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CHXI11:THE P-BLOCK ELEMENTS

316935 The composition of the common glass is

1

{Na}_{2} O \cdot CaO \cdot 6 {SiO}_{3}

2

{Na}_{2} O \cdot {Al}_{2} O_{3} \cdot {SiO}_{2}

3

CaO \cdot {Al}_{2} O_{3} \cdot {SiO}_{2}

4

{Na}_{2} O \cdot CaO \cdot 6 {SiO}_{2}

Explanation:

The simplest glass is soda glass which is also called soft glass. Glass is supercooled liquid mixture.The composition of soft glass is ${Na}_{2} O \cdot CaO \cdot 6 {SiO}_{2}$ .

CHXI11:THE P-BLOCK ELEMENTS

316936 Which one of the following statements is not correct?

1 Glass can be regarded as a super cooled liquid

2 Glass is affected by HF

3 Sodium silicate is called water glass

4 Pyrex glass is a mixture of sodium silicate and lead silicate

CHXI11:THE P-BLOCK ELEMENTS

316937 Pyrex glass is a mixture of

1 sodium borosilicate and barium borosilicate

2 sodium silicate and calcium silicate

3 sodium silicate and lead silicate

4 sodium silicate and aluminium borosilicate

CHXI11:THE P-BLOCK ELEMENTS

316938 Glass reacts with HF to produce

1

{Na}_{3} {AlF}_{6}

2

H_{2} {SiF}_{4}

3

H_{2} {SiO}_{3}

4

{SiF}_{4}

Explanation:

Glass is ${Na}_{2} O \cdot CaO .6 {SiO}_{2}$ . It reacts with $HF$ and gets dissolved.
${Na}_{2} O \cdot CaO .6 {SiO}_{2} + 28 HF ⟶$
$2 NaF + {CaF}_{2} + 6 {SiF}_{4} + 14 H_{2} O .$

CHXI11:THE P-BLOCK ELEMENTS

316939 The main constituent of water glass is :

1 Sodium silicate

2 Magnesium silicate

3 Calcium silicate

4 Silicic acid

CHXI11:THE P-BLOCK ELEMENTS

316935 The composition of the common glass is

1

{Na}_{2} O \cdot CaO \cdot 6 {SiO}_{3}

2

{Na}_{2} O \cdot {Al}_{2} O_{3} \cdot {SiO}_{2}

3

CaO \cdot {Al}_{2} O_{3} \cdot {SiO}_{2}

4

{Na}_{2} O \cdot CaO \cdot 6 {SiO}_{2}

Explanation:

The simplest glass is soda glass which is also called soft glass. Glass is supercooled liquid mixture.The composition of soft glass is ${Na}_{2} O \cdot CaO \cdot 6 {SiO}_{2}$ .

CHXI11:THE P-BLOCK ELEMENTS

316936 Which one of the following statements is not correct?

1 Glass can be regarded as a super cooled liquid

2 Glass is affected by HF

3 Sodium silicate is called water glass

4 Pyrex glass is a mixture of sodium silicate and lead silicate

CHXI11:THE P-BLOCK ELEMENTS

316937 Pyrex glass is a mixture of

1 sodium borosilicate and barium borosilicate

2 sodium silicate and calcium silicate

3 sodium silicate and lead silicate

4 sodium silicate and aluminium borosilicate

CHXI11:THE P-BLOCK ELEMENTS

316938 Glass reacts with HF to produce

1

{Na}_{3} {AlF}_{6}

2

H_{2} {SiF}_{4}

3

H_{2} {SiO}_{3}

4

{SiF}_{4}

Explanation:

Glass is ${Na}_{2} O \cdot CaO .6 {SiO}_{2}$ . It reacts with $HF$ and gets dissolved.
${Na}_{2} O \cdot CaO .6 {SiO}_{2} + 28 HF ⟶$
$2 NaF + {CaF}_{2} + 6 {SiF}_{4} + 14 H_{2} O .$

CHXI11:THE P-BLOCK ELEMENTS

316939 The main constituent of water glass is :

1 Sodium silicate

2 Magnesium silicate

3 Calcium silicate

4 Silicic acid

CHXI11:THE P-BLOCK ELEMENTS

316935 The composition of the common glass is

1

{Na}_{2} O \cdot CaO \cdot 6 {SiO}_{3}

2

{Na}_{2} O \cdot {Al}_{2} O_{3} \cdot {SiO}_{2}

3

CaO \cdot {Al}_{2} O_{3} \cdot {SiO}_{2}

4

{Na}_{2} O \cdot CaO \cdot 6 {SiO}_{2}

Explanation:

The simplest glass is soda glass which is also called soft glass. Glass is supercooled liquid mixture.The composition of soft glass is ${Na}_{2} O \cdot CaO \cdot 6 {SiO}_{2}$ .

