As oxidation number of central atom increases, acidic nature increases. \(\mathrm{HClO} < \mathrm{HClO}_{2} < \mathrm{HClO}_{3} < \mathrm{HClO}_{4}\)
NEET - 2016
CHXI11:THE P-BLOCK ELEMENTS
316341
Which one of the following is present as an active ingredient in bleaching powder for bleaching action?
1 \(\mathrm{Ca}(\mathrm{OCl})_{2}\)
2 \(\mathrm{CaO}_{2} \mathrm{Cl}\)
3 \(\mathrm{CaCl}_{2}\)
4 \(\mathrm{CaOCl}_{2}\)
Explanation:
Bleaching powder is \({\rm{Ca}}{\left( {{\rm{OCl}}} \right)_{\rm{2}}} \cdot {\rm{CaC}}{{\rm{l}}_{\rm{2}}} \cdot {\rm{Ca}}{\left( {{\rm{OH}}} \right)_{\rm{2}}} \cdot {{\rm{H}}_{\rm{2}}}{\rm{O}}\) \({\rm{Ca}}{\left( {{\rm{OCl}}} \right)_{\rm{2}}}\) is active ingredient in bleaching powder of bleaching action.
CHXI11:THE P-BLOCK ELEMENTS
316342
Assertion : \(\mathrm{HClO}_{4}\) is a stronger acid than \(\mathrm{HClO}_{3}\). Reason : Oxidation state of \(\mathrm{Cl}\) in \(\mathrm{HClO}_{4}\) is +8 and in \(\mathrm{HClO}_{3}\) is +5 .
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.
Explanation:
Acid strength of oxyacids of the same halogen increases with increase in oxidation number of the halogens. Oxidation number of \(\mathrm{Cl}\) in \(\mathrm{HClO}_{4}\) is +7 and in \(\mathrm{HClO}_{3}\) is +5 . So option (3) is correct.
CHXI11:THE P-BLOCK ELEMENTS
316343
The correct order of increasing hydration energy of the following conjugate bases of oxyacids of chlorine is
Hydration energy varies inversely with size. Among the given oxyacids, \(\mathrm{ClO}_{4}^{-}\)has the smallest size because of the presence of \(\mathrm{Cl}^{7+}\) followed by \(\mathrm{ClO}_{3}^{-}\)(with \(\mathrm{Cl}^{5+}\) ) and \(\mathrm{ClO}_{2}^{-}\)(with \(\mathrm{Cl}^{3+}\) ) \(\cdot \mathrm{ClO}^{-}\)has the largest size with \(\mathrm{Cl}^{+}\)ion. Hence, the order of increasing hydration energy is\(\mathrm{ClO}^{-} < \mathrm{ClO}_{2}^{-} < \mathrm{ClO}_{3}^{-} < \mathrm{ClO}_{4}^{-}\)
As oxidation number of central atom increases, acidic nature increases. \(\mathrm{HClO} < \mathrm{HClO}_{2} < \mathrm{HClO}_{3} < \mathrm{HClO}_{4}\)
NEET - 2016
CHXI11:THE P-BLOCK ELEMENTS
316341
Which one of the following is present as an active ingredient in bleaching powder for bleaching action?
1 \(\mathrm{Ca}(\mathrm{OCl})_{2}\)
2 \(\mathrm{CaO}_{2} \mathrm{Cl}\)
3 \(\mathrm{CaCl}_{2}\)
4 \(\mathrm{CaOCl}_{2}\)
Explanation:
Bleaching powder is \({\rm{Ca}}{\left( {{\rm{OCl}}} \right)_{\rm{2}}} \cdot {\rm{CaC}}{{\rm{l}}_{\rm{2}}} \cdot {\rm{Ca}}{\left( {{\rm{OH}}} \right)_{\rm{2}}} \cdot {{\rm{H}}_{\rm{2}}}{\rm{O}}\) \({\rm{Ca}}{\left( {{\rm{OCl}}} \right)_{\rm{2}}}\) is active ingredient in bleaching powder of bleaching action.
CHXI11:THE P-BLOCK ELEMENTS
316342
Assertion : \(\mathrm{HClO}_{4}\) is a stronger acid than \(\mathrm{HClO}_{3}\). Reason : Oxidation state of \(\mathrm{Cl}\) in \(\mathrm{HClO}_{4}\) is +8 and in \(\mathrm{HClO}_{3}\) is +5 .
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.
Explanation:
Acid strength of oxyacids of the same halogen increases with increase in oxidation number of the halogens. Oxidation number of \(\mathrm{Cl}\) in \(\mathrm{HClO}_{4}\) is +7 and in \(\mathrm{HClO}_{3}\) is +5 . So option (3) is correct.
CHXI11:THE P-BLOCK ELEMENTS
316343
The correct order of increasing hydration energy of the following conjugate bases of oxyacids of chlorine is
Hydration energy varies inversely with size. Among the given oxyacids, \(\mathrm{ClO}_{4}^{-}\)has the smallest size because of the presence of \(\mathrm{Cl}^{7+}\) followed by \(\mathrm{ClO}_{3}^{-}\)(with \(\mathrm{Cl}^{5+}\) ) and \(\mathrm{ClO}_{2}^{-}\)(with \(\mathrm{Cl}^{3+}\) ) \(\cdot \mathrm{ClO}^{-}\)has the largest size with \(\mathrm{Cl}^{+}\)ion. Hence, the order of increasing hydration energy is\(\mathrm{ClO}^{-} < \mathrm{ClO}_{2}^{-} < \mathrm{ClO}_{3}^{-} < \mathrm{ClO}_{4}^{-}\)
As oxidation number of central atom increases, acidic nature increases. \(\mathrm{HClO} < \mathrm{HClO}_{2} < \mathrm{HClO}_{3} < \mathrm{HClO}_{4}\)
NEET - 2016
CHXI11:THE P-BLOCK ELEMENTS
316341
Which one of the following is present as an active ingredient in bleaching powder for bleaching action?
