317047
Which one can be used as a test for \({{\rm{H}}_{\rm{2}}}{\rm{S}}\) gas?
1 A smell of rotten egg
2 A violet colouration with sodium nitroprusside
3 Turning lead acetate paper black
4 All of these
Explanation:
Conceptual Questions
CHXI11:THE P-BLOCK ELEMENTS
317048
If the supply of oxygen is limited, \(\mathrm{H}_{2} \mathrm{~S}\) reacts with \(\mathrm{O}_{2}\) to form
1 \(\mathrm{H}_{2} \mathrm{O}+\mathrm{SO}_{3}\)
2 \(\mathrm{H}_{2} \mathrm{O}+\mathrm{S}\)
3 \(\mathrm{H}_{2} \mathrm{SO}_{4}+\mathrm{S}\)
4 \(\mathrm{H}_{2} \mathrm{O}+\mathrm{SO}_{2}\)
Explanation:
In limited supply of oxygen, \(\mathrm{H}_{2} \mathrm{~S}\) burns with blue flame and \(\mathrm{S}\) and \(\mathrm{H}_{2} \mathrm{O}\) are the main products \(2{{\rm{H}}_2}\;{\rm{S}} + {{\rm{O}}_2} \to 2{{\rm{H}}_2}{\rm{O}} + 2\;{\rm{S}}\) Note In excess of oxygen, \(\mathrm{H}_{2} \mathrm{~S}\) gives \(\mathrm{SO}_{2}\) and water as main product.
CHXI11:THE P-BLOCK ELEMENTS
317049
What is the number of \({\mathrm{\sigma}}\) bonds present in peroxodisulphuri acid?
1 3
2 5
3 7
4 9
Explanation:
Number of \({\mathrm{\sigma}}\) bonds \({\mathrm{=9}}\).
CHXI11:THE P-BLOCK ELEMENTS
317050
Assertion : In \(\mathrm{SO}_{2}\), the bond angle is \(119^{\circ}\) whereas in \(\mathrm{SO}_{3}\), the bond angle is \(120^{\circ}\). Reason : \(\mathrm{S}\) atom in both \(\mathrm{SO}_{2}\) and \(\mathrm{SO}_{3}\) is \(\mathrm{sp}^{2}-\) hybridized.
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:
\(\mathrm{S}\) atom in both \(\mathrm{SO}_{2}\) and \(\mathrm{SO}_{3}\) is \(\mathrm{sp}^{2}\) hybridized. But it contains a lone-pair of electrons in \(\mathrm{SO}_{2}\) which results in bent shape with \(119^{\circ}\) bond angle. So option (2) is correct.
CHXI11:THE P-BLOCK ELEMENTS
317051
What is the \(\mathrm{H}-\mathrm{S}-\mathrm{H}\) bond angle in \(\mathrm{H}_{2} \mathrm{~S}\) ?
1 \(104.5^{\circ}\)
2 \(92.1^{\circ}\)
3 \(91^{\circ}\)
4 thionyl chloride.
Explanation:
The \(\mathrm{H}-\mathrm{S}-\mathrm{H}\) bond angle in \(\mathrm{H}_{2} \mathrm{~S}\) is \(92.1^{\circ}\) which is slightly lesser than the tetrahedral angle. As sulphur is less electronegative and hence less repulsion is present
317047
Which one can be used as a test for \({{\rm{H}}_{\rm{2}}}{\rm{S}}\) gas?
1 A smell of rotten egg
2 A violet colouration with sodium nitroprusside
3 Turning lead acetate paper black
4 All of these
Explanation:
Conceptual Questions
CHXI11:THE P-BLOCK ELEMENTS
317048
If the supply of oxygen is limited, \(\mathrm{H}_{2} \mathrm{~S}\) reacts with \(\mathrm{O}_{2}\) to form
1 \(\mathrm{H}_{2} \mathrm{O}+\mathrm{SO}_{3}\)
2 \(\mathrm{H}_{2} \mathrm{O}+\mathrm{S}\)
3 \(\mathrm{H}_{2} \mathrm{SO}_{4}+\mathrm{S}\)
4 \(\mathrm{H}_{2} \mathrm{O}+\mathrm{SO}_{2}\)
Explanation:
In limited supply of oxygen, \(\mathrm{H}_{2} \mathrm{~S}\) burns with blue flame and \(\mathrm{S}\) and \(\mathrm{H}_{2} \mathrm{O}\) are the main products \(2{{\rm{H}}_2}\;{\rm{S}} + {{\rm{O}}_2} \to 2{{\rm{H}}_2}{\rm{O}} + 2\;{\rm{S}}\) Note In excess of oxygen, \(\mathrm{H}_{2} \mathrm{~S}\) gives \(\mathrm{SO}_{2}\) and water as main product.
CHXI11:THE P-BLOCK ELEMENTS
317049
What is the number of \({\mathrm{\sigma}}\) bonds present in peroxodisulphuri acid?
1 3
2 5
3 7
4 9
Explanation:
Number of \({\mathrm{\sigma}}\) bonds \({\mathrm{=9}}\).
CHXI11:THE P-BLOCK ELEMENTS
317050
Assertion : In \(\mathrm{SO}_{2}\), the bond angle is \(119^{\circ}\) whereas in \(\mathrm{SO}_{3}\), the bond angle is \(120^{\circ}\). Reason : \(\mathrm{S}\) atom in both \(\mathrm{SO}_{2}\) and \(\mathrm{SO}_{3}\) is \(\mathrm{sp}^{2}-\) hybridized.
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:
\(\mathrm{S}\) atom in both \(\mathrm{SO}_{2}\) and \(\mathrm{SO}_{3}\) is \(\mathrm{sp}^{2}\) hybridized. But it contains a lone-pair of electrons in \(\mathrm{SO}_{2}\) which results in bent shape with \(119^{\circ}\) bond angle. So option (2) is correct.
CHXI11:THE P-BLOCK ELEMENTS
317051
What is the \(\mathrm{H}-\mathrm{S}-\mathrm{H}\) bond angle in \(\mathrm{H}_{2} \mathrm{~S}\) ?
1 \(104.5^{\circ}\)
2 \(92.1^{\circ}\)
3 \(91^{\circ}\)
4 thionyl chloride.
Explanation:
The \(\mathrm{H}-\mathrm{S}-\mathrm{H}\) bond angle in \(\mathrm{H}_{2} \mathrm{~S}\) is \(92.1^{\circ}\) which is slightly lesser than the tetrahedral angle. As sulphur is less electronegative and hence less repulsion is present
317047
Which one can be used as a test for \({{\rm{H}}_{\rm{2}}}{\rm{S}}\) gas?
1 A smell of rotten egg
2 A violet colouration with sodium nitroprusside
3 Turning lead acetate paper black
4 All of these
Explanation:
Conceptual Questions
CHXI11:THE P-BLOCK ELEMENTS
317048
If the supply of oxygen is limited, \(\mathrm{H}_{2} \mathrm{~S}\) reacts with \(\mathrm{O}_{2}\) to form
1 \(\mathrm{H}_{2} \mathrm{O}+\mathrm{SO}_{3}\)
2 \(\mathrm{H}_{2} \mathrm{O}+\mathrm{S}\)
3 \(\mathrm{H}_{2} \mathrm{SO}_{4}+\mathrm{S}\)
4 \(\mathrm{H}_{2} \mathrm{O}+\mathrm{SO}_{2}\)
Explanation:
In limited supply of oxygen, \(\mathrm{H}_{2} \mathrm{~S}\) burns with blue flame and \(\mathrm{S}\) and \(\mathrm{H}_{2} \mathrm{O}\) are the main products \(2{{\rm{H}}_2}\;{\rm{S}} + {{\rm{O}}_2} \to 2{{\rm{H}}_2}{\rm{O}} + 2\;{\rm{S}}\) Note In excess of oxygen, \(\mathrm{H}_{2} \mathrm{~S}\) gives \(\mathrm{SO}_{2}\) and water as main product.
CHXI11:THE P-BLOCK ELEMENTS
317049
What is the number of \({\mathrm{\sigma}}\) bonds present in peroxodisulphuri acid?
