Some Important Compounds of Calcium
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CHXI10:THE S-BLOCK ELEMENTS

315994 Calculate the amount of sodium carbonate (in grams) to be added to calcium chloride to prepare 50.0 g of calcium carbonate.
[At. Wt of \({\mathrm{\mathrm{C}=12, \mathrm{O}=16, \mathrm{Na}=23, \mathrm{Ca}=40}}\), \({\mathrm{\mathrm{Cl}=35.5 \mathrm{u}]}}\)

1 23
2 30
3 53
4 70
CHXI10:THE S-BLOCK ELEMENTS

315995 Soda ash is

1 \(\mathrm{Na}_{2} \mathrm{CO}_{3}\)
2 \(\mathrm{Na}_{2} \mathrm{CO}_{3} \cdot 10 \mathrm{H}_{2} \mathrm{O}\)
3 \(\mathrm{Na}_{2} \mathrm{CO}_{3} \cdot \mathrm{H}_{2} \mathrm{O}\)
4 \(\mathrm{NaHCO}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315996 Sodium is heated in air at \(300^{\circ} \mathrm{C}\) to form \(\mathrm{X} . \mathrm{X}\) absorbs \(\mathrm{CO}_{2}\) and forms \(\mathrm{Na}_{2} \mathrm{CO}_{3}\) and \(\mathrm{Y}\). Then \(\mathrm{Y}\) is

1 \(\mathrm{H}_{2}\)
2 \(\mathrm{O}_{2}\)
3 \(\mathrm{H}_{2} \mathrm{O}_{2}\)
4 \(\mathrm{O}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315997 How many water molecules are associated with washing Soda?

1 8
2 6
3 12
4 10
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CHXI10:THE S-BLOCK ELEMENTS

315994 Calculate the amount of sodium carbonate (in grams) to be added to calcium chloride to prepare 50.0 g of calcium carbonate.
[At. Wt of \({\mathrm{\mathrm{C}=12, \mathrm{O}=16, \mathrm{Na}=23, \mathrm{Ca}=40}}\), \({\mathrm{\mathrm{Cl}=35.5 \mathrm{u}]}}\)

1 23
2 30
3 53
4 70
CHXI10:THE S-BLOCK ELEMENTS

315995 Soda ash is

1 \(\mathrm{Na}_{2} \mathrm{CO}_{3}\)
2 \(\mathrm{Na}_{2} \mathrm{CO}_{3} \cdot 10 \mathrm{H}_{2} \mathrm{O}\)
3 \(\mathrm{Na}_{2} \mathrm{CO}_{3} \cdot \mathrm{H}_{2} \mathrm{O}\)
4 \(\mathrm{NaHCO}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315996 Sodium is heated in air at \(300^{\circ} \mathrm{C}\) to form \(\mathrm{X} . \mathrm{X}\) absorbs \(\mathrm{CO}_{2}\) and forms \(\mathrm{Na}_{2} \mathrm{CO}_{3}\) and \(\mathrm{Y}\). Then \(\mathrm{Y}\) is

1 \(\mathrm{H}_{2}\)
2 \(\mathrm{O}_{2}\)
3 \(\mathrm{H}_{2} \mathrm{O}_{2}\)
4 \(\mathrm{O}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315997 How many water molecules are associated with washing Soda?

1 8
2 6
3 12
4 10
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CHXI10:THE S-BLOCK ELEMENTS

315994 Calculate the amount of sodium carbonate (in grams) to be added to calcium chloride to prepare 50.0 g of calcium carbonate.
[At. Wt of \({\mathrm{\mathrm{C}=12, \mathrm{O}=16, \mathrm{Na}=23, \mathrm{Ca}=40}}\), \({\mathrm{\mathrm{Cl}=35.5 \mathrm{u}]}}\)

1 23
2 30
3 53
4 70
CHXI10:THE S-BLOCK ELEMENTS

315995 Soda ash is

1 \(\mathrm{Na}_{2} \mathrm{CO}_{3}\)
2 \(\mathrm{Na}_{2} \mathrm{CO}_{3} \cdot 10 \mathrm{H}_{2} \mathrm{O}\)
3 \(\mathrm{Na}_{2} \mathrm{CO}_{3} \cdot \mathrm{H}_{2} \mathrm{O}\)
4 \(\mathrm{NaHCO}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315996 Sodium is heated in air at \(300^{\circ} \mathrm{C}\) to form \(\mathrm{X} . \mathrm{X}\) absorbs \(\mathrm{CO}_{2}\) and forms \(\mathrm{Na}_{2} \mathrm{CO}_{3}\) and \(\mathrm{Y}\). Then \(\mathrm{Y}\) is

1 \(\mathrm{H}_{2}\)
2 \(\mathrm{O}_{2}\)
3 \(\mathrm{H}_{2} \mathrm{O}_{2}\)
4 \(\mathrm{O}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315997 How many water molecules are associated with washing Soda?

1 8
2 6
3 12
4 10
For More Updates join with Us
CHXI10:THE S-BLOCK ELEMENTS

315994 Calculate the amount of sodium carbonate (in grams) to be added to calcium chloride to prepare 50.0 g of calcium carbonate.
[At. Wt of \({\mathrm{\mathrm{C}=12, \mathrm{O}=16, \mathrm{Na}=23, \mathrm{Ca}=40}}\), \({\mathrm{\mathrm{Cl}=35.5 \mathrm{u}]}}\)

1 23
2 30
3 53
4 70
CHXI10:THE S-BLOCK ELEMENTS

315995 Soda ash is

1 \(\mathrm{Na}_{2} \mathrm{CO}_{3}\)
2 \(\mathrm{Na}_{2} \mathrm{CO}_{3} \cdot 10 \mathrm{H}_{2} \mathrm{O}\)
3 \(\mathrm{Na}_{2} \mathrm{CO}_{3} \cdot \mathrm{H}_{2} \mathrm{O}\)
4 \(\mathrm{NaHCO}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315996 Sodium is heated in air at \(300^{\circ} \mathrm{C}\) to form \(\mathrm{X} . \mathrm{X}\) absorbs \(\mathrm{CO}_{2}\) and forms \(\mathrm{Na}_{2} \mathrm{CO}_{3}\) and \(\mathrm{Y}\). Then \(\mathrm{Y}\) is

1 \(\mathrm{H}_{2}\)
2 \(\mathrm{O}_{2}\)
3 \(\mathrm{H}_{2} \mathrm{O}_{2}\)
4 \(\mathrm{O}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315997 How many water molecules are associated with washing Soda?

1 8
2 6
3 12
4 10