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Q. No.An electron-deficient compound among the following is:
| 1. | (SiH3)2 | 2. | (BH3)2 |
| 3. | PH3 | 4. | (CH3)2 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn , formal charge on every oxygen atom and P-O bond order respectively are:
1. -0.75 and 1.25
2. -0.5 and 2
3. 1 and 1.5
4. -0.75 and 2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn NO3– ion, the number of bond pair and lone pair of electrons on nitrogen atom are respectively:
| 1. | 2, 2 | 2. | 3, 1 |
| 3. | 1, 3 | 4. | 4, 0 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCorrect Lewis structure of the nitrite ion, \(NO_{2}^{-}\) among the following is:
| 1. |  |
2. |  |
| 3. |  |
4. | None of the above |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe decreasing order of ionic character of the N-H, F-H, C-H, and O-H, is :
| 1. | N-H > F-H > C-H > O-H |
| 2. | F-H > N-H > C-H > O-H |
| 3. | O-H > C-H > F-H > N-H |
| 4. | F-H > O-H > N-H > C-H |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe right order of increase in the ionic character of the molecules
LiF, K2O, N2, SO2, ClF3 is :
1. N2 < SO2 < ClF3 < K2O < LiF
2. N2 > SO2 > ClF3 > K2O < LiF
3. N2 > SO2 > K2O > ClF3 > LiF
4. LiF > K2O < ClF3 > SO2 > N2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology(A) CO2
(B) H2O
(C) NH3
| 1. | A and C only | 2. | C and B only |
| 3. | A, B, and C | 4. | None of these |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \(CH_3Cl > CHCl_3 \)
2. \(CH_2Cl_2 = CCl_4 \)
3. \(NH_3 > NF_3 \)
4. \(BF_3 = CO_2 \)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following statements is true about the structure of \(\mathrm{CO^{2-}_3}\) ion?
| 1. | It can be explained by considering sp3 hybridization. |
| 2. | Out of the three C–O bonds, two are longer and one is shorter. |
| 3. | It has three Sigma and three \(\pi\)-bonds. |
| 4. | All three C–O bonds are equal in length with a bond order in between 1 and 2. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| Assertion (A): | Sigma (\(\sigma\)) bond is strong, while pi (\(\pi\)) bond is weak. |
| Reason (R): | Atoms rotate freely about pi (\(\pi\)) bond. |
| 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. |
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