0
Sugars containing the aldo or the keto group are capable of reducing copper in alkaline solutions (Fehling's solution) to produce the brick-red colouration of cuprous ions. These sugars are called reducing sugars and the reaction, although not specific for reducing sugars, has use for both qualitative and quantitative determinations.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Is copper sulphate an alkaline or acid?
alkaline
Is copper an alkinline earth metal?
No copper is not an alkaline earth metal because it is not in the group 2A.Only group 2A elements are called alkaline earth metal.
Is copper oxide a alkali?
Copper oxide is not an alkaline but it is a base
Why does protein change colour when you add copper sulphate and sodium hydroxide?
WHEN TESTED ON MILK- When milk(acid) is added with dilute Sodium Hydroxide it is mixed into an alkaline solution ,the copper sulphate is applied because the copper ions forms a purple complex with the Nitrogen from the peptide chain from the milk.The colour changes from light yellow to light purple.This proves the presence of protein in milk.
What is the colour of copper ammonia complex?
Copper ammine (not a misspelling) complexes are a very deep blue.
What is reaction of hexoses?
Hexoses, which are either aldoses or ketoses, show reducing properties. This reducing property is the basis of the test for sugar in the urine and in the blood. When reducing agent is treated with an oxidizing agent such as Cu2+ complex ion,+ a red-orange precipitate of copper(I) oxide (Cu2O) is formed. The unbalanced equation for the reaction of an aldehyde with Copper (II) complex ion can be written as follow: aldehyde + Cu2+ heat NAOH
Is copper sulphate an alkaline or acid?
alkaline
What are alkaline batteries made out of?
Copper
Is copper an alkinline earth metal?
No copper is not an alkaline earth metal because it is not in the group 2A.Only group 2A elements are called alkaline earth metal.
How does copper affect uranium?
Copper doesn't affect uranium.
Is copper oxide a alkali?
Copper oxide is not an alkaline but it is a base
Give the principles and significance of the biuret test?
The biuret reaction is based on the reduction of Cu2+ to Cu+ which then complexes with the nitrogen atoms on the peptide bonds. This reactionis carried out at high pH and gives a violet colour. It is the amide bond (common to all proteins) which is resposible for the colour.
What is the difference between alkaline and copper batteries?
THere is no difference i have answered this question i am the best
Does hail affect copper?
no affect!
What weathering conditions might affect copper?
There are a few different weathering conditions that might affect copper. Rain and snow are some conditions that would affect copper.
Why does protein change colour when you add copper sulphate and sodium hydroxide?
WHEN TESTED ON MILK- When milk(acid) is added with dilute Sodium Hydroxide it is mixed into an alkaline solution ,the copper sulphate is applied because the copper ions forms a purple complex with the Nitrogen from the peptide chain from the milk.The colour changes from light yellow to light purple.This proves the presence of protein in milk.
Which electron transport chain complex would be impaired by a deficiency of copper?
Complex IV