1 3
2 5
3 7
4 9
Explanation:
Number of \({\mathrm{\sigma}}\) bonds \({\mathrm{=9}}\).
CHXI11:THE P-BLOCK ELEMENTS
317050
Assertion : In \(\mathrm{SO}_{2}\), the bond angle is \(119^{\circ}\) whereas in \(\mathrm{SO}_{3}\), the bond angle is \(120^{\circ}\). Reason : \(\mathrm{S}\) atom in both \(\mathrm{SO}_{2}\) and \(\mathrm{SO}_{3}\) is \(\mathrm{sp}^{2}-\) hybridized.
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:
\(\mathrm{S}\) atom in both \(\mathrm{SO}_{2}\) and \(\mathrm{SO}_{3}\) is \(\mathrm{sp}^{2}\) hybridized. But it contains a lone-pair of electrons in \(\mathrm{SO}_{2}\) which results in bent shape with \(119^{\circ}\) bond angle. So option (2) is correct.
CHXI11:THE P-BLOCK ELEMENTS
317051
What is the \(\mathrm{H}-\mathrm{S}-\mathrm{H}\) bond angle in \(\mathrm{H}_{2} \mathrm{~S}\) ?
1 \(104.5^{\circ}\)
2 \(92.1^{\circ}\)
3 \(91^{\circ}\)
4 thionyl chloride.
Explanation:
The \(\mathrm{H}-\mathrm{S}-\mathrm{H}\) bond angle in \(\mathrm{H}_{2} \mathrm{~S}\) is \(92.1^{\circ}\) which is slightly lesser than the tetrahedral angle. As sulphur is less electronegative and hence less repulsion is present
317047
Which one can be used as a test for \({{\rm{H}}_{\rm{2}}}{\rm{S}}\) gas?
1 A smell of rotten egg
2 A violet colouration with sodium nitroprusside
3 Turning lead acetate paper black
4 All of these
Explanation:
Conceptual Questions
CHXI11:THE P-BLOCK ELEMENTS
317048
If the supply of oxygen is limited, \(\mathrm{H}_{2} \mathrm{~S}\) reacts with \(\mathrm{O}_{2}\) to form
1 \(\mathrm{H}_{2} \mathrm{O}+\mathrm{SO}_{3}\)
2 \(\mathrm{H}_{2} \mathrm{O}+\mathrm{S}\)
3 \(\mathrm{H}_{2} \mathrm{SO}_{4}+\mathrm{S}\)
4 \(\mathrm{H}_{2} \mathrm{O}+\mathrm{SO}_{2}\)
Explanation:
In limited supply of oxygen, \(\mathrm{H}_{2} \mathrm{~S}\) burns with blue flame and \(\mathrm{S}\) and \(\mathrm{H}_{2} \mathrm{O}\) are the main products \(2{{\rm{H}}_2}\;{\rm{S}} + {{\rm{O}}_2} \to 2{{\rm{H}}_2}{\rm{O}} + 2\;{\rm{S}}\) Note In excess of oxygen, \(\mathrm{H}_{2} \mathrm{~S}\) gives \(\mathrm{SO}_{2}\) and water as main product.
CHXI11:THE P-BLOCK ELEMENTS
317049
What is the number of \({\mathrm{\sigma}}\) bonds present in peroxodisulphuri acid?
1 3
2 5
3 7
4 9
Explanation:
Number of \({\mathrm{\sigma}}\) bonds \({\mathrm{=9}}\).
CHXI11:THE P-BLOCK ELEMENTS
317050
Assertion : In \(\mathrm{SO}_{2}\), the bond angle is \(119^{\circ}\) whereas in \(\mathrm{SO}_{3}\), the bond angle is \(120^{\circ}\). Reason : \(\mathrm{S}\) atom in both \(\mathrm{SO}_{2}\) and \(\mathrm{SO}_{3}\) is \(\mathrm{sp}^{2}-\) hybridized.
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:
\(\mathrm{S}\) atom in both \(\mathrm{SO}_{2}\) and \(\mathrm{SO}_{3}\) is \(\mathrm{sp}^{2}\) hybridized. But it contains a lone-pair of electrons in \(\mathrm{SO}_{2}\) which results in bent shape with \(119^{\circ}\) bond angle. So option (2) is correct.
