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

316262 Assertion :
Oxidising power of perhalates are in the order: \(\mathrm{BrO}_{4}^{-}>\mathrm{IO}_{4}^{-}>\mathrm{ClO}_{4}^{-}\).
Reason :
The standard reduction potential for \(\mathrm{BrO}_{4}^{-}\)is more positive and decreases in the order: \(\mathrm{BrO}_{4}^{-}>\mathrm{IO}_{4}^{-}>\mathrm{ClO}_{4}^{-}\).

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

316265 The hydrogen halide that functions as the strongest acid in aqueous medium is

1 HF
2 \(\mathrm{HCl}\)
3 \(\mathrm{HBr}\)
4 \(\mathrm{HI}\)
CHXI11:THE P-BLOCK ELEMENTS

316266 Assertion :
HI cannot be prepared by the reaction of \(\mathrm{KI}\) with concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\).
Reason :
\(\mathrm{HI}\) has lowest \(\mathrm{H}-\mathrm{X}\) bond strength among halogen acids.

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

316267 The increasing order of reducing power of halogen acid is

1 \(\mathrm{HCl} < \mathrm{HBr} < \mathrm{HF} < \mathrm{HI}\)
2 \(\mathrm{HF} < \mathrm{HCl} < \mathrm{HBr} < \mathrm{HI}\)
3 \(\mathrm{HI} < \mathrm{HBr} < \mathrm{HCl} < \mathrm{HF}\)
4 \(\mathrm{HBr} < \mathrm{HCl} < \mathrm{HF} < \mathrm{HI}\)
CHXI11:THE P-BLOCK ELEMENTS

316268 The correct decreasing order of boiling points of hydrogen halides is:

1 \({\mathrm{\mathrm{HF}>\mathrm{HCl}>\mathrm{HBr}>\mathrm{HI}}}\)
2 \({\mathrm{\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}>\mathrm{HF}}}\)
3 \({\mathrm{\mathrm{HF}>\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}}}\)
4 \({\mathrm{\mathrm{HI}>\mathrm{HF}>\mathrm{HBr}>\mathrm{HCl}}}\)
KCET - 2024
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CHXI11:THE P-BLOCK ELEMENTS

316262 Assertion :
Oxidising power of perhalates are in the order: \(\mathrm{BrO}_{4}^{-}>\mathrm{IO}_{4}^{-}>\mathrm{ClO}_{4}^{-}\).
Reason :
The standard reduction potential for \(\mathrm{BrO}_{4}^{-}\)is more positive and decreases in the order: \(\mathrm{BrO}_{4}^{-}>\mathrm{IO}_{4}^{-}>\mathrm{ClO}_{4}^{-}\).

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

316265 The hydrogen halide that functions as the strongest acid in aqueous medium is

1 HF
2 \(\mathrm{HCl}\)
3 \(\mathrm{HBr}\)
4 \(\mathrm{HI}\)
CHXI11:THE P-BLOCK ELEMENTS

316266 Assertion :
HI cannot be prepared by the reaction of \(\mathrm{KI}\) with concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\).
Reason :
\(\mathrm{HI}\) has lowest \(\mathrm{H}-\mathrm{X}\) bond strength among halogen acids.

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

316267 The increasing order of reducing power of halogen acid is

1 \(\mathrm{HCl} < \mathrm{HBr} < \mathrm{HF} < \mathrm{HI}\)
2 \(\mathrm{HF} < \mathrm{HCl} < \mathrm{HBr} < \mathrm{HI}\)
3 \(\mathrm{HI} < \mathrm{HBr} < \mathrm{HCl} < \mathrm{HF}\)
4 \(\mathrm{HBr} < \mathrm{HCl} < \mathrm{HF} < \mathrm{HI}\)
CHXI11:THE P-BLOCK ELEMENTS

316268 The correct decreasing order of boiling points of hydrogen halides is:

1 \({\mathrm{\mathrm{HF}>\mathrm{HCl}>\mathrm{HBr}>\mathrm{HI}}}\)
2 \({\mathrm{\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}>\mathrm{HF}}}\)
3 \({\mathrm{\mathrm{HF}>\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}}}\)
4 \({\mathrm{\mathrm{HI}>\mathrm{HF}>\mathrm{HBr}>\mathrm{HCl}}}\)
KCET - 2024
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CHXI11:THE P-BLOCK ELEMENTS

316262 Assertion :
Oxidising power of perhalates are in the order: \(\mathrm{BrO}_{4}^{-}>\mathrm{IO}_{4}^{-}>\mathrm{ClO}_{4}^{-}\).
Reason :
The standard reduction potential for \(\mathrm{BrO}_{4}^{-}\)is more positive and decreases in the order: \(\mathrm{BrO}_{4}^{-}>\mathrm{IO}_{4}^{-}>\mathrm{ClO}_{4}^{-}\).

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

316265 The hydrogen halide that functions as the strongest acid in aqueous medium is

1 HF
2 \(\mathrm{HCl}\)
3 \(\mathrm{HBr}\)
4 \(\mathrm{HI}\)
CHXI11:THE P-BLOCK ELEMENTS

316266 Assertion :
HI cannot be prepared by the reaction of \(\mathrm{KI}\) with concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\).
Reason :
\(\mathrm{HI}\) has lowest \(\mathrm{H}-\mathrm{X}\) bond strength among halogen acids.

