List of top Questions asked in CBSE CLASS XII

Four point charges \( Q \) each, are held at the four corners of a square of side \( l \). The amount of work done in bringing a charge \( Q \) from infinity to the centre of the square will be:
The focal length of a concave mirror in air is \( f \). When the mirror is immersed in a liquid of refractive index \( \frac{3}{5} \), its focal length will become:
A coil of an AC generator, having 100 turns and area 0.1 m² each, rotates at half a rotation per second in a magnetic field of 0.02 T. The maximum emf generated in the coil is:
Two statements are given below. They are Assertion (A) and Reason (R). Read both the statements carefully and choose the correct option:
Assertion (A): All manufacturing industries are associated with raw materials.
Reason (R): Resources are essential for human survival.
Which of the following statements are correct related to mining? Choose the correct option:
(i) In ancient times minerals were used to make tools and weapons.
(ii) All developed countries are extracting more minerals for their development.
(iii) The actual development of mining began with the industrial revolution.
(iv) There are many stages in the discovery of minerals.
Identify the main characteristics of quaternary activity from the following:
Arrange the following airports of Asia from west to east as per their locations and choose the correct option:
(i) Beijing
(ii) Tokyo
(iii) Aden
(iv) Mumbai
The exported items by a port is first brought from different countries. This port is known as ______.
Arrange the following oil refineries of India from south to north direction as per their locations and choose the correct option:
(i) Mumbai
(ii) Kochi
(iii) Kayali
(iv) Mangaluru
Identify the district of first phase of construction of Rajasthan canal.
Identify the main objective of Gas Authority of India Limited (GAIL) from the following:
Two statements are given below. They are Assertion (A) and Reason (R). Read both the statements carefully and choose the correct option:
Assertion (A): Water transport plays an important role in the international trade of India.
Reason (R): The east coast of India has more ports than its west coast.
Read the following facts about ‘Swachh Bharat Mission’ carefully and choose the correct option:
(i) It is a part of urban renewable mission.
(ii) It is launched by Government of India.
(iii) It is associated with improving greenery in urban areas.
(iv) It is aimed to improve quality of life in urban slums.
Identify the unit to measure sound from the following:
Choose the correctly matched pair of areas and their characteristics from the following:
“Some wastelands are rendered unfit for agriculture by human activities.” Choose the correct option related to the statement:
(i) Shifting cultivation area
(ii) Coastal plains
(iii) Degraded pastures
(iv) Bhabar areas
Choose the correct option to fill the blank:
By 2050, the world population is estimated to live in urban areas is ______.
A, B and C were partners in a firm sharing profits and losses in the ratio of 5 : 3 : 2. D was admitted as a new partner for $\dfrac{1}{5}$ share in the profits of the firm. D acquired his share entirely from A. The new profit sharing ratio between A, B, C and D will be:
Ravi, Mohan and Vinod were partners in a firm sharing profits and losses in the ratio of 2 : 2 : 1. The partnership deed provided that interest on partners’ drawings will be charged @ 12% p.a. Starting from 1st July, 2023, Mohan withdrew ₹20,000 every month for his personal use. For the year ended 31st March, 2024 interest on Mohan’s drawings will be charged for \_\_\_\_\_\_\_\_ months.
There are two statements Assertion (A) and Reason (R):
Assertion (A): Partnership is the result of an agreement between two or more persons to do business and share its profits and losses.
Reason (R): Partnership agreement should always be in written form.
Choose the correct alternative from the following:
A portion of the uncalled capital reserved by a company to be called only in the event of winding up of the company, is called:
When applications for more shares of a company are received than the number of shares offered to the public for subscription, it is known as:
Manav, Mayank and Manish were partners in a firm sharing profits and losses in the ratio of 5 : 3 : 2. On 31st March, 2024, their Balance Sheet showed a debit balance of ₹60,000 in the Profit and Loss Account. They decided that from 1st April, 2024 they will share profits in the ratio of 2 : 2 : 1. The journal entry for writing off the debit balance of Profit and Loss Account on reconstitution of the firm will be:
Murthy and Madhavan were partners in a firm sharing profits and losses in the ratio of 3 : 1. They admitted Shriniwas as a new partner in the firm. On admission of Shriniwas, there existed a balance of ₹8,00,000 in debtors account and a balance of ₹50,000 in provision for bad debts account. Debtors of ₹60,000 proved bad and hence were written off. It was decided to maintain a provision for bad debts at 10% of the debtors. The revaluation account will be debited by \_\_\_\_\_ on the reconstitution of the firm.
Manas Ltd. forfeited 600 shares of ₹10 each for the non-payment of first call of ₹2 per share. The final call of ₹3 per share was not yet called. In the journal entry for forfeiture of shares, ‘Share Forfeiture Account’ will be: