📚NCERT Questions — CBSE12

Which of the following reactions is suitable for preparing acetophenone (C₆H₅COCH₃) from benzene?

Pernicious anaemia, characterized by RBC deficiency, is caused by the deficiency of which vitamin?

Which of the following is NOT a stated application of DNA fingerprinting?

Which of the following is NOT a typical anion (X-) found in diazonium salts (R-N2+X-)?

Carbohydrates that yield a large number of monosaccharide units on hydrolysis are known as:

The reaction of carboxylic acids with alcohols in the presence of a mineral acid catalyst to form esters is known as:

Based on Table 10.1, a monosaccharide with 5 carbon atoms and a keto group would be classified as a:

Glucose pentaacetate does not react with hydroxylamine. What does this observation indicate about the structure of glucose?

What is the hybridization state of the nitrogen atom in amines?

What is the common name for the simplest dimethyl ketone?

What are the two main types of nucleic acids?

Oxidation of glucose with mild oxidising agent like bromine water yields gluconic acid. This reaction indicates the presence of which functional group?

Which of the following disaccharides yields an equimolar mixture of D-(+)-glucose and D-(-)-fructose upon hydrolysis?

What is the product formed when an amine reacts with an acid chloride or anhydride in an acylation reaction?

The two cyclic hemiacetal forms of glucose, α-D-glucose and β-D-glucose, differ only in the configuration of the hydroxyl group at which carbon atom?

Due to the presence of an unshared pair of electrons on the nitrogen atom, the geometry of amines is:

What type of bond links amino acids together in a protein chain?

Which pentose sugar is present in RNA molecules?

What is the general formula for diazonium salts?

What is the common name for CH3-CH-CH3 with an -NH2 group attached to the middle carbon?