CHXI11:THE P-BLOCK ELEMENTS

316936 Which one of the following statements is not correct?

1 Glass can be regarded as a super cooled liquid

2 Glass is affected by HF

3 Sodium silicate is called water glass

4 Pyrex glass is a mixture of sodium silicate and lead silicate

CHXI11:THE P-BLOCK ELEMENTS

316937 Pyrex glass is a mixture of

1 sodium borosilicate and barium borosilicate

2 sodium silicate and calcium silicate

3 sodium silicate and lead silicate

4 sodium silicate and aluminium borosilicate

CHXI11:THE P-BLOCK ELEMENTS

316938 Glass reacts with HF to produce

1

{Na}_{3} {AlF}_{6}

2

H_{2} {SiF}_{4}

3

H_{2} {SiO}_{3}

4

{SiF}_{4}

Explanation:

Glass is ${Na}_{2} O \cdot CaO .6 {SiO}_{2}$ . It reacts with $HF$ and gets dissolved.
${Na}_{2} O \cdot CaO .6 {SiO}_{2} + 28 HF ⟶$
$2 NaF + {CaF}_{2} + 6 {SiF}_{4} + 14 H_{2} O .$

CHXI11:THE P-BLOCK ELEMENTS

316939 The main constituent of water glass is :

1 Sodium silicate

2 Magnesium silicate

3 Calcium silicate

4 Silicic acid

CHXI11:THE P-BLOCK ELEMENTS

316935 The composition of the common glass is

1

{Na}_{2} O \cdot CaO \cdot 6 {SiO}_{3}

2

{Na}_{2} O \cdot {Al}_{2} O_{3} \cdot {SiO}_{2}

3

CaO \cdot {Al}_{2} O_{3} \cdot {SiO}_{2}

4

{Na}_{2} O \cdot CaO \cdot 6 {SiO}_{2}

Explanation:

The simplest glass is soda glass which is also called soft glass. Glass is supercooled liquid mixture.The composition of soft glass is ${Na}_{2} O \cdot CaO \cdot 6 {SiO}_{2}$ .

CHXI11:THE P-BLOCK ELEMENTS

316936 Which one of the following statements is not correct?

1 Glass can be regarded as a super cooled liquid

2 Glass is affected by HF

3 Sodium silicate is called water glass

4 Pyrex glass is a mixture of sodium silicate and lead silicate

CHXI11:THE P-BLOCK ELEMENTS

316937 Pyrex glass is a mixture of

1 sodium borosilicate and barium borosilicate

2 sodium silicate and calcium silicate

3 sodium silicate and lead silicate

4 sodium silicate and aluminium borosilicate

CHXI11:THE P-BLOCK ELEMENTS

316938 Glass reacts with HF to produce

1

{Na}_{3} {AlF}_{6}

2

H_{2} {SiF}_{4}

3

H_{2} {SiO}_{3}

4

{SiF}_{4}

Explanation:

Glass is ${Na}_{2} O \cdot CaO .6 {SiO}_{2}$ . It reacts with $HF$ and gets dissolved.
${Na}_{2} O \cdot CaO .6 {SiO}_{2} + 28 HF ⟶$
$2 NaF + {CaF}_{2} + 6 {SiF}_{4} + 14 H_{2} O .$

CHXI11:THE P-BLOCK ELEMENTS

316939 The main constituent of water glass is :

1 Sodium silicate

2 Magnesium silicate

3 Calcium silicate

4 Silicic acid

CHXI11:THE P-BLOCK ELEMENTS

316935 The composition of the common glass is

1

{Na}_{2} O \cdot CaO \cdot 6 {SiO}_{3}

2

{Na}_{2} O \cdot {Al}_{2} O_{3} \cdot {SiO}_{2}

3

CaO \cdot {Al}_{2} O_{3} \cdot {SiO}_{2}

4

{Na}_{2} O \cdot CaO \cdot 6 {SiO}_{2}

Explanation:

The simplest glass is soda glass which is also called soft glass. Glass is supercooled liquid mixture.The composition of soft glass is ${Na}_{2} O \cdot CaO \cdot 6 {SiO}_{2}$ .

CHXI11:THE P-BLOCK ELEMENTS

316936 Which one of the following statements is not correct?

1 Glass can be regarded as a super cooled liquid

2 Glass is affected by HF

3 Sodium silicate is called water glass

4 Pyrex glass is a mixture of sodium silicate and lead silicate

CHXI11:THE P-BLOCK ELEMENTS

316937 Pyrex glass is a mixture of

1 sodium borosilicate and barium borosilicate

2 sodium silicate and calcium silicate

3 sodium silicate and lead silicate

4 sodium silicate and aluminium borosilicate

CHXI11:THE P-BLOCK ELEMENTS

316938 Glass reacts with HF to produce

1

{Na}_{3} {AlF}_{6}

2

H_{2} {SiF}_{4}

3

H_{2} {SiO}_{3}

4

{SiF}_{4}

Explanation:

Glass is ${Na}_{2} O \cdot CaO .6 {SiO}_{2}$ . It reacts with $HF$ and gets dissolved.
${Na}_{2} O \cdot CaO .6 {SiO}_{2} + 28 HF ⟶$
$2 NaF + {CaF}_{2} + 6 {SiF}_{4} + 14 H_{2} O .$

CHXI11:THE P-BLOCK ELEMENTS

316939 The main constituent of water glass is :

1 Sodium silicate

2 Magnesium silicate

3 Calcium silicate

4 Silicic acid