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📚NCERT Questions — CBSE12

275 solved questions with detailed explanations

Exams

All ExamsCBSE11(591)CBSE10(499)CBSE12(275)NCERT11(210)NCERT10(100)
71

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

CBSE12
72

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

CBSE12
73

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

CBSE12
74

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

CBSE12
75

What is the common name for the simplest dimethyl ketone?

CBSE12
76

The reaction of phenoxide ion with carbon dioxide, a weak electrophile, to form salicylic acid is known as:

CBSE12
77

What are the two main types of nucleic acids?

CBSE12
78

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

CBSE12
79

What is the primary reason for the higher boiling points of alcohols compared to hydrocarbons of comparable molecular masses?

CBSE12
80

When ethanol is dehydrated in the presence of sulphuric acid at 413 K, what is the main product?

CBSE12
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