List of top Questions asked in CBSE CLASS XII

The unit of rate and rate constant are the same for a:
Pyranose ring of glucose is formed due to the reaction between:
Assertion (A): Actinoids show wide range of oxidation states.
Reason (R): Actinoids are radioactive in nature.
Assertion (A): Boiling point of (CH₃)₃N is higher than that of CH₃CH₂CH₂NH₂.
Reason (R): Hydrogen bonding is more extensive in CH₃CH₂CH₂NH₂.
Assertion (A): Hydrolysis of an ester follows first order kinetics.
Reason (R): The concentration of water does not get altered much during the reaction.
According to Werner’s theory of coordination compounds:
Which one of the following amines gives an alcohol on reaction with HNO₂?
Which of the following is the softest metal?
In the Hinsberg method for separation of primary, secondary, and tertiary amines, the reagent used is:
A solution of acetone in ethanol:
The freezing point of one molal KCl solution, assuming KCl to be completely dissociated in water, is: (\(K_f\) for water = 1.86 K kg mol\(^{-1}\))
Which of the following complex ions is not optically active?
Which of the following compounds would be hydrolyzed by aqueous KOH most easily?
Williamson synthesis of preparing unsymmetrical ether is:
Which of the following is the primary method archaeologists used to study social differences within the Harappan society?
“Gandhiji’s approach to the ‘Quit India Movement’ involved fostering a sense of national unity among Indians.” Justify the statement with suitable arguments.
“Gandhiji’s role in major political movements can be traced through various sources.” Justify the statement.
How did the Alvars and Nayanars contribute to the development of the Tamil Bhakti Movement? Explain with examples.
How did the Virashaiva tradition initiated by Basavanna contribute to the religious and social reform movements in medieval Karnataka? Explain with examples.
How did the practices and teachings of Sufi saints in medieval India promote a sense of unity? Explain with examples.
“Gandhiji’s leadership in the ‘Quit India Movement’ involved organizing mass protests and civil disobedience.” Justify the statement with suitable arguments.
How did Mirabai’s devotion contribute to the broader understanding of divine love? Explain with examples.
Examine how the Mughal Panchayats influenced social and economic policies of the village.
"The Gandhiji led efforts to promote national unity and peace are seen as his achievements after independence." Examine the statement.
"Magadha became a prominent political centre in ancient India." Explain the statement with examples.