Chemical Properties and General Characteristics of Group – 13 Elements
CHXI11:THE P-BLOCK ELEMENTS

316254 The trioxides which can exist as monomeric molecule is

1 SO3 in gaseous state
2 TeO3
3 SO3 in solid state
4 SeO3
CHXI11:THE P-BLOCK ELEMENTS

316255 How many of the following are in gaseous state at room temperature?
SO2,SO3,O3,SeO2,TeO2

1 5
2 4
3 3
4 2
CHXI11:THE P-BLOCK ELEMENTS

316256 Assertion :
SO3 acts as a powerful oxidising agent.
Reason :
S atom in SO3 contains no lone pair of electrons.

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

316254 The trioxides which can exist as monomeric molecule is

1 SO3 in gaseous state
2 TeO3
3 SO3 in solid state
4 SeO3
CHXI11:THE P-BLOCK ELEMENTS

316255 How many of the following are in gaseous state at room temperature?
SO2,SO3,O3,SeO2,TeO2

1 5
2 4
3 3
4 2
CHXI11:THE P-BLOCK ELEMENTS

316256 Assertion :
SO3 acts as a powerful oxidising agent.
Reason :
S atom in SO3 contains no lone pair of electrons.

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

316257 Select the periodic property which is not regular in halogen family on moving down the group?
(I) Ionization energy
(II) Electron gain enthalpy
(III) Size
(IV) Electronegativity

1 I and II
2 I, III, and IV
3 II and IV
4 Only II
CHXI11:THE P-BLOCK ELEMENTS

316254 The trioxides which can exist as monomeric molecule is

1 SO3 in gaseous state
2 TeO3
3 SO3 in solid state
4 SeO3
CHXI11:THE P-BLOCK ELEMENTS

316255 How many of the following are in gaseous state at room temperature?
SO2,SO3,O3,SeO2,TeO2

1 5
2 4
3 3
4 2
CHXI11:THE P-BLOCK ELEMENTS

316256 Assertion :
SO3 acts as a powerful oxidising agent.
Reason :
S atom in SO3 contains no lone pair of electrons.

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

316257 Select the periodic property which is not regular in halogen family on moving down the group?
(I) Ionization energy
(II) Electron gain enthalpy
(III) Size
(IV) Electronegativity

1 I and II
2 I, III, and IV
3 II and IV
4 Only II
CHXI11:THE P-BLOCK ELEMENTS

316254 The trioxides which can exist as monomeric molecule is

1 SO3 in gaseous state
2 TeO3
3 SO3 in solid state
4 SeO3
CHXI11:THE P-BLOCK ELEMENTS

316255 How many of the following are in gaseous state at room temperature?
SO2,SO3,O3,SeO2,TeO2

1 5
2 4
3 3
4 2
CHXI11:THE P-BLOCK ELEMENTS

316256 Assertion :
SO3 acts as a powerful oxidising agent.
Reason :
S atom in SO3 contains no lone pair of electrons.

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

316257 Select the periodic property which is not regular in halogen family on moving down the group?
(I) Ionization energy
(II) Electron gain enthalpy
(III) Size
(IV) Electronegativity

1 I and II
2 I, III, and IV
3 II and IV
4 Only II