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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)
81

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

CBSE12
82

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

CBSE12
83

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?

CBSE12
84

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

CBSE12
85

A molecule that cannot be superimposed on its mirror image is called:

CBSE12
86

The reaction of methanal (HCHO) with a Grignard reagent (RMgX) followed by hydrolysis yields which type of alcohol?

CBSE12
87

Freons are chlorofluorocarbon compounds known for their role in:

CBSE12
88

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

CBSE12
89

Which pentose sugar is present in RNA molecules?

CBSE12
90

What is the general formula for diazonium salts?

CBSE12
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