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Q. No.Which of the following contains ionic, covalent, and coordinate bonds?
1. \(NaCN \)
2. \(PH_4Cl \)
3. \(CH_3COONa \)
4. \(N_3H \)
Subtopic: Types of Chemical Bond |
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Which set among the following represents the correct order of dipole moments?
| 1. |  |
| 2. | NH3 < NF3 |
| 3. | Trans-1-fluoro propene < Cis -1-fluoro propene |
| 4. | SbH3 < PH3 |
Subtopic: Polarity |
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Assertion(A): SF4 has two significant lp-bp repulsions.
Reason(R): Its shape is a see-saw.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true and R is false.
4. A and R both are false.
Reason(R): Its shape is a see-saw.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true and R is false.
4. A and R both are false.
Subtopic: V.S.E.P.R & V.B.T |
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Subtopic: M.O.T |
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Subtopic: Resonance & Nature of Compounds |
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Given below are two statements:
| Assertion (A): | PCl3Br2 has zero dipole moment. |
| Reason (R): | Br atoms occupy axial position while Cl atoms occupy equatorial position. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Polarity |
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| Assertion (A): | Generally, the lowest energy structure of a molecule is the one with the smallest formal charges on the atoms. |
| Reason (R): | Formal charge helps in the selection of the lowest energy structure. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
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Which among the following concepts is not introduced by the Valence Bond theory?
| 1. | Partial ionic character of a covalent bond. |
| 2. | The number of lone pairs and bond pairs of electrons decide the shape of the molecules. |
| 3. | Delocalisation of electrons over two nuclei. |
| 4. | Shielding effect of electrons. |
Subtopic: V.S.E.P.R & V.B.T |
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Formal charges of central atom in SO3 , \(NO^-_3\) and \(NH^+_4\) are, respectively:
1. 0 , +1 , +1
2. +2 , +1 , +1
3. +2 , -1 , +1
4. 0, -1 , +1
Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
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Assertion: Dipole moment of cis-1-chloropropene is more than trans-1-chloropropene
Reason: In the case of cis-1-chloropropene, dipoles are additive while in the case of trans-1-chloropropene dipoles are subtractive.
1. Both assertion and reason are true, and the reason is the correct explanation of the assertion
2. Both assertion and reason are true, but the reason is not the correct explanation of the assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Subtopic: Polarity |
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