316331
The number of paramagnetic species from the following is ____ . \({\mathrm{\mathrm{Cl}_{2} \mathrm{O}, \mathrm{ClO}_{2}, \mathrm{Cl}_{2} \mathrm{O}_{6}, \mathrm{Cl}_{2} \mathrm{O}_{7}}}\)
1 1
2 2
3 3
4 4
Explanation:
Only \({\mathrm{\mathrm{ClO}_{2}}}\) is paramagnetic.
CHXI11:THE P-BLOCK ELEMENTS
316332
Yellow colour of chlorine water fades because of
1 Form action of \(\mathrm{HCl}\) and \(\mathrm{HOCl}\)
2 Chlorine gas escapes
3 \(\mathrm{ClO}_{2}+\mathrm{H}_{2}\)
4 \(\mathrm{Cl}_{2} \mathrm{O}\)
Explanation:
Chlorine water on standing loses yellow colour due to formation of \(\mathrm{HCl}\) and \(\mathrm{HOCl}\) which in turn provides nascent oxygen. \(\begin{aligned}& \mathrm{Cl}_{2}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{HCl}+\mathrm{HOCl} \\& \mathrm{HClO} \rightarrow \mathrm{HCl}+\underset{\text { Nascent oxygen }}{[\mathrm{O}]}\end{aligned}\)
AIIMS - 2019
CHXI11:THE P-BLOCK ELEMENTS
316333
Decomposition of ozone can be caused by
1 atomic helium
2 water vapour
3 dust particles
4 atomic chlorine.
Explanation:
Decomposition of ozone can be caused by atomic chlorine which leads to depletion of ozone layer.
CHXI11:THE P-BLOCK ELEMENTS
316334
The number of lone pairs of electrons on Cl in a \({\mathrm{\mathrm{ClF}_{3}}}\) molecule is ____ .
1 0
2 2
3 1
4 5
Explanation:
The structure of \({\mathrm{\mathrm{ClF}_{3}}}\) is as follows:
CHXI11:THE P-BLOCK ELEMENTS
316335
Explain why the stability of oxoacids of chlorine increases in the order given below : \(\mathrm{HClO} < \mathrm{HClO}_{2} < \mathrm{HClO}_{3} < \mathrm{HClO}_{4}\)
1 Dispersal of negative charge on Chlorine increases with number of oxygens
2 More oxygen more stability
3 Oxygen forms double bonds with chlorine
4 Chlorine donates electrons to oxygen
Explanation:
Oxygen is more electronegative than chlorine, therefore dispersal of negative charge present on chlorine increases from \(\mathrm{ClO}^{-}\)to \(\mathrm{ClO}_{4}^{-}\) ion because number of oxygen atoms attached to chlorine is increasing. Therefore, stability of ions will increase in the order given below: \(\mathrm{ClO}^{-} < \mathrm{ClO}_{2}^{-} < \mathrm{ClO}_{3}^{-} < \mathrm{ClO}_{4}^{-}\) Thus, due to increase in stability of conjugate base, acidic strength of corresponding acid increases in the following order: \(\mathrm{HClO} < \mathrm{HClO}_{2} < \mathrm{HClO}_{3} < \mathrm{HClO}_{4}\)
316331
The number of paramagnetic species from the following is ____ . \({\mathrm{\mathrm{Cl}_{2} \mathrm{O}, \mathrm{ClO}_{2}, \mathrm{Cl}_{2} \mathrm{O}_{6}, \mathrm{Cl}_{2} \mathrm{O}_{7}}}\)
1 1
2 2
3 3
4 4
Explanation:
Only \({\mathrm{\mathrm{ClO}_{2}}}\) is paramagnetic.
CHXI11:THE P-BLOCK ELEMENTS
316332
Yellow colour of chlorine water fades because of
1 Form action of \(\mathrm{HCl}\) and \(\mathrm{HOCl}\)
2 Chlorine gas escapes
3 \(\mathrm{ClO}_{2}+\mathrm{H}_{2}\)
4 \(\mathrm{Cl}_{2} \mathrm{O}\)
Explanation:
Chlorine water on standing loses yellow colour due to formation of \(\mathrm{HCl}\) and \(\mathrm{HOCl}\) which in turn provides nascent oxygen. \(\begin{aligned}& \mathrm{Cl}_{2}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{HCl}+\mathrm{HOCl} \\& \mathrm{HClO} \rightarrow \mathrm{HCl}+\underset{\text { Nascent oxygen }}{[\mathrm{O}]}\end{aligned}\)
AIIMS - 2019
CHXI11:THE P-BLOCK ELEMENTS
316333
Decomposition of ozone can be caused by
1 atomic helium
2 water vapour
3 dust particles
4 atomic chlorine.
Explanation:
Decomposition of ozone can be caused by atomic chlorine which leads to depletion of ozone layer.
CHXI11:THE P-BLOCK ELEMENTS
316334
The number of lone pairs of electrons on Cl in a \({\mathrm{\mathrm{ClF}_{3}}}\) molecule is ____ .
1 0
2 2
3 1
4 5
Explanation:
The structure of \({\mathrm{\mathrm{ClF}_{3}}}\) is as follows:
CHXI11:THE P-BLOCK ELEMENTS
316335
Explain why the stability of oxoacids of chlorine increases in the order given below : \(\mathrm{HClO} < \mathrm{HClO}_{2} < \mathrm{HClO}_{3} < \mathrm{HClO}_{4}\)
1 Dispersal of negative charge on Chlorine increases with number of oxygens
2 More oxygen more stability
3 Oxygen forms double bonds with chlorine
4 Chlorine donates electrons to oxygen
Explanation:
Oxygen is more electronegative than chlorine, therefore dispersal of negative charge present on chlorine increases from \(\mathrm{ClO}^{-}\)to \(\mathrm{ClO}_{4}^{-}\) ion because number of oxygen atoms attached to chlorine is increasing. Therefore, stability of ions will increase in the order given below: \(\mathrm{ClO}^{-} < \mathrm{ClO}_{2}^{-} < \mathrm{ClO}_{3}^{-} < \mathrm{ClO}_{4}^{-}\) Thus, due to increase in stability of conjugate base, acidic strength of corresponding acid increases in the following order: \(\mathrm{HClO} < \mathrm{HClO}_{2} < \mathrm{HClO}_{3} < \mathrm{HClO}_{4}\)
316331
The number of paramagnetic species from the following is ____ . \({\mathrm{\mathrm{Cl}_{2} \mathrm{O}, \mathrm{ClO}_{2}, \mathrm{Cl}_{2} \mathrm{O}_{6}, \mathrm{Cl}_{2} \mathrm{O}_{7}}}\)
1 1
2 2
3 3
4 4
Explanation:
Only \({\mathrm{\mathrm{ClO}_{2}}}\) is paramagnetic.
CHXI11:THE P-BLOCK ELEMENTS
316332
Yellow colour of chlorine water fades because of
1 Form action of \(\mathrm{HCl}\) and \(\mathrm{HOCl}\)
2 Chlorine gas escapes
3 \(\mathrm{ClO}_{2}+\mathrm{H}_{2}\)
4 \(\mathrm{Cl}_{2} \mathrm{O}\)
Explanation:
Chlorine water on standing loses yellow colour due to formation of \(\mathrm{HCl}\) and \(\mathrm{HOCl}\) which in turn provides nascent oxygen. \(\begin{aligned}& \mathrm{Cl}_{2}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{HCl}+\mathrm{HOCl} \\& \mathrm{HClO} \rightarrow \mathrm{HCl}+\underset{\text { Nascent oxygen }}{[\mathrm{O}]}\end{aligned}\)
AIIMS - 2019
CHXI11:THE P-BLOCK ELEMENTS
316333
Decomposition of ozone can be caused by
1 atomic helium
2 water vapour
3 dust particles
4 atomic chlorine.
Explanation:
Decomposition of ozone can be caused by atomic chlorine which leads to depletion of ozone layer.
CHXI11:THE P-BLOCK ELEMENTS
316334
The number of lone pairs of electrons on Cl in a \({\mathrm{\mathrm{ClF}_{3}}}\) molecule is ____ .
1 0
2 2
3 1
4 5
Explanation:
The structure of \({\mathrm{\mathrm{ClF}_{3}}}\) is as follows:
CHXI11:THE P-BLOCK ELEMENTS
316335
Explain why the stability of oxoacids of chlorine increases in the order given below : \(\mathrm{HClO} < \mathrm{HClO}_{2} < \mathrm{HClO}_{3} < \mathrm{HClO}_{4}\)
1 Dispersal of negative charge on Chlorine increases with number of oxygens
2 More oxygen more stability
3 Oxygen forms double bonds with chlorine
4 Chlorine donates electrons to oxygen
Explanation:
Oxygen is more electronegative than chlorine, therefore dispersal of negative charge present on chlorine increases from \(\mathrm{ClO}^{-}\)to \(\mathrm{ClO}_{4}^{-}\) ion because number of oxygen atoms attached to chlorine is increasing. Therefore, stability of ions will increase in the order given below: \(\mathrm{ClO}^{-} < \mathrm{ClO}_{2}^{-} < \mathrm{ClO}_{3}^{-} < \mathrm{ClO}_{4}^{-}\) Thus, due to increase in stability of conjugate base, acidic strength of corresponding acid increases in the following order: \(\mathrm{HClO} < \mathrm{HClO}_{2} < \mathrm{HClO}_{3} < \mathrm{HClO}_{4}\)
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
CHXI11:THE P-BLOCK ELEMENTS
316331
The number of paramagnetic species from the following is ____ . \({\mathrm{\mathrm{Cl}_{2} \mathrm{O}, \mathrm{ClO}_{2}, \mathrm{Cl}_{2} \mathrm{O}_{6}, \mathrm{Cl}_{2} \mathrm{O}_{7}}}\)
1 1
2 2
3 3
4 4
Explanation:
Only \({\mathrm{\mathrm{ClO}_{2}}}\) is paramagnetic.
CHXI11:THE P-BLOCK ELEMENTS
316332
Yellow colour of chlorine water fades because of
1 Form action of \(\mathrm{HCl}\) and \(\mathrm{HOCl}\)
2 Chlorine gas escapes
3 \(\mathrm{ClO}_{2}+\mathrm{H}_{2}\)
4 \(\mathrm{Cl}_{2} \mathrm{O}\)
Explanation:
Chlorine water on standing loses yellow colour due to formation of \(\mathrm{HCl}\) and \(\mathrm{HOCl}\) which in turn provides nascent oxygen. \(\begin{aligned}& \mathrm{Cl}_{2}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{HCl}+\mathrm{HOCl} \\& \mathrm{HClO} \rightarrow \mathrm{HCl}+\underset{\text { Nascent oxygen }}{[\mathrm{O}]}\end{aligned}\)
AIIMS - 2019
CHXI11:THE P-BLOCK ELEMENTS
316333
Decomposition of ozone can be caused by
1 atomic helium
2 water vapour
3 dust particles
4 atomic chlorine.
Explanation:
Decomposition of ozone can be caused by atomic chlorine which leads to depletion of ozone layer.
CHXI11:THE P-BLOCK ELEMENTS
316334
The number of lone pairs of electrons on Cl in a \({\mathrm{\mathrm{ClF}_{3}}}\) molecule is ____ .
1 0
2 2
3 1
4 5
Explanation:
The structure of \({\mathrm{\mathrm{ClF}_{3}}}\) is as follows:
CHXI11:THE P-BLOCK ELEMENTS
316335
Explain why the stability of oxoacids of chlorine increases in the order given below : \(\mathrm{HClO} < \mathrm{HClO}_{2} < \mathrm{HClO}_{3} < \mathrm{HClO}_{4}\)
1 Dispersal of negative charge on Chlorine increases with number of oxygens
2 More oxygen more stability
3 Oxygen forms double bonds with chlorine
4 Chlorine donates electrons to oxygen
Explanation:
Oxygen is more electronegative than chlorine, therefore dispersal of negative charge present on chlorine increases from \(\mathrm{ClO}^{-}\)to \(\mathrm{ClO}_{4}^{-}\) ion because number of oxygen atoms attached to chlorine is increasing. Therefore, stability of ions will increase in the order given below: \(\mathrm{ClO}^{-} < \mathrm{ClO}_{2}^{-} < \mathrm{ClO}_{3}^{-} < \mathrm{ClO}_{4}^{-}\) Thus, due to increase in stability of conjugate base, acidic strength of corresponding acid increases in the following order: \(\mathrm{HClO} < \mathrm{HClO}_{2} < \mathrm{HClO}_{3} < \mathrm{HClO}_{4}\)
316331
The number of paramagnetic species from the following is ____ . \({\mathrm{\mathrm{Cl}_{2} \mathrm{O}, \mathrm{ClO}_{2}, \mathrm{Cl}_{2} \mathrm{O}_{6}, \mathrm{Cl}_{2} \mathrm{O}_{7}}}\)
1 1
2 2
3 3
4 4
Explanation:
Only \({\mathrm{\mathrm{ClO}_{2}}}\) is paramagnetic.
CHXI11:THE P-BLOCK ELEMENTS
316332
Yellow colour of chlorine water fades because of
1 Form action of \(\mathrm{HCl}\) and \(\mathrm{HOCl}\)
2 Chlorine gas escapes
3 \(\mathrm{ClO}_{2}+\mathrm{H}_{2}\)
4 \(\mathrm{Cl}_{2} \mathrm{O}\)
Explanation:
Chlorine water on standing loses yellow colour due to formation of \(\mathrm{HCl}\) and \(\mathrm{HOCl}\) which in turn provides nascent oxygen. \(\begin{aligned}& \mathrm{Cl}_{2}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{HCl}+\mathrm{HOCl} \\& \mathrm{HClO} \rightarrow \mathrm{HCl}+\underset{\text { Nascent oxygen }}{[\mathrm{O}]}\end{aligned}\)
AIIMS - 2019
CHXI11:THE P-BLOCK ELEMENTS
316333
Decomposition of ozone can be caused by
1 atomic helium
2 water vapour
3 dust particles
4 atomic chlorine.
Explanation:
Decomposition of ozone can be caused by atomic chlorine which leads to depletion of ozone layer.
CHXI11:THE P-BLOCK ELEMENTS
316334
The number of lone pairs of electrons on Cl in a \({\mathrm{\mathrm{ClF}_{3}}}\) molecule is ____ .
1 0
2 2
3 1
4 5
Explanation:
The structure of \({\mathrm{\mathrm{ClF}_{3}}}\) is as follows:
CHXI11:THE P-BLOCK ELEMENTS
316335
Explain why the stability of oxoacids of chlorine increases in the order given below : \(\mathrm{HClO} < \mathrm{HClO}_{2} < \mathrm{HClO}_{3} < \mathrm{HClO}_{4}\)
1 Dispersal of negative charge on Chlorine increases with number of oxygens
2 More oxygen more stability
3 Oxygen forms double bonds with chlorine
4 Chlorine donates electrons to oxygen
Explanation:
Oxygen is more electronegative than chlorine, therefore dispersal of negative charge present on chlorine increases from \(\mathrm{ClO}^{-}\)to \(\mathrm{ClO}_{4}^{-}\) ion because number of oxygen atoms attached to chlorine is increasing. Therefore, stability of ions will increase in the order given below: \(\mathrm{ClO}^{-} < \mathrm{ClO}_{2}^{-} < \mathrm{ClO}_{3}^{-} < \mathrm{ClO}_{4}^{-}\) Thus, due to increase in stability of conjugate base, acidic strength of corresponding acid increases in the following order: \(\mathrm{HClO} < \mathrm{HClO}_{2} < \mathrm{HClO}_{3} < \mathrm{HClO}_{4}\)
