Question
Explain the following terms:
Tyndall effect

Answer

When a beam of light is allowed to pass through a colloidal solution, it becomes visible like a column of light. This is known as the Tyndall effect. This phenomenon takes place as particles of colloidal dimensions scatter light in all directions.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

How many lattice point are there in one unit cell of each of the following lattice?
Face-centred cubic.
Why benzoic acid is less soluble in water than acetic acid?
Name a salt used in salt bridge in galvanic cell.
Define ambidient nucleophile with an example.
Explain the term, target molecules or drug targets as used in medicinal chemistry.
Write chemical reaction to affect the following transformation: Cyclohexene to hexane-1, 6-dioic acid.
Why do nitro compounds have high boiling points in comparison with other compounds of same molecular mass?
Why is it necessary to remove CO when ammonia is obtained by Haber’s process?
Read the given passage and answer the questions number 1 to 5 that follow:
The substitution reaction of alkyl halide mainly occurs by $S_N1$ or $S_N2$ mechanism. Whatever mechanism alkyl halides follow for the substitution reaction to occur, the polarity of the carbon halogen bond is responsible for these substitution reactions. The rate of $S_N1$ reactions are governed by the stability of carbocation whereas for $S_N2$ reactions steric factor is the deciding factor. If the starting material is a chiral compound, we may end up with an inverted product or racemic mixture depending upon the type of mechanism followed by alkyl halide. Cleavage of ethers with HI is also governed by steric factor and stability of carbocation, which indicates that in organic chemistry, these two major factors help us in deciding the kind of product formed.
Predict the stereochemistry of the product formed if an optically active alkyl halide undergoes substitution reaction by $S_N2$ mechanism.
Write the products formed when KI solution is treated with acidic and basic $KMnO _4$.