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Draw the zwitter ion structure for sulphanilic acid.

Appears in 5 question papers
Chapter: [10] Biomolecules
Concept: Classification of Amino Acids

Explain the term Antiseptics

Appears in 5 question papers
Chapter: [16] Chemistry in Everyday Life
Concept: Classification of Drugs

अच्छे फीचर की किन्हीं तीन विशेषताओं का उल्लेख कीजिए।

Appears in 5 question papers
Chapter: [3.2] पत्रकारीय लेखन के विभिन्न रूप और लेखन प्रक्रिया
Concept: पत्रकारीय लेखन के विभिन्न रूप और लेखन प्रक्रिया

 If A is a square matrix such that A2 = I, then find the simplified value of (A – I)3 + (A + I)3 – 7A.

Appears in 5 question papers
Chapter: [3] Matrices
Concept: Types of Matrices

if the matrix A =`[(0,a,-3),(2,0,-1),(b,1,0)]` is skew symmetric, Find the value of 'a' and 'b'

Appears in 5 question papers
Chapter: [3] Matrices
Concept: Types of Matrices

If A = `[(2,-3,5),(3,2,-4),(1,1,-2)]` find A−1. Using A−1 solve the system of equations:

2x – 3y + 5z = 11

3x + 2y – 4z = –5

x + y – 2z = –3

Appears in 5 question papers
Chapter: [4] Determinants
Concept: Applications of Determinants and Matrices

Find the area of the region in the first quadrant enclosed by the x-axis, the line y = x and the circle x2 + y2 = 32.

Appears in 5 question papers
Chapter: [8] Applications of the Integrals
Concept: Area Under Simple Curves

A black and a red dice are rolled. 

Find the conditional probability of obtaining the sum 8, given that the red die resulted in a number less than 4.

Appears in 5 question papers
Chapter: [13] Probability
Concept: Conditional Probability

Define Flexibility.

Appears in 5 question papers
Chapter: [10] Training in Sports
Concept: Flexibility and Its Importance

Write two important characteristics of equipotential surfaces.

Appears in 5 question papers
Chapter: [2] Electrostatic Potential and Capacitance
Concept: Equipotential Surfaces

Define the coefficient of self-induction.

Appears in 5 question papers
Chapter: [6] Electromagnetic Induction
Concept: Inductance >> Self Inductance

A series LCR circuit is connected across an a.c. source of variable angular frequency 'ω'. Plot a graph showing variation of current 'i' as a function of 'ω' for two resistances R1 and R2 (R1 > R2).

Answer the following questions using this graph :

(a) In which case is the resonance sharper and why?

(b) In which case in the power dissipation more and why?

Appears in 5 question papers
Chapter: [7] Alternating Current
Concept: AC Voltage Applied to a Series LCR Circuit

State two points of difference between the interference patterns obtained in Young’s double slit experiment and the diffraction pattern due to a single slit.

Appears in 5 question papers
Chapter: [10] Wave Optics
Concept: Diffraction of Light >> The Single Slit

Answer the following question.

Show that the density of the nucleus is independent of its mass number A.

Appears in 5 question papers
Chapter: [13] Nuclei
Concept: Size of the Nucleus

Write the two processes that take place in the formation of a p-n junction.

Appears in 5 question papers
Chapter: [14] Semiconductor Electronics - Materials, Devices and Simple Circuits
Concept: Diode or p-n Junction

Write the property of a junction diode which makes it suitable for rectification of ac voltages.

Appears in 5 question papers
Chapter: [14] Semiconductor Electronics - Materials, Devices and Simple Circuits
Concept: Semiconductor Diode

What is the function of a 'Repeater' used in communication system?

Appears in 5 question papers
Chapter: [15] Communication Systems
Concept: Basic Terminology Used in Electronic Communication Systems

In the midst of severe competition and many conflicts in 1989, a consensus appeared to have emerged among most parties. Explain any three points of consensus.

Appears in 5 question papers
Chapter: [2.1] Challenges of Nation-building
Concept: Political Conflicts Overlanguage

Make a list of any three outbreeding devices that flowering plants have developed and explain how they help to encourage cross-pollination.

Appears in 4 question papers
Chapter: [1] Sexual Reproduction in Flowering Plants
Concept: Pollination

Describe the structure of a seminiferous tubule.

Appears in 4 question papers
Chapter: [2] Human Reproduction
Concept: The Male Reproductive System
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CBSE Science (English Medium) इयत्ता १२ Important Questions
Important Questions for CBSE Science (English Medium) इयत्ता १२ Biology
Important Questions for CBSE Science (English Medium) इयत्ता १२ Chemistry
Important Questions for CBSE Science (English Medium) इयत्ता १२ Computer Science (C++)
Important Questions for CBSE Science (English Medium) इयत्ता १२ Computer Science (Python)
Important Questions for CBSE Science (English Medium) इयत्ता १२ English Core
Important Questions for CBSE Science (English Medium) इयत्ता १२ English Elective - NCERT
Important Questions for CBSE Science (English Medium) इयत्ता १२ Entrepreneurship
Important Questions for CBSE Science (English Medium) इयत्ता १२ Geography
Important Questions for CBSE Science (English Medium) इयत्ता १२ Hindi (Core)
Important Questions for CBSE Science (English Medium) इयत्ता १२ Hindi (Elective)
Important Questions for CBSE Science (English Medium) इयत्ता १२ History
Important Questions for CBSE Science (English Medium) इयत्ता १२ Informatics Practices
Important Questions for CBSE Science (English Medium) इयत्ता १२ Mathematics
Important Questions for CBSE Science (English Medium) इयत्ता १२ Physical Education
Important Questions for CBSE Science (English Medium) इयत्ता १२ Physics
Important Questions for CBSE Science (English Medium) इयत्ता १२ Political Science
Important Questions for CBSE Science (English Medium) इयत्ता १२ Psychology
Important Questions for CBSE Science (English Medium) इयत्ता १२ Sociology
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