Subtopic: Aliphatic Hydrocarbon -Nomenclature, Isomerism & Mechanism |
71%
Level 2: 60%+
AIPMT - 2013
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Subtopic: M.O.T |
89%
Level 1: 80%+
AIPMT - 2013
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Subtopic: Introduction & Crystal System |
59%
Level 3: 35%-60%
AIPMT - 2013
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Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
79%
Level 2: 60%+
AIPMT - 2013
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A reaction having equal energies of activation for forward and reverse reaction has:
1. ΔG = 0
2. ΔH = 0
3. ΔH = ΔG = ΔS = 0
4. ΔS = 0
Subtopic: Arrhenius Equation |
72%
Level 2: 60%+
AIPMT - 2013
Hints
Dipole-induced dipole interactions are present in which of the following pairs?
1. Cl2 and CCl4
2. HCl and He atoms
3. SiF4 and He atoms
4. H2O and Alcohol
1. Cl2 and CCl4
2. HCl and He atoms
3. SiF4 and He atoms
4. H2O and Alcohol
Subtopic: Types of Chemical Bond |
60%
Level 2: 60%+
AIPMT - 2013
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A button cell used in watches functions as following
Zn(s) + Ag2O(s) + H2O(l) \(\rightleftharpoons\) 2Ag(s) + Zn2+(aq) + 2OH–(aq)
If half-cell potentials are-
Zn(s) + Ag2O(s) + H2O(l) \(\rightleftharpoons\) 2Ag(s) + Zn2+(aq) + 2OH–(aq)
If half-cell potentials are-
| Zn2+(aq) + 2e–→ Zn(s) | Eo = – 0.76 V |
| Ag2O(s) + H2O(l) + 2e– → 2Ag(s) + 2OH–(aq) |
Eo = 0.34 V |
The cell potential will be:
| 1. | 0.42 V | 2. | 0.84 V |
| 3. | 1.34 V | 4. | 1.10 V |
Subtopic: Electrode & Electrode Potential |
87%
Level 1: 80%+
AIPMT - 2013
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Nitrobenzene on reaction with conc. HNO3 /H2SO4 at 80 – 100 ºC forms:
1. 1,3– Dinitrobenzene
2. 1,4–Dinitrobenzene
3. 1,2,4–Trinitrobenzene
4. 1,2–Dinitrobenzene
Subtopic: Urea & Nitro Compound |
56%
Level 3: 35%-60%
AIPMT - 2013
Hints
The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C.
| 1. | A - translation B - transcription C - Erwin Chargaff |
| 2. | A -transcription B - translation C - Francis Crick |
| 3. | A - translation B - extension C - Rosalind Franklin |
| 4. | A - transcription B - replication C - James Watson |
Subtopic: DNA Double Helix |
92%
Level 1: 80%+
AIPMT - 2013
Hints
Perisperm differs from endosperm in:
| 1. | having no reserve food |
| 2. | being a diploid tissue |
| 3. | its formation by fusion of secondary nucleus with several sperms |
| 4. | being a haploid tissue |
Subtopic: Seed |
64%
Level 2: 60%+
AIPMT - 2013
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