4\text{(g)}+2{\text{O}}_2\text{(g)}\to {\text{CO}}_2\text{(g)}+{\text{2H}}_2\text{O (l)}$

3. ${\text{BaCl}}_2\text{(aq)}+{\text{H}}_2{\text{SO}}_4\text{(aq)}\to {\text{BaSO}}_4\text{(s)}+\text{2HCl (aq)}$

4. ${\text{NH}}_4\text{Cl (s)}\leftrightharpoons {\text{NH}}_3\text{(g)}+\text{HCl(g)}$

Q.

Which of the following reaction is irreversible in nature?

1. $N{H}_{4}Cl\left(s\right)\leftrightharpoons N{H}_3\left(g\right)+HCl\left(g\right)$

2. $N_2\left(g\right)+3H_2\left(g\right)\leftrightharpoons 2N{H}_3\left(g\right)$

3. $C{H}_4\left(g\right)+2O_2\left(g\right)\to C{O}_2\left(g\right)+2H_{2}O\left(l\right)$

4. $2S{O}_2\left(g\right)+O_2\left(g\right)\leftrightharpoons 2S{O}_3\left(g\right)$

Q.

Which of the following reaction is irreversible in nature?

1. $N{H}_{4}Cl\left(s\right)\leftrightharpoons N{H}_3\left(g\right)+HCl\left(g\right)$

2. $2S{O}_2\left(g\right)+O_2\left(g\right)\leftrightharpoons 2S{O}_3\left(g\right)$

3. $N_2\left(g\right)+3H_2\left(g\right)\leftrightharpoons 2N{H}_3\left(g\right)$

4. $C{H}_4\left(g\right)+2O_2\left(g\right)\to C{O}_2\left(g\right)+2H_{2}O\left(l\right)$