Tag: adsorption and colloids

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Questions Related to adsorption and colloids

Multiple choice chemistry adsorption and colloids applications of colloids colloids around us the colloidal state

Colloidal sols are more effective for medical purposes because:

  1. they have smaller surface area

  2. they have larger surface area

  3. their assimilation is difficult

  4. they can be easily prepared
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Colloidal sols have larger surface area which provides larger sites for reactions.So,they are more effective for medical purposes.

Multiple choice chemistry adsorption and colloids applications of colloids colloids around us the colloidal state

Delta formation at the mouth of river takes place by:

  1. coagulation of negative salt ions and positive river particles

  2. coagulation of positive salt ions and negative river particles

  3. coagulation of positive salt ions and positive river particles

  4. coagulation of negative salt ions and negative river particles
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

River water contains charged colloidal particles of clay, sand and many other materials. Sea water is very big store house of a variety of electrolytes dissolved in it. As soon as river water comes in contact with sea water coagulate the suspended colloidal particles which ultimately settle down at the point of contact. Thus the level of the river bed rises. As a result, water adopts a different course and delta is formed in due course of time.

Multiple choice chemistry adsorption and colloids applications of colloids colloids around us the colloidal state

The colloidal sol found effective in the treatment of eye disease is:

  1. colloidal sulphur

  2. colloidal antimony

  3. colloidal silver

  4. colloidal gold
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Colloidal silver has also been said to help prevent eye infections in infants when colloidal silver eye drops are used. It is also used for medical purposes including as disinfectants and microbiocides. Silver has also been added to bandages and dressings, and to the coating of medical instruments.

Multiple choice chemistry adsorption and colloids applications of colloids colloids around us the colloidal state

The colloidal solution of $X$ in gelatin is applied in glass plates to form sensitive plates in photography. Identify $X$:

  1. Silver chloride

  2. Silver bromide

  3. Sodium chloride

  4. Sodium bromide
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

$AgBr$ (Silver bromide) is used in photography. The colloidal solution of it in gelatin is applied in glass plates to form sensitive plates.

Multiple choice chemistry adsorption and colloids applications of colloids colloids around us the colloidal state

What is the use of colloidal copper ?

  1. In treatment of cancer

  2. In treatment of syphilis

  3. Diagnostic agent for paresis

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Colloidal metal supplements are used to treat deficiencies of metals in the body and boost its immune system. Colloidal copper is actually small flecks of copper mixed with purified water. The water acts as a vehicle for delivering the metal to the digestive system.
Copper acts as an excellent anti-oxidant which helps prevents and treats diseases like.- diabetes and some cases claims, also prevents cancer., Proper Growth and Health, Copper is vital for good health and normal growth. It helps in the protection of skeletal, nervous and cardiovascular systems.

Multiple choice chemistry adsorption and colloids applications of colloids colloids around us the colloidal state

Which of the following is absorbed efficiently in colloidal forms?

  1. Colloidal sulphur

  2. Colloidal gold

  3. Colloidal copper

  4. Colloidal mercury
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Colloidal sulfur is a suspension of fine sulfur particles, usually in a gum base. A good way to think about this is if one were to grind up pure sulfur and dust it into a gelatin mix before it firmed up. Colloidal sulfur is a homoeopathic 'natural' remedy used to treat skin conditions such as acne, psoriasis, eczema, and dermatitis. Colloidal sulfur can be taken orally or mixed with other ingredients and used as soap or shampoo.

Sulfur is lighter weight element and can serve as a powerful antioxidant, removing free radicals of oxygen and fluorine. Overall, colloidal sulfur is a safe substance that has been used throughout human history as a treatment for skin conditions and can be used today as an effective diet supplement.