Why sodium metal is used in photoelectric effect?
This is because the valence electron are loosely bound to the nucleus of atom and are easily liberated by absorbing small amount of energy. Was this answer helpful?
What must be the main features of a metal used for photoelectric emission?
Metal which are very sensitive to light are very essential to photoelectric emission. This involves the making a device based on photoelectric effect. The metal emits the photoelectrons when radiation of known frequency falls on metal. The metal used includes caesium, potassium.
Is AG a better reducing agent than Cu?
The fact that the following reaction occurs, for example, suggests that copper metal is a stronger reducing agent than silver metal and that the Ag+ ion is a stronger oxidizing agent than the Cu2+ ion. Furthermore, by convention, the strongest reducing agents are usually found at the top of the table.
Which is reducing sugar?
The common dietary monosaccharides galactose, glucose and fructose are all reducing sugars. Reducing disaccharides like lactose and maltose have only one of their two anomeric carbons involved in the glycosidic bond, while the other is free and can convert to an open-chain form with an aldehyde group.
Why Lactose is called a reducing sugar?
Because the aglycone is a hemiacetal, lactose undergoes mutarotation. For the same reason lactose is a reducing sugar. The free aldehyde formed by ring opening can react with Benedict’s solution. Thus, a solution of lactose contains both the α and β anomer at the “reducing end” of the disaccharide.
Why is glucose a reducing sugar?
Glucose is a reducing sugar because it belongs to the category of an aldose meaning its open-chain form contains an aldehyde group. Generally, an aldehyde is quite easily oxidized to carboxylic acids. Thus, the presence of a free carbonyl group (aldehyde group) makes glucose a reducing sugar.