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

316258 With respect to halogens, four statements are given below:
(I) The bond dissociation energies for halogens are in the order: \(\mathrm{I}_{2} < \mathrm{F}_{2} < \mathrm{Br}_{2} < \mathrm{Cl}_{2}\).
(II) The only oxidation state is –1 .
(III) The amount of energy required for the excitation of electrons to first excited state decreases progressively as we move from F to I.
(IV)They form \(\mathrm{HX}_{2}{ }^{-}\)species in their aqueous solutions \((x=\) halogen).
The correct statement are

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

316259 The compound that represents phosgene is

1 phosphine
2 phosphorus trichloride
3 carbonyl chloride
4 phosphorus oxychloride
CHXI11:THE P-BLOCK ELEMENTS

316260 I : Most of the oxoacids of halogens cannot be isolated in pure state.
II : These are stable only in aqueous solutions or in the form of their salts.
Which of these statement(s) is/are correct?

1 Only I
2 Only II
3 Both I and II
4 None of the above
CHXI11:THE P-BLOCK ELEMENTS

316261 Assertion :
\(\mathrm{HClO}\) is stronger acid than \(\mathrm{HBrO}\).
Reason :
Greater is the electronegativity of the halogen, more acidic is the halic acid.

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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CHXI11:THE P-BLOCK ELEMENTS

316258 With respect to halogens, four statements are given below:
(I) The bond dissociation energies for halogens are in the order: \(\mathrm{I}_{2} < \mathrm{F}_{2} < \mathrm{Br}_{2} < \mathrm{Cl}_{2}\).
(II) The only oxidation state is –1 .
(III) The amount of energy required for the excitation of electrons to first excited state decreases progressively as we move from F to I.
(IV)They form \(\mathrm{HX}_{2}{ }^{-}\)species in their aqueous solutions \((x=\) halogen).
The correct statement are

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

316259 The compound that represents phosgene is

1 phosphine
2 phosphorus trichloride
3 carbonyl chloride
4 phosphorus oxychloride
CHXI11:THE P-BLOCK ELEMENTS

316260 I : Most of the oxoacids of halogens cannot be isolated in pure state.
II : These are stable only in aqueous solutions or in the form of their salts.
Which of these statement(s) is/are correct?

1 Only I
2 Only II
3 Both I and II
4 None of the above
CHXI11:THE P-BLOCK ELEMENTS

316261 Assertion :
\(\mathrm{HClO}\) is stronger acid than \(\mathrm{HBrO}\).
Reason :
Greater is the electronegativity of the halogen, more acidic is the halic acid.

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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CHXI11:THE P-BLOCK ELEMENTS

316258 With respect to halogens, four statements are given below:
(I) The bond dissociation energies for halogens are in the order: \(\mathrm{I}_{2} < \mathrm{F}_{2} < \mathrm{Br}_{2} < \mathrm{Cl}_{2}\).
(II) The only oxidation state is –1 .
(III) The amount of energy required for the excitation of electrons to first excited state decreases progressively as we move from F to I.
(IV)They form \(\mathrm{HX}_{2}{ }^{-}\)species in their aqueous solutions \((x=\) halogen).
The correct statement are

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

316259 The compound that represents phosgene is

1 phosphine
2 phosphorus trichloride
3 carbonyl chloride
4 phosphorus oxychloride
CHXI11:THE P-BLOCK ELEMENTS

316260 I : Most of the oxoacids of halogens cannot be isolated in pure state.
II : These are stable only in aqueous solutions or in the form of their salts.
Which of these statement(s) is/are correct?

1 Only I
2 Only II
3 Both I and II
4 None of the above
CHXI11:THE P-BLOCK ELEMENTS

316261 Assertion :
\(\mathrm{HClO}\) is stronger acid than \(\mathrm{HBrO}\).
Reason :
Greater is the electronegativity of the halogen, more acidic is the halic acid.

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
CHXI11:THE P-BLOCK ELEMENTS

316258 With respect to halogens, four statements are given below:
(I) The bond dissociation energies for halogens are in the order: \(\mathrm{I}_{2} < \mathrm{F}_{2} < \mathrm{Br}_{2} < \mathrm{Cl}_{2}\).
(II) The only oxidation state is –1 .
(III) The amount of energy required for the excitation of electrons to first excited state decreases progressively as we move from F to I.
(IV)They form \(\mathrm{HX}_{2}{ }^{-}\)species in their aqueous solutions \((x=\) halogen).
The correct statement are

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

316259 The compound that represents phosgene is

1 phosphine
2 phosphorus trichloride
3 carbonyl chloride
4 phosphorus oxychloride
CHXI11:THE P-BLOCK ELEMENTS

316260 I : Most of the oxoacids of halogens cannot be isolated in pure state.
II : These are stable only in aqueous solutions or in the form of their salts.
Which of these statement(s) is/are correct?

1 Only I
2 Only II
3 Both I and II
4 None of the above
CHXI11:THE P-BLOCK ELEMENTS

316261 Assertion :
\(\mathrm{HClO}\) is stronger acid than \(\mathrm{HBrO}\).
Reason :
Greater is the electronegativity of the halogen, more acidic is the halic acid.

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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