CHXI11:THE P-BLOCK ELEMENTS
317051
What is the \(\mathrm{H}-\mathrm{S}-\mathrm{H}\) bond angle in \(\mathrm{H}_{2} \mathrm{~S}\) ?
1 \(104.5^{\circ}\)
2 \(92.1^{\circ}\)
3 \(91^{\circ}\)
4 thionyl chloride.
Explanation:
The \(\mathrm{H}-\mathrm{S}-\mathrm{H}\) bond angle in \(\mathrm{H}_{2} \mathrm{~S}\) is \(92.1^{\circ}\) which is slightly lesser than the tetrahedral angle. As sulphur is less electronegative and hence less repulsion is present
317047
Which one can be used as a test for \({{\rm{H}}_{\rm{2}}}{\rm{S}}\) gas?
1 A smell of rotten egg
2 A violet colouration with sodium nitroprusside
3 Turning lead acetate paper black
4 All of these
Explanation:
Conceptual Questions
CHXI11:THE P-BLOCK ELEMENTS
317048
If the supply of oxygen is limited, \(\mathrm{H}_{2} \mathrm{~S}\) reacts with \(\mathrm{O}_{2}\) to form
1 \(\mathrm{H}_{2} \mathrm{O}+\mathrm{SO}_{3}\)
2 \(\mathrm{H}_{2} \mathrm{O}+\mathrm{S}\)
3 \(\mathrm{H}_{2} \mathrm{SO}_{4}+\mathrm{S}\)
4 \(\mathrm{H}_{2} \mathrm{O}+\mathrm{SO}_{2}\)
Explanation:
In limited supply of oxygen, \(\mathrm{H}_{2} \mathrm{~S}\) burns with blue flame and \(\mathrm{S}\) and \(\mathrm{H}_{2} \mathrm{O}\) are the main products \(2{{\rm{H}}_2}\;{\rm{S}} + {{\rm{O}}_2} \to 2{{\rm{H}}_2}{\rm{O}} + 2\;{\rm{S}}\) Note In excess of oxygen, \(\mathrm{H}_{2} \mathrm{~S}\) gives \(\mathrm{SO}_{2}\) and water as main product.
CHXI11:THE P-BLOCK ELEMENTS
317049
What is the number of \({\mathrm{\sigma}}\) bonds present in peroxodisulphuri acid?
1 3
2 5
3 7
4 9
Explanation:
Number of \({\mathrm{\sigma}}\) bonds \({\mathrm{=9}}\).
CHXI11:THE P-BLOCK ELEMENTS
317050
Assertion : In \(\mathrm{SO}_{2}\), the bond angle is \(119^{\circ}\) whereas in \(\mathrm{SO}_{3}\), the bond angle is \(120^{\circ}\). Reason : \(\mathrm{S}\) atom in both \(\mathrm{SO}_{2}\) and \(\mathrm{SO}_{3}\) is \(\mathrm{sp}^{2}-\) hybridized.
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:
\(\mathrm{S}\) atom in both \(\mathrm{SO}_{2}\) and \(\mathrm{SO}_{3}\) is \(\mathrm{sp}^{2}\) hybridized. But it contains a lone-pair of electrons in \(\mathrm{SO}_{2}\) which results in bent shape with \(119^{\circ}\) bond angle. So option (2) is correct.
CHXI11:THE P-BLOCK ELEMENTS
317051
What is the \(\mathrm{H}-\mathrm{S}-\mathrm{H}\) bond angle in \(\mathrm{H}_{2} \mathrm{~S}\) ?
1 \(104.5^{\circ}\)
2 \(92.1^{\circ}\)
3 \(91^{\circ}\)
4 thionyl chloride.
Explanation:
The \(\mathrm{H}-\mathrm{S}-\mathrm{H}\) bond angle in \(\mathrm{H}_{2} \mathrm{~S}\) is \(92.1^{\circ}\) which is slightly lesser than the tetrahedral angle. As sulphur is less electronegative and hence less repulsion is present
