The characteristics associated with adsorption are:
1. ∆G, ∆H, and ∆S are all negative.
2. ∆G and ∆H are negative, but ∆S is positive.
3. ∆G and ∆S are negative, but ∆H is positive.
4. ∆G is negative, but ∆H and ∆S are positive.
Match the compounds given in Column-I with the shape given in Column-II and mark the correct option.
| Column-I | Column-II | ||
| A. | XeF6 | 1. | Distorted octahedral |
| B. | XeO3 | 2. | Square planar |
| C. | XeOF4 | 3. | Pyramidal |
| D. | XeF4 | 4. | Square pyramidal |
| 1. | A-1, B-2, C-4, D-3 | 2. | A-4, B-3, C-1, D-2 |
| 3. | A-4, B-1, C-2, D-3 | 4. | A-1, B-3, C-4, D-2 |
The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha-carbon is:
| 1. | A carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as aldehyde-ketone equilibration. |
| 2. | A carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as carbonylation. |
| 3. | A carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as keto-enol tautomerism. |
| 4. | A carbonyl compound with a hydrogen atom on its alpha-carbon never equilibrates with its corresponding enol. |
| 1. | β -glycosidic bond | 2. | Peptide bond |
| 3. | Dative bond | 4. | α -glycosidic bond |
Match items of Column I with the items of Column II and assign the correct code.
| Column I | Column II |
| A) Cyanide process | 1) Ultra pure Ge |
| B) Froth floatation Process |
2) Dressing of ZnS |
| C) Electrolytic | 3) Extraction of Al Reduction |
| D) Zone refining | 4) Extracting of Au |
| A | B | C | D | |
| 1. | 2 | 3 | 1 | 4 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 3 | 4 | 2 | 1 |
| 4. | 4 | 2 | 3 | 1 |
2. Streptomycin
3. Chloromycetin
4. Novalgin
| 1. | Phosphinic acid is a monoprotic acid while phosphonic acid is a diprotic acid |
| 2. | Phosphinic acid is a diprotic acid while phosphonic acid is a monoprotic acid |
| 3. | Both are triprotic acids |
| 4. | Both are diprotic acids |
In which orbital is the pair of electrons located in the provided carbanion, CH3C≡C– ?
1. sp3
2. sp2
3. sp
4. 2p
| 1. | The H-O-H bond angle in H2O is larger than the H-C-H bond angle in CH4 |
| 2. | The H-C-H bond angle in CH4 is larger than the H-N-H bond angle in NH3 |
| 3. | The H-C-H bond angle in CH4, the H-N-H bond angle in NH3 and the H-0-H bond angle in H2O are all greater than 90o |
| 4. | The H-O-H bond angle in H2O is smaller than the H-N-H bond angle in NH3 |
SO2 is passed through an acidified K2Cr2O7 solution.
The correct statement among the following regarding the above experiment is:
1. The solution gets decolorized.
2. SO2 gets reduced.
3. Green coloured Cr2(SO4)3 gets formed.
4. The solution turns blue.
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