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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)
171

Chlorobenzene can be converted into phenol by heating with aqueous NaOH at 623K and 300 atmospheres. What is the effect of introducing a -NO₂ group at the ortho- or para-position on the reactivity of

CBSE12
172

Which polysaccharide is known as 'animal starch' due to its storage function in animals and its highly branched structure?

CBSE12
173

An amine where all the alkyl or aryl groups attached to the nitrogen atom are the same is called a:

CBSE12
174

Which of the following reactions is used as a test for primary amines and produces foul-smelling substances?

CBSE12
175

Phenols are more acidic than alcohols primarily because:

CBSE12
176

Which two hormones are mentioned as regulating blood glucose levels?

CBSE12
177

What is the IUPAC name for o-Cresol?

CBSE12
178

What is the IUPAC name for the compound CH₃CH₂CH₂CHO?

CBSE12
179

Which of the following is NOT explicitly mentioned as a complex biomolecule that living systems are made up of in the introductory section?

CBSE12
180

Alcohols react with active metals like sodium to yield:

CBSE12
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