- 1(current)
Q. No.The correct order of catenation is :
1. C > > Sn > Si Ge
2. Si > Sn > C > Ge
3. C > > Si > Ge Sn
4. Ge > Sn > Si > C
Subtopic: Carbon Family - Preparations, Properties & Uses |
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Level 1: 80%+
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The correct order of bond strength of
C- C, Si -Si ,Ge – Ge, Sn – Sn is:
1. C-C > Si-Si > Ge-Ge > Sn-Sn
2. C-C > Si- Si > Ge- Ge ≈ Sn - Sn
3. C- C > Si -Si < Ge – Ge < Sn – Sn
4. C- C > Si – Si > Sn – Sn > Ge - Ge
C- C, Si -Si ,Ge – Ge, Sn – Sn is:
1. C-C > Si-Si > Ge-Ge > Sn-Sn
2. C-C > Si- Si > Ge- Ge ≈ Sn - Sn
3. C- C > Si -Si < Ge – Ge < Sn – Sn
4. C- C > Si – Si > Sn – Sn > Ge - Ge
Subtopic: Carbon Family - Preparations, Properties & Uses |
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Level 3: 35%-60%
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The Correct order of stability of the +1 oxidation state for the following is:
1. \(Al^+>Ga^+>ln^+>Tl^+ \)
2. \(Tl^+>ln^+>Ga^+>Al^+ \)
3. \(Tl^+>ln^+>Al^+>Ga^+\)
4. \(Tl^+>Ga^+>ln^+>Al^+\)
1. \(Al^+>Ga^+>ln^+>Tl^+ \)
2. \(Tl^+>ln^+>Ga^+>Al^+ \)
3. \(Tl^+>ln^+>Al^+>Ga^+\)
4. \(Tl^+>Ga^+>ln^+>Al^+\)
Subtopic: Carbon Family - Preparations, Properties & Uses |
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Level 1: 80%+
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Which of the following is not a semiconductor?
1. \(\mathrm{Si}\)
2. Graphite
3. \(\mathrm{CuO}\)
4. \(\mathrm{Ge}\)
1. \(\mathrm{Si}\)
2. Graphite
3. \(\mathrm{CuO}\)
4. \(\mathrm{Ge}\)
Subtopic: Carbon Family - Preparations, Properties & Uses |
58%
Level 3: 35%-60%
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Given below are two statements:
Statement-1 : Electronegativity of group \(14\) elements decrease from \(\text{Si}\) to \(\text{Pb.}\)
Statement-2 : Group \(14\) has metals, metalloids, and non-metals.
1. Both Statements 1 and 2 are correct
2. Both Statements 1 and 2 are incorrect
3. Statement 1 is correct, and Statement 2 is incorrect
4. Statement 1 is incorrect, and Statement 2 is correct
Statement-1 : Electronegativity of group \(14\) elements decrease from \(\text{Si}\) to \(\text{Pb.}\)
Statement-2 : Group \(14\) has metals, metalloids, and non-metals.