1 \(\mathrm{Ca}(\mathrm{OCl})_{2}\)
2 \(\mathrm{CaO}_{2} \mathrm{Cl}\)
3 \(\mathrm{CaCl}_{2}\)
4 \(\mathrm{CaOCl}_{2}\)
Explanation:
Bleaching powder is \({\rm{Ca}}{\left( {{\rm{OCl}}} \right)_{\rm{2}}} \cdot {\rm{CaC}}{{\rm{l}}_{\rm{2}}} \cdot {\rm{Ca}}{\left( {{\rm{OH}}} \right)_{\rm{2}}} \cdot {{\rm{H}}_{\rm{2}}}{\rm{O}}\) \({\rm{Ca}}{\left( {{\rm{OCl}}} \right)_{\rm{2}}}\) is active ingredient in bleaching powder of bleaching action.
CHXI11:THE P-BLOCK ELEMENTS
316342
Assertion : \(\mathrm{HClO}_{4}\) is a stronger acid than \(\mathrm{HClO}_{3}\). Reason : Oxidation state of \(\mathrm{Cl}\) in \(\mathrm{HClO}_{4}\) is +8 and in \(\mathrm{HClO}_{3}\) is +5 .
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.
Explanation:
Acid strength of oxyacids of the same halogen increases with increase in oxidation number of the halogens. Oxidation number of \(\mathrm{Cl}\) in \(\mathrm{HClO}_{4}\) is +7 and in \(\mathrm{HClO}_{3}\) is +5 . So option (3) is correct.
CHXI11:THE P-BLOCK ELEMENTS
316343
The correct order of increasing hydration energy of the following conjugate bases of oxyacids of chlorine is
Hydration energy varies inversely with size. Among the given oxyacids, \(\mathrm{ClO}_{4}^{-}\)has the smallest size because of the presence of \(\mathrm{Cl}^{7+}\) followed by \(\mathrm{ClO}_{3}^{-}\)(with \(\mathrm{Cl}^{5+}\) ) and \(\mathrm{ClO}_{2}^{-}\)(with \(\mathrm{Cl}^{3+}\) ) \(\cdot \mathrm{ClO}^{-}\)has the largest size with \(\mathrm{Cl}^{+}\)ion. Hence, the order of increasing hydration energy is\(\mathrm{ClO}^{-} < \mathrm{ClO}_{2}^{-} < \mathrm{ClO}_{3}^{-} < \mathrm{ClO}_{4}^{-}\)
As oxidation number of central atom increases, acidic nature increases. \(\mathrm{HClO} < \mathrm{HClO}_{2} < \mathrm{HClO}_{3} < \mathrm{HClO}_{4}\)
NEET - 2016
CHXI11:THE P-BLOCK ELEMENTS
316341
Which one of the following is present as an active ingredient in bleaching powder for bleaching action?
1 \(\mathrm{Ca}(\mathrm{OCl})_{2}\)
2 \(\mathrm{CaO}_{2} \mathrm{Cl}\)
3 \(\mathrm{CaCl}_{2}\)
4 \(\mathrm{CaOCl}_{2}\)
Explanation:
Bleaching powder is \({\rm{Ca}}{\left( {{\rm{OCl}}} \right)_{\rm{2}}} \cdot {\rm{CaC}}{{\rm{l}}_{\rm{2}}} \cdot {\rm{Ca}}{\left( {{\rm{OH}}} \right)_{\rm{2}}} \cdot {{\rm{H}}_{\rm{2}}}{\rm{O}}\) \({\rm{Ca}}{\left( {{\rm{OCl}}} \right)_{\rm{2}}}\) is active ingredient in bleaching powder of bleaching action.
CHXI11:THE P-BLOCK ELEMENTS
316342
Assertion : \(\mathrm{HClO}_{4}\) is a stronger acid than \(\mathrm{HClO}_{3}\). Reason : Oxidation state of \(\mathrm{Cl}\) in \(\mathrm{HClO}_{4}\) is +8 and in \(\mathrm{HClO}_{3}\) is +5 .
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.
Explanation:
Acid strength of oxyacids of the same halogen increases with increase in oxidation number of the halogens. Oxidation number of \(\mathrm{Cl}\) in \(\mathrm{HClO}_{4}\) is +7 and in \(\mathrm{HClO}_{3}\) is +5 . So option (3) is correct.
CHXI11:THE P-BLOCK ELEMENTS
316343
The correct order of increasing hydration energy of the following conjugate bases of oxyacids of chlorine is
Hydration energy varies inversely with size. Among the given oxyacids, \(\mathrm{ClO}_{4}^{-}\)has the smallest size because of the presence of \(\mathrm{Cl}^{7+}\) followed by \(\mathrm{ClO}_{3}^{-}\)(with \(\mathrm{Cl}^{5+}\) ) and \(\mathrm{ClO}_{2}^{-}\)(with \(\mathrm{Cl}^{3+}\) ) \(\cdot \mathrm{ClO}^{-}\)has the largest size with \(\mathrm{Cl}^{+}\)ion. Hence, the order of increasing hydration energy is\(\mathrm{ClO}^{-} < \mathrm{ClO}_{2}^{-} < \mathrm{ClO}_{3}^{-} < \mathrm{ClO}_{4}^{-}\)
