Here we are providing MCQ Questions for Class 11 Chemistry Chapter 4 Chemical Bonding and Molecular Structure. There questions are prepared by subject experts and are very useful for your exams. Practicing these questions will help you to score better marks in the exam. MCQ Questions for Class 11 Chapter 4 Chemical Bonding and Molecular … Read more
Q.1. Number of protons, neutrons and electrons in the element 89X231 is(a) 89, 89, 242 (b) 89, 142, 89(c) 89, 71, 89 (d) 89, 231, 89 Answer (b) Number of p = number of e– = 89 and neutrons 231 – 89 = 142. Q.2. Atoms with same mass number but different atomic numbers are … Read more
Q.1. The radius of curvature of the path followed by a charge particle in magnetic field is proportional to(1) Charge of the particle(2) Momentum of the particle(3) Energy of the particle(4) Magnetic field density Q.2. A square loop of side a carries a current I. A uniform magnetic field B is along the z-axis. Thisloop … Read more
Here we have given NCERT Solutions for Class 9 Science Chapter 7 Diversity in Living Organisms. Board CBSE Textbook NCERT Class Class 9 Subject Science Chapter Chapter 7 Chapter Name Diversity in Living Organisms Number of Questions Solved 23 Category NCERT Solutions NCERT Solutions for Class 9 Science Chapter 7 Diversity in Living Organisms INTEXT … Read more
1. Write the elements of group 15? Ans. The elements of group 15 are Nitrogen (N), Phosphorous (P) , Arsenic (As) , Antimony (Sb) and Bismuth (Bi). 2. Write chemical name & formulae of a) Chile saltpetre b) Indian saltpetre Ans. (a) Chile saltpetre – Sodium nitrate – (b) Indian saltpetre – Potasium nitrate – 3. … Read more
1. Can you store AgCl solution in Zinc pot? Ans. No. We can’t store AgCl solution in Zinc pot because standard electrode potential of Zinc is less than silver. 2. Define the term – standard electrode potential? Ans. When the concentration of all the species involved in a half-cell is unity, then the electrode potential is called … Read more
Download free printable assignments and worksheets of class 10 Science. Free PDF Download- Best collection of notes, important questions, sample papers and NCERT Solution for CBSE Class 10 Science. Below you will find the homework assignment for CBSE Class 10 Light- Reflection and Refraction. NUMERICALS BASED ON CONVEX AND CONCAVE MIRROR NUMERICALS BASED ON CONVEX … Read more
Download free printable assignments and worksheets of class 10 Science. Free PDF Download- Best collection of notes, important questions , sample papers and NCERT Solution for CBSE Class 10 Science. Below you will find the home work assignment for CBSE Class 10 Electricity. Click to download pdf file Click here to book an … Read more
Class 10 Science Chapter 1 Chemical Reactions & Equations Study Notes Here we are providing study notes for class 10 science chapter 1 chemical reactions and equations. Students can use these study notes for better understanding of the topics. This study notes are very helpful for exam preparation. The process in which new substances with … Read more
Q.1. Floridean starch is found in (a) Chlorophyceae(b) Rhodophyceae (c) Phaeophyceae(d) Cyanophyceae Answer (b) Reserve food in red algae (Rhodophyceae) is floridean starch. In green algae (Chlorophyceae), reserve food is starch. In brown algae Phaeophyceae, reserve food is laminarin and mannitol. In Cyanophyceae, reserve food is cyanophycean starch. Q.2. Peat moss is another name of(a) … Read more
Q.1. The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for(a) interaction with the environment and progressive evolution(b) reproduction(c) growth and movement(d) responsiveness to touch. Answer (b) There are several factors and processes which differentiate living beings with non-living beings like reproduction, respiration, growth, etc. But among … Read more
NCERT In-Text Solutions For Class 10 Science Chapter 12 Electricity CBSE Class 10 Physics Electricity In-Text Solution will help students to score good in class tests as well as in the CBSE Class 10 Board Exam. The solution provided below will also help students to clear their concepts about electricity. Before getting into the in-text … Read more
CBSE Class 10 Metals & Non-metals Unsolved MCQ Related Posts
Q.1. What do you mean by triple point ? Answer Answer: It is a particular point in the phase diagram, representing a particular pressure and temperature at which a substance can coexist in all three phases in solid, liquid and gas. Q.2. Why the triple point of water is considered as a standard fixed point … Read more
Q.1. What type of mechanical wave exists in air and inside water? Answer Answer: Longitudinal waves exist in both air and inside the water. Q.2. What is the phase difference between the wave y = a cos(wt + kx) and y = a sin (wt + kx)? Answer Answer: Phase difference is 90° Q.3. What … Read more
Very Short Answer Type Questions [1 Mark Each] 1. Which of the following conditions is not sufficient for SHM and why? (a) Acceleration α displacement (b) Restoring force α displacement Answer Answer: Condition (a) is not sufficient as the direction of acceleration is opposite to displacement and that needs to be mentioned. 2. A particle … Read more
BASIC CONCEPTS (INTRODUCTION) ELASTICITY AND PLASTICITY ELASTIC BEHAVIOUR OF SOLIDS STRESS AND STRAIN Stress Types of Stress Strain Types of Strain SOLVED EXAMPLES Illustration-01 Solution Illustration-02 Solution HOOKE’S LAW Hooke’s Law STRESS-STRAIN CURVE Stress-Strain Curve Elastic Limit Elastic Hysteresis Elastomers Substances like tissue of aorta, rubber etc. which can be stretched to cause large strains … Read more
Question 1: The mass of two bodies are doubled and the distance is halved, how will the gravitational force change? Answer Question 2: If two masses are equal and made of same material, how will the force of attraction vary with separation? Answer Question 3: What is the height at which the value of g … Read more
MCQ Questions for Class 10 Science Human Eye and Colourful World with Answers Question 1. The least distance of distinct vision for a normal eye is(a) infinity(b) 25 cm(c) 2.5 cm(d) 25 m Answer Answer: b Question 2. The defect of vision in which a person cannot see the distant objects clearly but can see … Read more
1. The distance between two parallel tangents of a circle of radius 4 cm is(a) 2 cm(b) 4 cm(c) 6 cm(d) 8 cm Answer: dExplanation: Reason: Here radius, r = 4 cmRequired distance,AB = OA + OB= r + r = 2r = 2×4 = 8 cm 2. In the given figure, if ∠RPS = … Read more
QUESTIONS If a particle is accelerating, it is either speeding up or speeding down. Do you agree with this statement? Two balls of different masses are thrown vertically upwards with the same speed. They pass through the point of projection in their downward motion with the same speed. Do you agree with this statement? Is … Read more
☞ Are you going to appear in the CBSE 12 Board Exams Next Year? ➽ There is a great role of making notes to secure good marks in 12 board examination. Do you know that how to prepare notes for class 12 board exams? If you answer is no, then read the complete article to … Read more
QUESTIONS A charged particle moving in a perpendicular uniform magnetic field penetrates a layer of lead and thereby loses half of its kinetic energy. How will the radius of curvature of its path changes. The energy of a charged particle moving in a uniform magnetic field does not change, why ? State property of material … Read more
QUESTIONS Q1. What is the work done in moving a test charge ‘q’ through a distance of 1 cm along the equatorial axis of an electric dipole? [1] Hint : on equatorial line V=0 Q2. Why in Millikan’s Oil Drop experiment, the charge measured was always found to be of some discrete value and not … Read more
Newton’s Corpuscular theory This theory was proposed by Sir Isacc Newton in 1678. According to this theory, known as corpuscular theory, light consists of stream of extremely light and tiny material particles known as corpuscles. These particles are shot out by every point of a source of light with a very high speed. When the … Read more
Perhaps you have noticed how the sound of a vehicle’s horn changes as the vehicle moves past you. The frequency of the sound you hear as the vehicle approaches you is higher than the frequency you hear as it moves away from you. This is one example of the Doppler effect. To see what … Read more
You are walking along seashore and a mild wind is blowing. Is the motion of air a wave motion? Solution: No, in wave motion there is no actual transfer of matter but transfer of energy between the points where as when wind blows air particles moves with it. The radio and TV programmes, telecast at … Read more
1. Is it always true that the molecules of a dense liquid are heavier than the molecules of a lighter liquid ? Solution: Density is defined as mass per unit volume. It tells how closely packed are the molecules inside an object. When molecules are tightly packed, we say that the object is dense; when … Read more
