Preparation of Chlorine

Q. A solution of 10ml of M/10 FeSO4 was titrated with KMnO4 solution in acidic medium , the amount of KMnO4 used will be a} 5ml of 0.1M b} 10ml of 0.1M c} 10ml of 0.5M d} 10ml of 0.02M

Q. The compounds used in the preparation of chlorine are manganese dioxide and .

1. sulphuric acid
2. hydrochloric acid
3. nitric acid

Q. How to manufacture urea?

Q.

List few properties of benzene diazonium chloride?

Q.

Hydrogen chloride gas on mixing with ammonia produces dense white fumes due to the formation of:

1. Ammonium hydroxide

2. Ammonium chloride

3. Nitrogen

4. Sulphur dioxide

Q.

Name the drying agent used in the laboratory preparation of hydrogen chloride gas and justify your answer.

Q.

Name the compound used in drying hydrogen chloride gas.

1. Dilute sulphuric acid

2. Nitric acid

3. Ammonium chloride

4. Concentrated sulphuric acid

Q.

Acidic nature of nitric acid is due to the polar nature of the compound.

1. False

2. True

Q.

What is the product formed when magnesium nitride, $M{g}_3{N}_2$ reacts with warm water?

1. $N{H}_{4}OH$ and $Mg$

2. $Mg{\left(OH\right)}_2$ and $N{H}_3$

3. $MgO$ and $N{H}_3$

4. None

Q.

Which of the following solvent will not dissociate HCl into free ions ?

1. Water

2. Methanol

3. Toluene

4. Ethanol

Q. Boiling cannot be used to concentrate Nitric Acid beyond a certain concentration. True or false ?

1. True
2. False

Q. is used as a dehydrating agent in the laboratory preparation of chlorine.

1. Hydrochloric acid
2. Nitric acid
3. Sulphuric acid
4. Sulphurous acid

Q.

$B(OH{)}_3+NaOH\rightleftharpoons NaB{O}_2+Na[B(OH{)}_4{]}^{-}+H_{2}O$

How can the reaction above be made to proceed in the forward reaction?

1. Addition of $N{a}_{2}HP{O}_4$

2. Addition of cis-1, 2-diol

3. Addition of borax

4. Addition of trans-1, 2-diol

Q.

$N{H}_{4}Cl$ + $NaN{O}_2\to$ ____ + ____

1. $N{H}_{4}N{O}_2$ + $NaCl$

2. $N{H}_{4}Cl$ + $NaCl$

3. $NC{l}_3$ + $N{H}_{4}Cl$

4. $N_2$ + $NaCl$

Q.

Which of the following reaction is/are correct?

1. $N{H}_{4}Cl+NaN{O}_2⟶N{H}_{4}N{O}_2+NaCl$

2. $N{H}_{4}C{l}_2+NaN{O}_2⟶N{H}_{4}N{O}_2+NaC{l}_2$

3. $C{l}_2+H_{2}O⟶HCl+HCLO$

4. $C{l}_2+H_{2}O⟶HCl+H_2+O_2$

Q. Fill in the blank:
$MgO+HCl\to$__________

1. $MgC{l}_2+H_{2}O$
2. $Mg(OH{)}_2+H_{2}O+C{l}_2$
3. No reaction
4. None of these

Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Metals lose electrons to form positively charged ions called _________.

1. cations
2. anions
3. molecules
4. elements

Q. Fill in the blank :
$MgO+HCl\to$__________

1. $MgC{l}_2+H_{2}O$
2. $Mg(OH{)}_2+H_{2}O+C{l}_2$
3. No reaction
4. None of these

Q.

$Mg+H_{2}S{O}_4\to \underset{–}{A}+H_2\left(Mg\right)\left(dilute\right)$

$Mg+2H_{2}S{O}_4\to \underset{–}{A}+\underset{–}{B}+2H_{2}O.\left(Concentrated\right)$ A & B are

1. MgSO₄, SO₃

2. MgSO₄, SO₂

3. MgO, SO₂

4. MgO, SO₃

Q.

$N{H}_{4}X+NaN{O}_2⟶N{H}_{4}N{O}_2+NaX$

Find out X.

1. Al

2. O

3. Cl

4. OH

Q.

1. What do you observe when
A) chlorine is bubbled through acidified ferrous sulphate
solution?
B) hydrogen and chlorine react in the presence of direct
sunlight

Q.

State what you would observe when : Copper is added to concentrated nitric acid.