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  Mycorrhiza - Mycorrhiza is a symbiotic association of a fungus with a root system. The fungi is extremely helpful for water and mineral absorption for the plants. Pinus seed have obligate association with mycorrhizae. They germinate only in the presence of fungus. -     Mycorrhiza is a symbiotic association of a fungus with a root system. The fungi is extremely helpful for water and mineral...
  Gibb's free energy (? G) -   - wherein Gibb's free energy enthalpy of reaction entropy temperature       degree of randomness decreases  entropy decreases and is negative.Option 1)Evapouration of waterOption 2)Expansion of a gas at constant temperatureOption 3)Sublimation of solid to gasOption 4)

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  Heroin - Commonly called smack is chemically diacetylmorphine which is a white, odourless, bitter crystalline compound. - wherein   This is obtained by acetylation of morphine, which is extracted from the latex of poppy plant Papaver somniferum Generally taken by snorting and injection, heroin is a depressant and slows down body functions.      Herion is a chemically diacetylmorphine...
  Bioreactors - Bioreactors are stirrer cylindrical tanks. The stirrer provides movement, even mixing and O2 availability throughout the bioreaction. - wherein Bioreactors can be 100 to 1000 lt for large production.       In order to produce large quantities of the enzymes , bioreactors are used wherein large volumers of culture can be processed or provides optimal conditions for achieving...
  Myasthenia gravis - Myasthenia gravis is a chronic autoimmune neuromuscular disease that causes weakness in the skeletal muscles, which are responsible for breathing and moving parts of the body, including the arms and legs. , myasthenia gravis is not inherited and occurs in people with no history of the disorder in their family. -     Tetany is the condition of involuntary muscular...
Option 4 a) Pure Nitrogen  Sodium azide  or Barium azide  b) Haber process  Making ammonia                                        c) Contact process  producing sulphuric acid  d) Deacon's process  Pruduces  gas                                              Option 1)(i)    (ii)    (iii)    (iv)Option 2)(ii)    (iv)    (i)    (iii)Option 3)(iii)    (iv)    (ii)    (i)Option 4)(iv)    (iii)    (ii)    (i)
The Solutions that show large negative deviation from Raoult's law from maximum boiling azeotrope at a specific combination. Nitric acid and water is the example of this class of azeotrope.  68% Nitric acid + 32% by mass with a boiling point of 393.5 K.    Option 1)Water + Nitric AcidOption 2)Ethanol + WaterOption 3)Acetone + Carbon disulphideOption 4)Heptane + Octane

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N2O (Nitrous oxide) CH4 (Methane) O3 (Ozone) All the above are greenhouse gases but SO2  is not greenhouse gas.  Option 1) nitrous oxide Option 2) methane Option 3) ozone Option 4) sulphur dioxide
Option 1 Structure of pent-2-en-4-yne Here there are 10  bonds  and  bonds And 3  bonds   and Option 1)10  bonds and 3  bondsOption 2)8  bonds and 5  bondsOption 3)11  bonds and 2  bondsOption 4)13  bonds and no  bonds

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This oxidation of alkene occurs at the double bond. Thus, propane & ethanol must combine to give the alkene             (Propanone)                                                                                                       Now this reacts with HCl to form B as follows:                                                                         ...
electric heater Option 1)induction furnace Option 2)magnetic braking in train Option 3)electromagnet Option 4)electric heater 

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Rainbow can seen when back is towards the Sun.Option 1)When the light rays undergo two internal  reflection in a water drop , a secondary rainbow is formed Option 2)The order of colors is reversed in the secondary rainbow Option 3)An observer can see a rainbow when his front is towards the sun Option 4)Rainbow is a combined effect of dispersion , refreaction and reflection of sunlight 
Option 2                     Negatively charged colloidal  need 2 mol of   Option 1)50 mL of 1 M  + 50 mL of 1.5 M Option 2)50 mL of 1 M  + 50 mL of 2 M Option 3)50 mL of 2 M  + 50 mL of 1.5 M Option 4)50 mL of 0.1 M  + 50 mL of 0.1 M 

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(i) PbF4 is not covalent in nature. Because Pb atom is very & F atom is very small, so according to Fajan's rule, PbF4 is not covalent. (ii) SiCl4 is not a very stable compound because of steric hindrance thus can be hydrolysed very easily (iii) GeX4 is more stable than GeX2 as in GeX4 all the orbitals are fully filled.  (iv) SnF4 is ionic in nature. Because F atom is very small & Sn atom is...

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Splitting occurs as follows for octahedral For Fe2+ (d6), electron distribution occurs as follows:  is the correct distribution. Option 2 is correct.  Option 1)Option 2)Option 3)Option 4)
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