Chemical Properties and General Characteristics of Alkali Metals
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CHXI10:THE S-BLOCK ELEMENTS

315837 Metal carbonates decompose on heating to give metal oxide and carbon dioxide. Which of the metal carbonates is most stable thermally?

1 \(\mathrm{MgCO}_{3}\)
2 \(\mathrm{SrCO}_{3}\)
3 \(\mathrm{CaCO}_{3}\)
4 \(\mathrm{BaCO}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315838 The decomposition temperature is lowest for

1 \(\mathrm{BeCO}_{3}\)
2 \(\mathrm{MgCO}_{3}\)
3 \(\mathrm{SrCO}_{3}\)
4 \(\mathrm{BaCO}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315839 Which of the carbonates given below is unstable in air and is kept in \(\mathrm{CO}_{2}\) atmosphere to avoid decomposition?

1 \(\mathrm{BeCO}_{3}\)
2 \(\mathrm{MgCO}_{3}\)
3 \(\mathrm{CaCO}_{3}\)
4 \(\mathrm{BaCO}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315840 Assertion :
Beryllium carbonate is kept in the atmosphere of carbon dioxide.
Reason :
Beryllium carbonate is unstable and decomposes to give beryllium oxide and carbon dioxide.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
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CHXI10:THE S-BLOCK ELEMENTS

315837 Metal carbonates decompose on heating to give metal oxide and carbon dioxide. Which of the metal carbonates is most stable thermally?

1 \(\mathrm{MgCO}_{3}\)
2 \(\mathrm{SrCO}_{3}\)
3 \(\mathrm{CaCO}_{3}\)
4 \(\mathrm{BaCO}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315838 The decomposition temperature is lowest for

1 \(\mathrm{BeCO}_{3}\)
2 \(\mathrm{MgCO}_{3}\)
3 \(\mathrm{SrCO}_{3}\)
4 \(\mathrm{BaCO}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315839 Which of the carbonates given below is unstable in air and is kept in \(\mathrm{CO}_{2}\) atmosphere to avoid decomposition?

1 \(\mathrm{BeCO}_{3}\)
2 \(\mathrm{MgCO}_{3}\)
3 \(\mathrm{CaCO}_{3}\)
4 \(\mathrm{BaCO}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315840 Assertion :
Beryllium carbonate is kept in the atmosphere of carbon dioxide.
Reason :
Beryllium carbonate is unstable and decomposes to give beryllium oxide and carbon dioxide.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
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CHXI10:THE S-BLOCK ELEMENTS

315837 Metal carbonates decompose on heating to give metal oxide and carbon dioxide. Which of the metal carbonates is most stable thermally?

1 \(\mathrm{MgCO}_{3}\)
2 \(\mathrm{SrCO}_{3}\)
3 \(\mathrm{CaCO}_{3}\)
4 \(\mathrm{BaCO}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315838 The decomposition temperature is lowest for

1 \(\mathrm{BeCO}_{3}\)
2 \(\mathrm{MgCO}_{3}\)
3 \(\mathrm{SrCO}_{3}\)
4 \(\mathrm{BaCO}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315839 Which of the carbonates given below is unstable in air and is kept in \(\mathrm{CO}_{2}\) atmosphere to avoid decomposition?

1 \(\mathrm{BeCO}_{3}\)
2 \(\mathrm{MgCO}_{3}\)
3 \(\mathrm{CaCO}_{3}\)
4 \(\mathrm{BaCO}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315840 Assertion :
Beryllium carbonate is kept in the atmosphere of carbon dioxide.
Reason :
Beryllium carbonate is unstable and decomposes to give beryllium oxide and carbon dioxide.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
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CHXI10:THE S-BLOCK ELEMENTS

315837 Metal carbonates decompose on heating to give metal oxide and carbon dioxide. Which of the metal carbonates is most stable thermally?

1 \(\mathrm{MgCO}_{3}\)
2 \(\mathrm{SrCO}_{3}\)
3 \(\mathrm{CaCO}_{3}\)
4 \(\mathrm{BaCO}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315838 The decomposition temperature is lowest for

1 \(\mathrm{BeCO}_{3}\)
2 \(\mathrm{MgCO}_{3}\)
3 \(\mathrm{SrCO}_{3}\)
4 \(\mathrm{BaCO}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315839 Which of the carbonates given below is unstable in air and is kept in \(\mathrm{CO}_{2}\) atmosphere to avoid decomposition?

1 \(\mathrm{BeCO}_{3}\)
2 \(\mathrm{MgCO}_{3}\)
3 \(\mathrm{CaCO}_{3}\)
4 \(\mathrm{BaCO}_{3}\)
CHXI10:THE S-BLOCK ELEMENTS

315840 Assertion :
Beryllium carbonate is kept in the atmosphere of carbon dioxide.
Reason :
Beryllium carbonate is unstable and decomposes to give beryllium oxide and carbon dioxide.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
For More Updates join with Us
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