1. Both Statements 1 and 2 are correct
2. Both Statements 1 and 2 are incorrect
3. Statement 1 is correct, and Statement 2 is incorrect
4. Statement 1 is incorrect, and Statement 2 is correct
Subtopic: Carbon Family - Preparations, Properties & Uses |
57%
Level 3: 35%-60%
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The metal that has very low melting point and its periodic position is closer to a metalloid is:
1. \(\mathrm {Al}\)
2. \(\mathrm {Ga}\)
3. \(\mathrm {Se}\)
4. \(\mathrm {In}\)
1. \(\mathrm {Al}\)
2. \(\mathrm {Ga}\)
3. \(\mathrm {Se}\)
4. \(\mathrm {In}\)
Subtopic: Carbon Family - Preparations, Properties & Uses |
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Level 2: 60%+
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The outermost electronic configuration of a group 13 element, E, is \(4s^2 , 4p^1 .\) Determine the electronic configuration of an element of the p-block from period five, placed diagonally to element E:
1. \(\mathrm{[Xe]5d^{10}6s^26p^2}\)
2. \(\mathrm{[Ar]3d^{10}4s^24p^2}\)
3. \(\mathrm{[Kr]3d^{10}4s^24p^2}\)
4. \(\mathrm{[Kr]4d^{10}5s^25p^2}\)
1. \(\mathrm{[Xe]5d^{10}6s^26p^2}\)
2. \(\mathrm{[Ar]3d^{10}4s^24p^2}\)
3. \(\mathrm{[Kr]3d^{10}4s^24p^2}\)
4. \(\mathrm{[Kr]4d^{10}5s^25p^2}\)
Subtopic: Boron Family- Preparations, Properties & Uses | Carbon Family - Preparations, Properties & Uses |
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Level 2: 60%+
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Among the elements In, Tl, Al, Pb, Sn, and Ge, what are the most stable oxidation states for the element with the highest first ionisation enthalpy and the element with the lowest first ionisation enthalpy, respectively?
| 1. | +2 and +3 | 2. | +4 and +3 |
| 3. | +4 and +1 | 4. | +1 and +4 |
Subtopic: Boron Family- Preparations, Properties & Uses | Carbon Family - Preparations, Properties & Uses |
Level 3: 35%-60%
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Identify the three salts X, Y, and Z respectively when salt (X) is soluble in water, salt (Y) is sparingly soluble in water and salt (Z) is soluble in hot water only:
1. \(AgCl, Hg_2Cl_2 , PbCl_2 \)
2. \(AlCl_3 , AgCl, PbCl_2\)
3. \(BaCl_2 , PbCl_2 , Hg_2Cl_2\)
4. \( MgCl_2 , Hg_2Cl_2 , CaCl_2 \)
1. \(AgCl, Hg_2Cl_2 , PbCl_2 \)
2. \(AlCl_3 , AgCl, PbCl_2\)
3. \(BaCl_2 , PbCl_2 , Hg_2Cl_2\)
4. \( MgCl_2 , Hg_2Cl_2 , CaCl_2 \)
Subtopic: Boron Family- Preparations, Properties & Uses | Carbon Family - Preparations, Properties & Uses |
56%
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Consider the following changes:
\(\begin{array}{cc} \mathrm{SnO}_2 \rightarrow \mathrm{SnO} & \Delta \mathrm{G}_1^0 \\ \mathrm{PbO}_2 \rightarrow \mathrm{PbO} & \Delta \mathrm{G}_2^0 \end{array}\)
Choose the correct option:
1. \( \Delta \mathrm{G}_1^0>0, \Delta \mathrm{G}_2^0>0\)
2. \( \Delta \mathrm{G}_1^0>0, \Delta \mathrm{G}_2^0<0 \)
3. \( \Delta \mathrm{G}_1^0<0, \Delta \mathrm{G}_2^0<0 \)
4. \( \Delta \mathrm{G}_1^0<0, \Delta \mathrm{G}_2^0>0 \)
\(\begin{array}{cc} \mathrm{SnO}_2 \rightarrow \mathrm{SnO} & \Delta \mathrm{G}_1^0 \\ \mathrm{PbO}_2 \rightarrow \mathrm{PbO} & \Delta \mathrm{G}_2^0 \end{array}\)
Choose the correct option:
1. \( \Delta \mathrm{G}_1^0>0, \Delta \mathrm{G}_2^0>0\)
2. \( \Delta \mathrm{G}_1^0>0, \Delta \mathrm{G}_2^0<0 \)
3. \( \Delta \mathrm{G}_1^0<0, \Delta \mathrm{G}_2^0<0 \)
4. \( \Delta \mathrm{G}_1^0<0, \Delta \mathrm{G}_2^0>0 \)
Subtopic: Carbon Family - Preparations, Properties & Uses | Properties of Glass, Pb & Sn compounds |
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Level 1: 80%+
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