318933
The ionic radii of \(A^{+}\)and \(B^{-}\)ions are \(0.98 \times 10^{-10}\) and \(1.81 \times 10^{-10} \mathrm{~m}\). The coordination number of each ion in \(\mathrm{AB}\) is:
1 2
2 6
3 4
4 8
Explanation:
\(\dfrac{r_{A^{+}}}{r_{B^{+}}}=\dfrac{0.98 \times 10^{-10}}{1.81 \times 10^{-10}}=0.54\) As \(\dfrac{r^{+}}{r^{-}}\)is in range \(0.414-0.732\), the structure is octahedral. Co-ordination no. of each ion is 6 like \(\mathrm{NaCl}\) structure.
NEET - 2016
CHXII01:THE SOLID STATE
318934
In \(A^{+} B^{-}\)ionic compound, radii of \(A^{+}\)and \(B^{-}\) ions are \(180 \mathrm{pm}\) and \(187 \mathrm{pm}\) respectively. The crystal structure of this compound will be
1 CsCl type
2 \(\mathrm{NaCl}\) type
3 Similar to diamond
4 Zns type
Explanation:
\(\dfrac{r_{+}}{r_{-}}=\dfrac{180}{187}=0.962\) which lies in the range of \(0.732-0.999\), hence, co-ordination number \(=\) 8, i.e., the structure is \(\mathrm{CsCl}\) type.
CHXII01:THE SOLID STATE
318935
For tetrahedral coordination, the radius ratio \(\left( {\frac{{{{\text{r}}_ + }}}{{{{\text{r}}_ - }}}} \right)\) should be
1 \(0.414-0.732\)
2 \(>0.732\)
3 \(0.156-0.225\)
4 \(0.225-0.414\)
Explanation:
For tetrahedral coordination, the radius ratio \(\left( {\frac{{{{\text{r}}_ + }}}{{{{\text{r}}_ - }}}} \right)\) should be \(0.225-0.414\). For other, the radius ratio are as follows: \(0.414-0.732 \rightarrow\) Octahedral coordination; \(0.732-1 \rightarrow\) Cubic or body centred; 0.156-0.225 \(\rightarrow\) Planar triangular
CHXII01:THE SOLID STATE
318936
The limiting radius ratio for tetrahedral shape is
NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXII01:THE SOLID STATE
318933
The ionic radii of \(A^{+}\)and \(B^{-}\)ions are \(0.98 \times 10^{-10}\) and \(1.81 \times 10^{-10} \mathrm{~m}\). The coordination number of each ion in \(\mathrm{AB}\) is:
1 2
2 6
3 4
4 8
Explanation:
\(\dfrac{r_{A^{+}}}{r_{B^{+}}}=\dfrac{0.98 \times 10^{-10}}{1.81 \times 10^{-10}}=0.54\) As \(\dfrac{r^{+}}{r^{-}}\)is in range \(0.414-0.732\), the structure is octahedral. Co-ordination no. of each ion is 6 like \(\mathrm{NaCl}\) structure.
NEET - 2016
CHXII01:THE SOLID STATE
318934
In \(A^{+} B^{-}\)ionic compound, radii of \(A^{+}\)and \(B^{-}\) ions are \(180 \mathrm{pm}\) and \(187 \mathrm{pm}\) respectively. The crystal structure of this compound will be
1 CsCl type
2 \(\mathrm{NaCl}\) type
3 Similar to diamond
4 Zns type
Explanation:
\(\dfrac{r_{+}}{r_{-}}=\dfrac{180}{187}=0.962\) which lies in the range of \(0.732-0.999\), hence, co-ordination number \(=\) 8, i.e., the structure is \(\mathrm{CsCl}\) type.
CHXII01:THE SOLID STATE
318935
For tetrahedral coordination, the radius ratio \(\left( {\frac{{{{\text{r}}_ + }}}{{{{\text{r}}_ - }}}} \right)\) should be
1 \(0.414-0.732\)
2 \(>0.732\)
3 \(0.156-0.225\)
4 \(0.225-0.414\)
Explanation:
For tetrahedral coordination, the radius ratio \(\left( {\frac{{{{\text{r}}_ + }}}{{{{\text{r}}_ - }}}} \right)\) should be \(0.225-0.414\). For other, the radius ratio are as follows: \(0.414-0.732 \rightarrow\) Octahedral coordination; \(0.732-1 \rightarrow\) Cubic or body centred; 0.156-0.225 \(\rightarrow\) Planar triangular
CHXII01:THE SOLID STATE
318936
The limiting radius ratio for tetrahedral shape is
318933
The ionic radii of \(A^{+}\)and \(B^{-}\)ions are \(0.98 \times 10^{-10}\) and \(1.81 \times 10^{-10} \mathrm{~m}\). The coordination number of each ion in \(\mathrm{AB}\) is:
1 2
2 6
3 4
4 8
Explanation:
\(\dfrac{r_{A^{+}}}{r_{B^{+}}}=\dfrac{0.98 \times 10^{-10}}{1.81 \times 10^{-10}}=0.54\) As \(\dfrac{r^{+}}{r^{-}}\)is in range \(0.414-0.732\), the structure is octahedral. Co-ordination no. of each ion is 6 like \(\mathrm{NaCl}\) structure.
NEET - 2016
CHXII01:THE SOLID STATE
318934
In \(A^{+} B^{-}\)ionic compound, radii of \(A^{+}\)and \(B^{-}\) ions are \(180 \mathrm{pm}\) and \(187 \mathrm{pm}\) respectively. The crystal structure of this compound will be
1 CsCl type
2 \(\mathrm{NaCl}\) type
3 Similar to diamond
4 Zns type
Explanation:
\(\dfrac{r_{+}}{r_{-}}=\dfrac{180}{187}=0.962\) which lies in the range of \(0.732-0.999\), hence, co-ordination number \(=\) 8, i.e., the structure is \(\mathrm{CsCl}\) type.
CHXII01:THE SOLID STATE
318935
For tetrahedral coordination, the radius ratio \(\left( {\frac{{{{\text{r}}_ + }}}{{{{\text{r}}_ - }}}} \right)\) should be
1 \(0.414-0.732\)
2 \(>0.732\)
3 \(0.156-0.225\)
4 \(0.225-0.414\)
Explanation:
For tetrahedral coordination, the radius ratio \(\left( {\frac{{{{\text{r}}_ + }}}{{{{\text{r}}_ - }}}} \right)\) should be \(0.225-0.414\). For other, the radius ratio are as follows: \(0.414-0.732 \rightarrow\) Octahedral coordination; \(0.732-1 \rightarrow\) Cubic or body centred; 0.156-0.225 \(\rightarrow\) Planar triangular
CHXII01:THE SOLID STATE
318936
The limiting radius ratio for tetrahedral shape is
318933
The ionic radii of \(A^{+}\)and \(B^{-}\)ions are \(0.98 \times 10^{-10}\) and \(1.81 \times 10^{-10} \mathrm{~m}\). The coordination number of each ion in \(\mathrm{AB}\) is:
1 2
2 6
3 4
4 8
Explanation:
\(\dfrac{r_{A^{+}}}{r_{B^{+}}}=\dfrac{0.98 \times 10^{-10}}{1.81 \times 10^{-10}}=0.54\) As \(\dfrac{r^{+}}{r^{-}}\)is in range \(0.414-0.732\), the structure is octahedral. Co-ordination no. of each ion is 6 like \(\mathrm{NaCl}\) structure.
NEET - 2016
CHXII01:THE SOLID STATE
318934
In \(A^{+} B^{-}\)ionic compound, radii of \(A^{+}\)and \(B^{-}\) ions are \(180 \mathrm{pm}\) and \(187 \mathrm{pm}\) respectively. The crystal structure of this compound will be
1 CsCl type
2 \(\mathrm{NaCl}\) type
3 Similar to diamond
4 Zns type
Explanation:
\(\dfrac{r_{+}}{r_{-}}=\dfrac{180}{187}=0.962\) which lies in the range of \(0.732-0.999\), hence, co-ordination number \(=\) 8, i.e., the structure is \(\mathrm{CsCl}\) type.
CHXII01:THE SOLID STATE
318935
For tetrahedral coordination, the radius ratio \(\left( {\frac{{{{\text{r}}_ + }}}{{{{\text{r}}_ - }}}} \right)\) should be
1 \(0.414-0.732\)
2 \(>0.732\)
3 \(0.156-0.225\)
4 \(0.225-0.414\)
Explanation:
For tetrahedral coordination, the radius ratio \(\left( {\frac{{{{\text{r}}_ + }}}{{{{\text{r}}_ - }}}} \right)\) should be \(0.225-0.414\). For other, the radius ratio are as follows: \(0.414-0.732 \rightarrow\) Octahedral coordination; \(0.732-1 \rightarrow\) Cubic or body centred; 0.156-0.225 \(\rightarrow\) Planar triangular
CHXII01:THE SOLID STATE
318936
The limiting radius ratio for tetrahedral shape is