Subtopic: Octate, Isoelectronic Species, Lewis Structure & Formal Charge |
79%
Level 2: 60%+
AIPMT - 2013
Hints
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
Hints
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
Hints
Links
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
Hints
Besides paddy fields, cyanobacteria are also found inside vegetative part of:
| 1. | Cycas | 2. | Equisetum |
| 3. | Psilotum | 4. | Pinus |
Subtopic: Gymnosperms: I | Gymnosperms |
78%
Level 2: 60%+
AIPMT - 2013
Hints
Which of the following statements is correct in relation to the endocrine system?
| 1. | Organs in the body like the gastrointestinal tract, heart, kidney and liver do not produce any hormones. |
| 2. | Non-nutrient chemicals produced by the body in trace amounts that act as intercellular messengers are known as hormones. |
| 3. | Releasing and inhibitory hormones are produced by the pituitary gland. |
| 4. | Adenohypophysis is under direct neural regulation of the hypothalamus. |
Subtopic: Intro to Hormones & Endocrine Glands: I | Intro to Hormones & Endocrine Glands |
85%
Level 1: 80%+
AIPMT - 2013
Hints
Subtopic: Pistil: Ovule |
70%
Level 2: 60%+
AIPMT - 2013
Hints
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