An organic compound contains 80 % (by wt.) carbon and the remaining percentage of hydrogen. The empirical formula of this compound is:
[Atomic wt. of C is 12, H is 1]
1. CH3
2. CH4
3. CH
4. CH2
Match List-I with List-II
| List-I | List-II | ||
| (a) | (i) | Square pyramidal | |
| (b) | (ii) | Trigonal planar | |
| (c) | (iii) | Octahedral | |
| (d) | (iv) | Trigonal bipyramidal |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (i) | (iv) | (ii) |
| 2. | (iv) | (iii) | (ii) | (i) |
| 3. | (iv) | (iii) | (i) | (ii) |
| 4. | (ii) | (iii) | (iv) | (i) |
The molecular orbital diagram shown represents which of the following? (consider the z-axis as the internuclear axis)
1. \( \sigma^{\star} 2 p_z \)
2. \( \pi 2 p_{\mathrm{x}} \)
3. \(\pi^{\star} 2 p_ \text x \)
4. \( \sigma 2 p_z\)
Identify the compound that will react with Hinsberg's reagent to give a solid which dissolves in alkali.
| 1. |  |
2. |  |
| 3. |  |
4. |  |
| Statement I: | Acid strength increases in the order given as HF < HCl < HBr < HI. |
| Statement II: | As the size of the elements F, Cl, Br, I increases down the group, the bond strength of HF, HCI, HBr, and HI decreases and so the acid strength increases. |
| 1. | Statement I is correct and Statement II is incorrect |
| 2. | Statement I is incorrect and Statement II is correct. |
| 3. | Both Statement I and Statement II are correct. |
| 4. | Both Statement I and Statement II are incorrect. |
The pKb of dimethylamine and pka of acetic acid are 3.27 and 4.77 respectively at T (K).
The correct option for the pH of dimethylammonium acetate solution is:
| 1. | 7.75 | 2. | 6.25 |
| 3. | 8.50 | 4. | 5.50 |
The molar conductance of NaCl, HCI, and CH3COONa at infinite dilution are 126.45, 426.16, and 91.0 S cm mol–1 respectively. The molar conductance of CH3COOH at infinite dilution will be:
| 1. | 698.28 S cm2 mol–1 | 2. | 540.48 S cm2 mol–1 |
| 3. | 201.28 S cm2 mol–1 | 4. | 390.71 S cm2 mol–1 |
What is the value of \(K_p\)?
1. 0.56
2. 1.25
3. 0.31
4. 0.63
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