Silicon and its Compounds
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CHXI11:THE P-BLOCK ELEMENTS

316944 Identify the incorrect statement:

1 In \(\left(\mathrm{Si}_{3} \mathrm{O}_{9}\right)^{6-}\), tetrahedral \(\mathrm{SiO}_{4}\) units share two oxygen atoms.
2 Trialkylchlorosilane on hydrolysis gives \(\mathrm{R}_{3} \mathrm{SiOH}\)
3 \(\mathrm{SiCl}_{4}\) undergoes hydrolysis to give \(\mathrm{H}_{4} \mathrm{SiO}_{4}\)
4 \(\left(\mathrm{Si}_{3} \mathrm{O}_{9}\right)^{6-}\) has cyclic structure
JEE - 2013
CHXI11:THE P-BLOCK ELEMENTS

316945 Read Assertion and Reason carefully to mark the correct option given below.
Assertion :
Si - Si bond is much stronger than\(\mathrm{Si}-\mathrm{O}\) bond.
Reason :
Si forms multiple bonds easily.

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.
CHXI11:THE P-BLOCK ELEMENTS

316946 Method used for obtaining highly pure silicon used as a semiconductor material, is

1 Oxidation
2 Electrochemical
3 Crystallisation
4 Zone refining
CHXI11:THE P-BLOCK ELEMENTS

316947 A when added to silicon will give B. A and B are

1 \(\mathrm{HF}, \mathrm{H}_{2} \mathrm{SiF}_{4}\)
2 \(\mathrm{HF}, \mathrm{H}_{2} \mathrm{SiF}_{6}\)
3 \(\mathrm{HCl}, \mathrm{H}_{2} \mathrm{SiCl}_{6}\)
4 \(\mathrm{HI}, \mathrm{H}_{2} \mathrm{SiI}_{6}\)
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CHXI11:THE P-BLOCK ELEMENTS

316944 Identify the incorrect statement:

1 In \(\left(\mathrm{Si}_{3} \mathrm{O}_{9}\right)^{6-}\), tetrahedral \(\mathrm{SiO}_{4}\) units share two oxygen atoms.
2 Trialkylchlorosilane on hydrolysis gives \(\mathrm{R}_{3} \mathrm{SiOH}\)
3 \(\mathrm{SiCl}_{4}\) undergoes hydrolysis to give \(\mathrm{H}_{4} \mathrm{SiO}_{4}\)
4 \(\left(\mathrm{Si}_{3} \mathrm{O}_{9}\right)^{6-}\) has cyclic structure
JEE - 2013
CHXI11:THE P-BLOCK ELEMENTS

316945 Read Assertion and Reason carefully to mark the correct option given below.
Assertion :
Si - Si bond is much stronger than\(\mathrm{Si}-\mathrm{O}\) bond.
Reason :
Si forms multiple bonds easily.

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.
CHXI11:THE P-BLOCK ELEMENTS

316946 Method used for obtaining highly pure silicon used as a semiconductor material, is

1 Oxidation
2 Electrochemical
3 Crystallisation
4 Zone refining
CHXI11:THE P-BLOCK ELEMENTS

316947 A when added to silicon will give B. A and B are

1 \(\mathrm{HF}, \mathrm{H}_{2} \mathrm{SiF}_{4}\)
2 \(\mathrm{HF}, \mathrm{H}_{2} \mathrm{SiF}_{6}\)
3 \(\mathrm{HCl}, \mathrm{H}_{2} \mathrm{SiCl}_{6}\)
4 \(\mathrm{HI}, \mathrm{H}_{2} \mathrm{SiI}_{6}\)
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CHXI11:THE P-BLOCK ELEMENTS

316944 Identify the incorrect statement:

1 In \(\left(\mathrm{Si}_{3} \mathrm{O}_{9}\right)^{6-}\), tetrahedral \(\mathrm{SiO}_{4}\) units share two oxygen atoms.
2 Trialkylchlorosilane on hydrolysis gives \(\mathrm{R}_{3} \mathrm{SiOH}\)
3 \(\mathrm{SiCl}_{4}\) undergoes hydrolysis to give \(\mathrm{H}_{4} \mathrm{SiO}_{4}\)
4 \(\left(\mathrm{Si}_{3} \mathrm{O}_{9}\right)^{6-}\) has cyclic structure
JEE - 2013
CHXI11:THE P-BLOCK ELEMENTS

316945 Read Assertion and Reason carefully to mark the correct option given below.
Assertion :
Si - Si bond is much stronger than\(\mathrm{Si}-\mathrm{O}\) bond.
Reason :
Si forms multiple bonds easily.

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.
CHXI11:THE P-BLOCK ELEMENTS

316946 Method used for obtaining highly pure silicon used as a semiconductor material, is

1 Oxidation
2 Electrochemical
3 Crystallisation
4 Zone refining
CHXI11:THE P-BLOCK ELEMENTS

316947 A when added to silicon will give B. A and B are

1 \(\mathrm{HF}, \mathrm{H}_{2} \mathrm{SiF}_{4}\)
2 \(\mathrm{HF}, \mathrm{H}_{2} \mathrm{SiF}_{6}\)
3 \(\mathrm{HCl}, \mathrm{H}_{2} \mathrm{SiCl}_{6}\)
4 \(\mathrm{HI}, \mathrm{H}_{2} \mathrm{SiI}_{6}\)
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CHXI11:THE P-BLOCK ELEMENTS

316944 Identify the incorrect statement:

1 In \(\left(\mathrm{Si}_{3} \mathrm{O}_{9}\right)^{6-}\), tetrahedral \(\mathrm{SiO}_{4}\) units share two oxygen atoms.
2 Trialkylchlorosilane on hydrolysis gives \(\mathrm{R}_{3} \mathrm{SiOH}\)
3 \(\mathrm{SiCl}_{4}\) undergoes hydrolysis to give \(\mathrm{H}_{4} \mathrm{SiO}_{4}\)
4 \(\left(\mathrm{Si}_{3} \mathrm{O}_{9}\right)^{6-}\) has cyclic structure
JEE - 2013
CHXI11:THE P-BLOCK ELEMENTS

316945 Read Assertion and Reason carefully to mark the correct option given below.
Assertion :
Si - Si bond is much stronger than\(\mathrm{Si}-\mathrm{O}\) bond.
Reason :
Si forms multiple bonds easily.

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.
CHXI11:THE P-BLOCK ELEMENTS

316946 Method used for obtaining highly pure silicon used as a semiconductor material, is

1 Oxidation
2 Electrochemical
3 Crystallisation
4 Zone refining
CHXI11:THE P-BLOCK ELEMENTS

316947 A when added to silicon will give B. A and B are

1 \(\mathrm{HF}, \mathrm{H}_{2} \mathrm{SiF}_{4}\)
2 \(\mathrm{HF}, \mathrm{H}_{2} \mathrm{SiF}_{6}\)
3 \(\mathrm{HCl}, \mathrm{H}_{2} \mathrm{SiCl}_{6}\)
4 \(\mathrm{HI}, \mathrm{H}_{2} \mathrm{SiI}_{6}\)
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