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

316267 The increasing order of reducing power of halogen acid is

1 \(\mathrm{HCl} < \mathrm{HBr} < \mathrm{HF} < \mathrm{HI}\)
2 \(\mathrm{HF} < \mathrm{HCl} < \mathrm{HBr} < \mathrm{HI}\)
3 \(\mathrm{HI} < \mathrm{HBr} < \mathrm{HCl} < \mathrm{HF}\)
4 \(\mathrm{HBr} < \mathrm{HCl} < \mathrm{HF} < \mathrm{HI}\)
CHXI11:THE P-BLOCK ELEMENTS

316268 The correct decreasing order of boiling points of hydrogen halides is:

1 \({\mathrm{\mathrm{HF}>\mathrm{HCl}>\mathrm{HBr}>\mathrm{HI}}}\)
2 \({\mathrm{\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}>\mathrm{HF}}}\)
3 \({\mathrm{\mathrm{HF}>\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}}}\)
4 \({\mathrm{\mathrm{HI}>\mathrm{HF}>\mathrm{HBr}>\mathrm{HCl}}}\)
KCET - 2024
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CHXI11:THE P-BLOCK ELEMENTS

316262 Assertion :
Oxidising power of perhalates are in the order: \(\mathrm{BrO}_{4}^{-}>\mathrm{IO}_{4}^{-}>\mathrm{ClO}_{4}^{-}\).
Reason :
The standard reduction potential for \(\mathrm{BrO}_{4}^{-}\)is more positive and decreases in the order: \(\mathrm{BrO}_{4}^{-}>\mathrm{IO}_{4}^{-}>\mathrm{ClO}_{4}^{-}\).

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

316265 The hydrogen halide that functions as the strongest acid in aqueous medium is

1 HF
2 \(\mathrm{HCl}\)
3 \(\mathrm{HBr}\)
4 \(\mathrm{HI}\)
CHXI11:THE P-BLOCK ELEMENTS

316266 Assertion :
HI cannot be prepared by the reaction of \(\mathrm{KI}\) with concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\).
Reason :
\(\mathrm{HI}\) has lowest \(\mathrm{H}-\mathrm{X}\) bond strength among halogen acids.

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

316267 The increasing order of reducing power of halogen acid is

1 \(\mathrm{HCl} < \mathrm{HBr} < \mathrm{HF} < \mathrm{HI}\)
2 \(\mathrm{HF} < \mathrm{HCl} < \mathrm{HBr} < \mathrm{HI}\)
3 \(\mathrm{HI} < \mathrm{HBr} < \mathrm{HCl} < \mathrm{HF}\)
4 \(\mathrm{HBr} < \mathrm{HCl} < \mathrm{HF} < \mathrm{HI}\)
CHXI11:THE P-BLOCK ELEMENTS

316268 The correct decreasing order of boiling points of hydrogen halides is:

1 \({\mathrm{\mathrm{HF}>\mathrm{HCl}>\mathrm{HBr}>\mathrm{HI}}}\)
2 \({\mathrm{\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}>\mathrm{HF}}}\)
3 \({\mathrm{\mathrm{HF}>\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}}}\)
4 \({\mathrm{\mathrm{HI}>\mathrm{HF}>\mathrm{HBr}>\mathrm{HCl}}}\)
KCET - 2024
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CHXI11:THE P-BLOCK ELEMENTS

316262 Assertion :
Oxidising power of perhalates are in the order: \(\mathrm{BrO}_{4}^{-}>\mathrm{IO}_{4}^{-}>\mathrm{ClO}_{4}^{-}\).
Reason :
The standard reduction potential for \(\mathrm{BrO}_{4}^{-}\)is more positive and decreases in the order: \(\mathrm{BrO}_{4}^{-}>\mathrm{IO}_{4}^{-}>\mathrm{ClO}_{4}^{-}\).

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

316265 The hydrogen halide that functions as the strongest acid in aqueous medium is

1 HF
2 \(\mathrm{HCl}\)
3 \(\mathrm{HBr}\)
4 \(\mathrm{HI}\)
CHXI11:THE P-BLOCK ELEMENTS

316266 Assertion :
HI cannot be prepared by the reaction of \(\mathrm{KI}\) with concentrated \(\mathrm{H}_{2} \mathrm{SO}_{4}\).
Reason :
\(\mathrm{HI}\) has lowest \(\mathrm{H}-\mathrm{X}\) bond strength among halogen acids.

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

316267 The increasing order of reducing power of halogen acid is

1 \(\mathrm{HCl} < \mathrm{HBr} < \mathrm{HF} < \mathrm{HI}\)
2 \(\mathrm{HF} < \mathrm{HCl} < \mathrm{HBr} < \mathrm{HI}\)
3 \(\mathrm{HI} < \mathrm{HBr} < \mathrm{HCl} < \mathrm{HF}\)
4 \(\mathrm{HBr} < \mathrm{HCl} < \mathrm{HF} < \mathrm{HI}\)
CHXI11:THE P-BLOCK ELEMENTS

316268 The correct decreasing order of boiling points of hydrogen halides is:

1 \({\mathrm{\mathrm{HF}>\mathrm{HCl}>\mathrm{HBr}>\mathrm{HI}}}\)
2 \({\mathrm{\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}>\mathrm{HF}}}\)
3 \({\mathrm{\mathrm{HF}>\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}}}\)
4 \({\mathrm{\mathrm{HI}>\mathrm{HF}>\mathrm{HBr}>\mathrm{HCl}}}\)
KCET - 2024