QBManager

CHXI10:THE S-BLOCK ELEMENTS

315931 Which of the following on thermal decomposition yields a basic as well as an acidic oxide ?

1

{KClO}_{3}

2

{CaCO}_{3}

3

{NH}_{4} {NO}_{3}

4

{NaNO}_{3}

Explanation:

${CaCO}_{3} \overset{Δ}{⟶} \underset{Basic}{CaO} + \underset{Acidic}{{CO}_{2}}$ .

CHXI10:THE S-BLOCK ELEMENTS

315932 Causticization process is used for the preparation of

1 Caustic soda

2 Caustic potash

3 Baryta solution

4 Slaked lime

Explanation:

$\begin{array}{r} {Na}_{2} {CO}_{3} + Ca (OH)_{2} \to {CaCO}_{3} ↓ + 2 NaOH \\ (caustic soda) \end{array}$

CHXI10:THE S-BLOCK ELEMENTS

315933 The pair whose both species are used in antacid medicinal preparations is

1

{NaHCO}_{3}

and

Mg ({OH}_{2})

2

{Na}_{2} {CO}_{3}

and

Ca {({HCO}_{3})}_{2}

3

Ca {({HCO}_{3})}_{2}

and

Mg ({OH}_{2})

4

Ca (OH)_{2}

and

{NaHCO}_{3}

CHXI10:THE S-BLOCK ELEMENTS

315934 $BeO + C + C l_{2} \overset{60 - 800 K}{⇌}'X' +'Y'$
$^{'} X^{'} + L i A I H_{4} \to B e H_{2} + L i C l + A l C l_{3}$
What is the oxidation state of the non-metal in compound ' X '?

1

-

1

2

+ 1

3 0

4

\frac{1}{2}

Explanation:

X ' is ${BeCl}_{2}$
In ${BeCl}_{2}$ , Oxidation state of the non-metal $Cl$ is $- 1$ .

CHXI10:THE S-BLOCK ELEMENTS

315931 Which of the following on thermal decomposition yields a basic as well as an acidic oxide ?

1

{KClO}_{3}

2

{CaCO}_{3}

3

{NH}_{4} {NO}_{3}

4

{NaNO}_{3}

Explanation:

${CaCO}_{3} \overset{Δ}{⟶} \underset{Basic}{CaO} + \underset{Acidic}{{CO}_{2}}$ .

CHXI10:THE S-BLOCK ELEMENTS

315932 Causticization process is used for the preparation of

1 Caustic soda

2 Caustic potash

3 Baryta solution

4 Slaked lime

Explanation:

$\begin{array}{r} {Na}_{2} {CO}_{3} + Ca (OH)_{2} \to {CaCO}_{3} ↓ + 2 NaOH \\ (caustic soda) \end{array}$

CHXI10:THE S-BLOCK ELEMENTS

315933 The pair whose both species are used in antacid medicinal preparations is

1

{NaHCO}_{3}

and

Mg ({OH}_{2})

2

{Na}_{2} {CO}_{3}

and

Ca {({HCO}_{3})}_{2}

3

Ca {({HCO}_{3})}_{2}

and

Mg ({OH}_{2})

4

Ca (OH)_{2}

and

{NaHCO}_{3}

CHXI10:THE S-BLOCK ELEMENTS

315934 $BeO + C + C l_{2} \overset{60 - 800 K}{⇌}'X' +'Y'$
$^{'} X^{'} + L i A I H_{4} \to B e H_{2} + L i C l + A l C l_{3}$
What is the oxidation state of the non-metal in compound ' X '?

1

-

1

2

+ 1

3 0

4

\frac{1}{2}

Explanation:

X ' is ${BeCl}_{2}$
In ${BeCl}_{2}$ , Oxidation state of the non-metal $Cl$ is $- 1$ .

CHXI10:THE S-BLOCK ELEMENTS

315931 Which of the following on thermal decomposition yields a basic as well as an acidic oxide ?

1

{KClO}_{3}

2

{CaCO}_{3}

3

{NH}_{4} {NO}_{3}

4

{NaNO}_{3}

Explanation:

${CaCO}_{3} \overset{Δ}{⟶} \underset{Basic}{CaO} + \underset{Acidic}{{CO}_{2}}$ .

CHXI10:THE S-BLOCK ELEMENTS

315932 Causticization process is used for the preparation of

1 Caustic soda

2 Caustic potash

3 Baryta solution

4 Slaked lime

Explanation:

$\begin{array}{r} {Na}_{2} {CO}_{3} + Ca (OH)_{2} \to {CaCO}_{3} ↓ + 2 NaOH \\ (caustic soda) \end{array}$

CHXI10:THE S-BLOCK ELEMENTS

315933 The pair whose both species are used in antacid medicinal preparations is

1

{NaHCO}_{3}

and

Mg ({OH}_{2})

2

{Na}_{2} {CO}_{3}

and

Ca {({HCO}_{3})}_{2}

3

Ca {({HCO}_{3})}_{2}

and

Mg ({OH}_{2})

4

Ca (OH)_{2}

and

{NaHCO}_{3}

CHXI10:THE S-BLOCK ELEMENTS

315934 $BeO + C + C l_{2} \overset{60 - 800 K}{⇌}'X' +'Y'$
$^{'} X^{'} + L i A I H_{4} \to B e H_{2} + L i C l + A l C l_{3}$
What is the oxidation state of the non-metal in compound ' X '?

1

-

1

2

+ 1

3 0

4

\frac{1}{2}

Explanation:

X ' is ${BeCl}_{2}$
In ${BeCl}_{2}$ , Oxidation state of the non-metal $Cl$ is $- 1$ .

CHXI10:THE S-BLOCK ELEMENTS

315931 Which of the following on thermal decomposition yields a basic as well as an acidic oxide ?

1

{KClO}_{3}

2

{CaCO}_{3}

3

{NH}_{4} {NO}_{3}

4

{NaNO}_{3}

Explanation:

${CaCO}_{3} \overset{Δ}{⟶} \underset{Basic}{CaO} + \underset{Acidic}{{CO}_{2}}$ .

CHXI10:THE S-BLOCK ELEMENTS

315932 Causticization process is used for the preparation of

1 Caustic soda

2 Caustic potash

3 Baryta solution

4 Slaked lime

Explanation:

$\begin{array}{r} {Na}_{2} {CO}_{3} + Ca (OH)_{2} \to {CaCO}_{3} ↓ + 2 NaOH \\ (caustic soda) \end{array}$

CHXI10:THE S-BLOCK ELEMENTS

315933 The pair whose both species are used in antacid medicinal preparations is

1

{NaHCO}_{3}

and

Mg ({OH}_{2})

2

{Na}_{2} {CO}_{3}

and

Ca {({HCO}_{3})}_{2}

3

Ca {({HCO}_{3})}_{2}

and

Mg ({OH}_{2})

4

Ca (OH)_{2}

and

{NaHCO}_{3}

CHXI10:THE S-BLOCK ELEMENTS

315934 $BeO + C + C l_{2} \overset{60 - 800 K}{⇌}'X' +'Y'$
$^{'} X^{'} + L i A I H_{4} \to B e H_{2} + L i C l + A l C l_{3}$
What is the oxidation state of the non-metal in compound ' X '?

1

-

1

2

+ 1

3 0

4

\frac{1}{2}

Explanation:

X ' is ${BeCl}_{2}$
In ${BeCl}_{2}$ , Oxidation state of the non-metal $Cl$ is $- 1$ .

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Question Bank Series

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation:

Explanation: