189320
Atomic number of \(N\) is \(7\). The atomic number of 3rd member of nitrogen family is
1 \(23\)
2 \(15\)
3 \(33\)
4 \(43\)
Explanation:
(c)
\(I\) \( II\) \( III\) \(IV\) \(V\)
Element - \(N\) \(P\) \(As\) \(Sb\) \(Bi\)
Atomic No. - \(7\) \(15\) \(33\) \(51\) \(83\)
07. The p-BLOCK ELEMENTS (XII)
189321
Which of the following have least covalent \(P - H\) bond
1 \(P{H_3}\)
2 \({P_2}{H_6}\)
3 \({P_2}{H_5}\)
4 \(PH_6^ +\)
Explanation:
In \(PH _6^{+}, P - H\) bond will be ionic due to electron attracting tendency of \(P\).
07. The p-BLOCK ELEMENTS (XII)
189323
Which of the following compound is tribasic acid
1 \({H_3}P{O_2}\)
2 \({H_3}P{O_3}\)
3 \({H_3}P{O_4}\)
4 \({H_4}{P_2}{O_7}\)
Explanation:
(c) It is ionizes in three steps because three \(-OH\) group are present. $\begin{array}{*{20}{c}} {\begin{array}{*{20}{c}} O \\ {||} \end{array}} \\ {HO - P - OH} \\ | \\ {\,\,\,\,\,OH} \end{array}$
07. The p-BLOCK ELEMENTS (XII)
189326
In compounds of type \(EC{l_3}\), where \(E = B,\) \(P\), \(As\) or \(Bi\), the angles \(Cl - E - Cl\) for different \(E\) are in the order
1 \(B > P = As = Bi\)
2 \(B > P > As > Bi\)
3 \(B < P = As = Bi\)
4 \(B < P < As < Bi\)
Explanation:
(b) \(B > P > As > Bi\) As we go down the group bond angle decreases because repulsion between bonded pairs of electron decreases.
NEET Test Series from KOTA - 10 Papers In MS WORD
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07. The p-BLOCK ELEMENTS (XII)
189320
Atomic number of \(N\) is \(7\). The atomic number of 3rd member of nitrogen family is
1 \(23\)
2 \(15\)
3 \(33\)
4 \(43\)
Explanation:
(c)
\(I\) \( II\) \( III\) \(IV\) \(V\)
Element - \(N\) \(P\) \(As\) \(Sb\) \(Bi\)
Atomic No. - \(7\) \(15\) \(33\) \(51\) \(83\)
07. The p-BLOCK ELEMENTS (XII)
189321
Which of the following have least covalent \(P - H\) bond
1 \(P{H_3}\)
2 \({P_2}{H_6}\)
3 \({P_2}{H_5}\)
4 \(PH_6^ +\)
Explanation:
In \(PH _6^{+}, P - H\) bond will be ionic due to electron attracting tendency of \(P\).
07. The p-BLOCK ELEMENTS (XII)
189323
Which of the following compound is tribasic acid
1 \({H_3}P{O_2}\)
2 \({H_3}P{O_3}\)
3 \({H_3}P{O_4}\)
4 \({H_4}{P_2}{O_7}\)
Explanation:
(c) It is ionizes in three steps because three \(-OH\) group are present. $\begin{array}{*{20}{c}} {\begin{array}{*{20}{c}} O \\ {||} \end{array}} \\ {HO - P - OH} \\ | \\ {\,\,\,\,\,OH} \end{array}$
07. The p-BLOCK ELEMENTS (XII)
189326
In compounds of type \(EC{l_3}\), where \(E = B,\) \(P\), \(As\) or \(Bi\), the angles \(Cl - E - Cl\) for different \(E\) are in the order
1 \(B > P = As = Bi\)
2 \(B > P > As > Bi\)
3 \(B < P = As = Bi\)
4 \(B < P < As < Bi\)
Explanation:
(b) \(B > P > As > Bi\) As we go down the group bond angle decreases because repulsion between bonded pairs of electron decreases.
189320
Atomic number of \(N\) is \(7\). The atomic number of 3rd member of nitrogen family is
1 \(23\)
2 \(15\)
3 \(33\)
4 \(43\)
Explanation:
(c)
\(I\) \( II\) \( III\) \(IV\) \(V\)
Element - \(N\) \(P\) \(As\) \(Sb\) \(Bi\)
Atomic No. - \(7\) \(15\) \(33\) \(51\) \(83\)
07. The p-BLOCK ELEMENTS (XII)
189321
Which of the following have least covalent \(P - H\) bond
1 \(P{H_3}\)
2 \({P_2}{H_6}\)
3 \({P_2}{H_5}\)
4 \(PH_6^ +\)
Explanation:
In \(PH _6^{+}, P - H\) bond will be ionic due to electron attracting tendency of \(P\).
07. The p-BLOCK ELEMENTS (XII)
189323
Which of the following compound is tribasic acid
1 \({H_3}P{O_2}\)
2 \({H_3}P{O_3}\)
3 \({H_3}P{O_4}\)
4 \({H_4}{P_2}{O_7}\)
Explanation:
(c) It is ionizes in three steps because three \(-OH\) group are present. $\begin{array}{*{20}{c}} {\begin{array}{*{20}{c}} O \\ {||} \end{array}} \\ {HO - P - OH} \\ | \\ {\,\,\,\,\,OH} \end{array}$
07. The p-BLOCK ELEMENTS (XII)
189326
In compounds of type \(EC{l_3}\), where \(E = B,\) \(P\), \(As\) or \(Bi\), the angles \(Cl - E - Cl\) for different \(E\) are in the order
1 \(B > P = As = Bi\)
2 \(B > P > As > Bi\)
3 \(B < P = As = Bi\)
4 \(B < P < As < Bi\)
Explanation:
(b) \(B > P > As > Bi\) As we go down the group bond angle decreases because repulsion between bonded pairs of electron decreases.
189320
Atomic number of \(N\) is \(7\). The atomic number of 3rd member of nitrogen family is
1 \(23\)
2 \(15\)
3 \(33\)
4 \(43\)
Explanation:
(c)
\(I\) \( II\) \( III\) \(IV\) \(V\)
Element - \(N\) \(P\) \(As\) \(Sb\) \(Bi\)
Atomic No. - \(7\) \(15\) \(33\) \(51\) \(83\)
07. The p-BLOCK ELEMENTS (XII)
189321
Which of the following have least covalent \(P - H\) bond
1 \(P{H_3}\)
2 \({P_2}{H_6}\)
3 \({P_2}{H_5}\)
4 \(PH_6^ +\)
Explanation:
In \(PH _6^{+}, P - H\) bond will be ionic due to electron attracting tendency of \(P\).
07. The p-BLOCK ELEMENTS (XII)
189323
Which of the following compound is tribasic acid
1 \({H_3}P{O_2}\)
2 \({H_3}P{O_3}\)
3 \({H_3}P{O_4}\)
4 \({H_4}{P_2}{O_7}\)
Explanation:
(c) It is ionizes in three steps because three \(-OH\) group are present. $\begin{array}{*{20}{c}} {\begin{array}{*{20}{c}} O \\ {||} \end{array}} \\ {HO - P - OH} \\ | \\ {\,\,\,\,\,OH} \end{array}$
07. The p-BLOCK ELEMENTS (XII)
189326
In compounds of type \(EC{l_3}\), where \(E = B,\) \(P\), \(As\) or \(Bi\), the angles \(Cl - E - Cl\) for different \(E\) are in the order
1 \(B > P = As = Bi\)
2 \(B > P > As > Bi\)
3 \(B < P = As = Bi\)
4 \(B < P < As < Bi\)
Explanation:
(b) \(B > P > As > Bi\) As we go down the group bond angle decreases because repulsion between bonded pairs of electron decreases.