>
questions
List of practice Questions
Draw the structures of major monohalo products in each of the following reactions:
\( \text{CH}_3\text{C}_6\text{H}_5 + \text{HI} \longrightarrow \) ?
(b) \( \text{C}_6\text{H}_6 + \text{Br}_2 \longrightarrow \) Heat or UV light ?
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Organic Chemistry
How do you explain the following?
(a) Presence of an aldehyde group in glucose.
(b) Presence of five –OH groups in glucose.
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Organic Chemistry
State Henry's law. Why are aquatic species more comfortable in cold water as compared to warm water?
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Physical Chemistry
Observe the graph in the given figure and answer the following questions:
(a) Predict the order of reaction.
(b) What is the slope of the curve?
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Chemical Kinetics
Assertion (A):
Hydrolysis of an ester follows first order kinetics.
Reason (R):
The concentration of water does not get altered much during the reaction.
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Organic Chemistry
Which of the following cell converts the energy of combustion of fuel into electrical energy?
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Electrochemistry
Pyranose ring of glucose is formed due to the reaction between:
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Organic Chemistry
Assertion (A):
Boiling point of (CH₃)₃N is higher than that of CH₃CH₂CH₂NH₂.
Reason (R):
Hydrogen bonding is more extensive in CH₃CH₂CH₂NH₂.
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Organic Chemistry
Assertion (A):
Actinoids show wide range of oxidation states.
Reason (R):
Actinoids are radioactive in nature.
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Chemical Kinetics
The unit of rate and rate constant are the same for a:
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Chemical Kinetics
In the Hinsberg method for separation of primary, secondary, and tertiary amines, the reagent used is:
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Organic Chemistry
Which one of the following amines gives an alcohol on reaction with HNO₂?
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Organic Chemistry
A solution of acetone in ethanol:
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Colligative Properties
Which of the following is the softest metal?
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Physical Properties of Metals
Which of the following complex ions is not optically active?
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Coordination chemistry
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\(^{-1}\))
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Colligative Properties
According to Werner’s theory of coordination compounds:
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Coordination chemistry
Williamson synthesis of preparing unsymmetrical ether is:
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Organic Chemistry
Which of the following compounds would be hydrolyzed by aqueous KOH most easily?
CBSE CLASS XII - 2025
CBSE CLASS XII
Chemistry
Organic Chemistry
Which of the following is the primary method archaeologists used to study social differences within the Harappan society?
CBSE CLASS XII - 2025
CBSE CLASS XII
History
The Harappan Civilisation
“Gandhiji’s approach to the ‘Quit India Movement’ involved fostering a sense of national unity among Indians.” Justify the statement with suitable arguments.
CBSE CLASS XII - 2025
CBSE CLASS XII
History
Indian Freedom Movement
“Gandhiji’s role in major political movements can be traced through various sources.” Justify the statement.
CBSE CLASS XII - 2025
CBSE CLASS XII
History
Indian Freedom Movement
How did the Virashaiva tradition initiated by Basavanna contribute to the religious and social reform movements in medieval Karnataka? Explain with examples.
CBSE CLASS XII - 2025
CBSE CLASS XII
History
Religious Histories: Bhakti-Sufi Traditions
How did the Alvars and Nayanars contribute to the development of the Tamil Bhakti Movement? Explain with examples.
CBSE CLASS XII - 2025
CBSE CLASS XII
History
Religious Histories: Bhakti-Sufi Traditions
"The Gandhiji led efforts to promote national unity and peace are seen as his achievements after independence." Examine the statement.
CBSE CLASS XII - 2025
CBSE CLASS XII
History
Indian Freedom Movement
Prev
1
...
11
12
13
14
15
...
5824
Next