List of top Questions asked in CBSE CLASS XII- 2026

Mention any one Harappan site from the present state of Haryana.
Which of the reactions is used in the conversion of a ketone into hydrocarbon?
A ray of light MN is incident normally on the face corresponding with side AB of a prism with an isosceles right-angled triangular base ABC. Trace the path of the ray as it passes through the prism when the refractive index of the prism material is \( \sqrt{2} \), and \( \sqrt{3} \).
Calculate the boiling point of a solution containing 0.61 g of benzoic acid (122 \( g mol^{-1} \)) in 5 g of \( CS_2 \) in which it dimerises to 88%. \( T_b^\circ(CS_2) = 46.2^\circ C, K_b = 2.3 K kg mol^{-1} \).
"Under the provisions stated in Section 20 and Section 21 of the Reserve Bank of India (RBI) Act, 1934, the RBI is mandated to handle the banking operations of the Government of India."
In the light of the given statement, elaborate the indicated function of the Reserve Bank of India.
Which of the following reagents are used to prepare primary amines by Hofmann bromamide degradation reaction?

The probability of hitting the target by a trained sniper is three times the probability of not hitting the target on a stormy day due to high wind speed. The sniper fired two shots on the target on a stormy day when wind speed was very high. Find the probability that 
(i) target is hit. 
(ii) at least one shot misses the target. 

For a hypothetical economy, assuming there are only two firms (X and Y) with equal values of Gross Value Added (GVA). On the basis of the following data, estimate the values of Domestic Sales by firm X:
Find : \[ \int \frac{2x+1}{\sqrt{x^2+6x}}\,dx \]
A part of a wire carrying \( 2.0 \, \text{A} \) current and bent at \( 90^\circ \) at two points is placed in a region of uniform magnetic field \( \vec{B} = -0.50 \, \hat{k} \, \text{T} \), as shown in the figure. Calculate the magnitude of the net force acting on the wire.
Monascus purpureus is a yeast used commercially in the production of which one of the following?
Arrange the following in the correct sequence of their evolution and select the correct option:
(i) Seaweed
(ii) Invertebrates
(iii) Jawless fish
How will you confirm the presence of five –OH groups in a glucose molecule, which are attached to different carbon atoms?
Name any two centres of Indian National Movement.
Which one of the following statements is True about the concept of ‘Co-operative Security’?
The idea of use and disuse of organs for evolution of organism was proposed by
Arrange the following historical events in chronological order and choose the correct option: I. Champaran Satyagraha
II. Kheda Satyagraha
III. Jallianwala Bagh Incident
IV. Rowlatt Act
Options:
Which of the following is not a stage of active listening?
Which of the following is not the stage of active listening?
Which of the following is not related to positive attitude?
There are two statements Assertion (A) and Reason (R):
Assertion (A): At the time of admission of a new partner in a partnership firm, the newly admitted partner brings an agreed amount of capital either in cash or in kind.
Reason (R): On admission, the new partner gets the right to acquire share in the assets and profits of the partnership firm.
Choose the correct option from the following:
Rohan failed an important exam. Instead of accepting that he didn't prepare well, he insists that the teacher was biased and the exam was unfair. Which defence mechanism is Rohan using?
The energy of an electron in an orbit in hydrogen atom is \( -3.4 \, \text{eV} \). Its angular momentum in the orbit will be:
Hari, Murari and Abhi were partners in a firm sharing profits and losses in the ratio of 8 : 7 : 4. Murari retired from the firm on 31st March, 2025. Hari and Abhi decided to share profits in the future in the ratio of 2 : 1. The gaining ratio of Hari and Abhi was:
From the following information obtained from the books of 'Ajanta Ltd.', calculate Cash from Operations: Net Profit for the year ended 31st March, 2025 after charging depreciation of ₹ 80,000 and after writing off goodwill ₹ 10,500 was ₹ 4,90,000. Additional Information: