List of practice Questions

Two statements are given below. They are Assertion (A) and Reason (R). Read both the statements carefully and choose the correct option:
Assertion (A): There was civil war in Sri Lanka.
Reason (R): An Act was passed in 1956 to secure dominance of Sinhala community on the government.

Read the following statements regarding the creation of States on the basis of language in India and choose the correct options:
I. Formation of states on the basis of language made the country more united and stronger.
II. Formation of states on the basis of language made administration easier.
III. Formation of states on the basis of language has weakened the federal structure.
IV. Formation of states on the basis of language led to the development of Indian languages.

Belgium took some measures to solve its problem. Read the following measures and choose the correct option:
I. Formation of community government.
II. Following majoritarian policy.
III. By providing equal representation of language groups.
IV. By providing additional powers to local governments.

Read the characteristics given in the box and identify the type of coal from the option given below:

This is low grade brown coal.
The principal reserves are in Neyveli in Tamilnadu.
It is soft with high moisture content.

Which of the following is an electrical conductor at room temperature?

In an era of globalization, it is important that children are exposed to knowledge about world affairs and global social concerns. Schools today continue to sensitize and make students aware through various intra and inter-school activities. Write an article exploring the role of educational institutions in creating an informed youth. Provide examples to illustrate your points wherever necessary. You are Akshit/Akshat Bali of Class XII-B.

• Importance of being an informed youth
• Activities in school – MUN, debates, declamations, celebration of international days
• Newspaper readings and discussions
• Creates well aware, responsible and sensitive youth

Two cells of emf 10 V each, two resistors of 20 \( \Omega \) and 10 \( \Omega \), and a bulb B of 10 \( \Omega \) resistance are connected together as shown in the figure. Find the current that flows through the bulb.

Consider the following alphabet series: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z If the second half of the given alphabet series is written in reverse order, which letter will be seventh to the right of the twelfth letter from the left end?

Varsha Ltd. invited applications for issuing 2,000, 12% debentures of ₹ 100 each at a premium of ₹ 30 per debenture. Full amount was payable on application. Applications were received for 5,000 debentures. Applications for 3,000 debentures were rejected and money refunded. Debentures were allotted to the remaining applicants. Pass necessary journal entries for the above transactions in the books of Varsha Ltd.

Which of the following are correct statements?

(A) Hydrogen bond is weaker than covalent bond.
(B) CH\(_4\) has covalent bonds.
(C) Covalent compounds do not conduct electricity except diamond.
(D) Graphite is a soft solid and a good conductor of electricity.
Choose the correct answer from the options given below:

Given the equation: \[ 81 \sin^2 x + 81 \cos^2 x = 30 \] Find the value of \( x \).

Radhika Ltd. invited applications for issuing 40,000 equity shares of ₹ 100 each at a premium of ₹ 50 per share. The amount was payable as follows:
On Application and Allotment – ₹ 40 per share (including ₹ 10 premium)
On First call – ₹ 45 per share (including ₹ 5 premium)
On Second and final call – Balance
Applications for 39,000 shares were received. Allotment was made in full to all the applicants. Dinu, to whom 100 shares were allotted, failed to pay the first call money. His shares were immediately forfeited. The forfeited shares were re-issued thereafter at ₹ 70 per share fully paid up. The second and final call was not yet made. Pass necessary journal entries for the above transactions in the books of Radhika Ltd.

The following solutions were prepared by dissolving 1 g of solute in 1 L of the solution. Arrange the following solutions in decreasing order of their molarity: (A) Glucose (molar mass = 180 g mol$^{-1}$)
(B) NaOH (molar mass = 40 g mol$^{-1}$)
(C) NaCl (molar mass = 58.5 g mol$^{-1}$)
(D) KCl (molar mass = 7(4)5 g mol$^{-1}$)

Draft an invitation card on behalf of the Principal of J.B. Bhatia Public School for the launch of ‘Yoga for Life’ programme in the school. Mention a compelling highlight of the programme along with other necessary details.