Mention the two necessary conditions for the observation of Tyndall effect.

The conditions necessary for autotrophic nutrition are sunlight, chlorophyll, carbon dioxide and water. The byproducts of autotrophic nutrition are water and oxygen.

Rhizobium is a symbiotic bacteria present in the root nodules of leguminous plants. The basic requirements for Rhizobium to carry out nitrogen fixation are as follows: (a) Presence of the enzyme nitrogenase (b)...

A compound is said to be aromatic if it satisfies the following three conditions:  (i) It should have a planar structure.  (ii) The π–electrons of the compound are completely delocalized in the...

 The molecule should contain cyclic cloud of delocalized electrons above and below the plane of the molecule.   For the delocalization of pi electrons the ring must be planer to...

(b) and (d) are colloids and will show Tyndall Effect.

(d) homogeneous and does not show Tyndall effect

Hint—Tyndall effect can be seen when light passes through a heterogeneous mixture. Example, when sunlight passes through the canopy of a dense forest.

(i) Electrophoresis: The movement of colloidal particles under the influence of an applied electric field is known as electrophoresis. Positively charged particles move to the cathode, while negatively charged particles move...

For delegation to be effective it is necessary that responsibility is accompanied with authority. Responsibility refers to the obligation to complete a task which has been assigned by the superior....

The Reclamation in Bombay wa6 necessary because: (i) When the islands of Bombay passed into British hands, the East India Company shifted its base From Surat to Bombay. Thus, Bombay became a...