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Why Molisch's test called group test?
Molisch's test is known as a group test because it can detect the presence of any carbohydrate in a sample, regardless of the specific type of carbohydrate. This test relies on detecting the presence of reducing sugars, which are a common feature of most carbohydrates, making it a broad test for the presence of carbohydrates in general.
Why iodoform is used for functional group detection test?
Iodoform is used in the iodoform test to detect the presence of a methyl ketone functional group. When Iodoform reacts with a methyl ketone in the presence of a base and acidic conditions, it forms a yellow precipitate of iodoform, which confirms the presence of the CH3CO- group.
What is the structural formula of acetophenone?
Acetophenone is acetyl benzene, acetyl group attached to benzene ring ,C6H5-COCH3
Functional groups in aspirin?
Acetylsalicylic acid, aromatic group, and the carboxylic acid
What is iodoform test do to 2 butanone?
The iodoform test is used to detect the presence of a methyl ketone. When 2-butanone is treated with iodine and sodium hydroxide, a yellow precipitate of iodoform (CHI3) forms if 2-butanone is present. This test confirms the presence of a methyl ketone functional group in the compound.
Why Molisch's test called group test?
Molisch's test is known as a group test because it can detect the presence of any carbohydrate in a sample, regardless of the specific type of carbohydrate. This test relies on detecting the presence of reducing sugars, which are a common feature of most carbohydrates, making it a broad test for the presence of carbohydrates in general.
Why iodoform is used for functional group detection test?
Iodoform is used in the iodoform test to detect the presence of a methyl ketone functional group. When Iodoform reacts with a methyl ketone in the presence of a base and acidic conditions, it forms a yellow precipitate of iodoform, which confirms the presence of the CH3CO- group.
Why no positive control is used in rh blood group test?
No positive control is used in the Rh blood group test because it tests the presence or absence of A and/or B antigens.
Why acetoacetic ester gives ferric chloride test?
Acetoacetic ester gives a positive ferric chloride test due to the presence of the beta-keto group in the molecule. The keto group reacts with ferric chloride to form a colored complex, producing a characteristic color change that indicates the presence of the keto group in the compound.
In lead acetate test what element in the amino acid is detected to be present in this test?
The lead acetate test is used to detect the presence of the sulfhydryl (thiol) group in amino acids, particularly cysteine. When lead acetate solution is added to a sample containing a sulfhydryl group, a black precipitate of lead sulfide forms, indicating a positive test for the presence of sulfhydryl groups.
What compounds should be used to prove the presence of aldehyde group in glucose molecule?
Tollens' reagent or Benedict's solution can be used to test for the presence of the aldehyde group in glucose. These reagents are able to oxidize the aldehyde group in glucose to form a colored precipitate. The appearance of a silver mirror or a red precipitate indicates the presence of the aldehyde group.
What is the structural formula of acetophenone?
Acetophenone is acetyl benzene, acetyl group attached to benzene ring ,C6H5-COCH3
Functional groups in aspirin?
Acetylsalicylic acid, aromatic group, and the carboxylic acid
How do you test for salt presence?
what is used to test for the presence of salt in water
What is NH3OAc?
NH3OAc is the chemical formula representing ammonium acetate, which is a salt composed of ammonium and acetate ions. It is commonly used in laboratory settings as a source of acetate ions and a buffering agent in various chemical reactions.
What is the function of Fehling's test?
Fehling's test is used to differentiate between aldehyde and ketones group. An aldehyde group will react with Fehling's reagent to give cuprous oxide resulting in a red precipitate. A Ketone group will not react with Fehling's reagent.
What is the positive result for sakaguchi test?
A positive result for the Sakaguchi test is the formation of a white or yellow precipitate in the presence of arginine or histidine in the test sample. This precipitate forms when ninhydrin (reagent used in the test) reacts with the guanidine group of arginine or the imidazole group of histidine.
