CLASS: X :: Carbon and its Compounds :: Question & Answer
CLASS: X :: Carbon and its Compounds :: Question & Answer Carbon and its Compounds Class-X Question & Answer
CLASS: X :: Metals and Non-metals :: Question & Answer
CLASS: X :: Metals and Non-metals :: Question & Answer 3 Metals and Non-metals
CLASS: X :: Acids, Bases and Salts :: Question & Answer
CLASS: X Acids, Bases and Salts Question & Answer Question (1): Define the terms: Acid, alkali and salt. Answer: An acid is a compound, which releases hydronium ions (H3O+) as the only positive ions in solution. An alkali is a compound, which releases hydroxyl ions (OH-) as the only negative ions in solution. A salt is one of the...
CLASS: X :: Chemical Reactions and Equations :: Question & Answer
CLASS: X NCERT (CBSE) SCIENCE Chemical Reactions and Equations Question & Answer Question 1:Define a chemical change. Answer: A chemical change is a permanent, not easily reversible change in which the identity of the substance is altered to produce one or more new substances. Question 2:Give four examples of a chemical change. Answer:...
CLASS: IX :: Sound
CLASS: IX NCERT (CBSE) PHYSICS Sound Question 1: When a wave travels through a medium ______. 1. particles are transferred from one place to another 2. energy is transferred in a periodic manner 3. energy is transferred at a constant speed 4. none of the above statements is applicable Answer: 3 Question 2: The minimum distance between the source and the reflector, so that an echo is heard is...
CLASS: IX :: Work and Energy
CLASS: IX NCERT (CBSE) PHYSICS Work and Energy Question (1): Work done = Force x _______ 1. distance 2. acceleration 3. velocity 4. speed Ans: 1 Question (2): 1 joule = 1 _______ 1. N m2 2. 3. N m 4. N2 m2 Ans: 3 Question (3): Which form of energy does the flowing water possess? 1. gravitational energy 2. potential energy 3. electrical energy 4. kinetic energy Ans: 4 Question (4): A body of mass 2 kg is dropped...
CLASS: IX :: Gravitation
CLASS: IX NCERT (CBSE) PHYSICS Gravitation Question (1): SI unit of gravitational constant is __________. 1. N m2kg2 2. N m2kg-2 3. N m2s-2 4. N mkg-2 Ans: 2 Question (2): What is the value of gravitational constant? 1. 6.6734x10-11N m2/kg2 2. 6.6734x10-10N m2/kg2 3. 6.6734x10-11N m/kg2 4. 6.6734x10-11N m2/kg Ans: 1 Question (3): If the distance between two bodies is doubled, the force of attraction F between them will be _______ 1. 1/4 F 2....
CLASS: IX :: Force and Laws of Motion
CLASS: IX NCERT (CBSE) PHYSICS Force and Laws of Motion Multiple Choice Questions Question 1: Inertia is ________. 1. a property of matter 2. a type of force 3. the speed of an object 4. none of the above Answer: 1 Question 2: A and B are two objects with masses 100 kg and 75 kg respectively,then ________. 1. both will have the same inertia 2. B will have more inertia 3. A will have more...
CLASS: IX :: Motion
CLASS: IX NCERT (CBSE) PHYSICS Motion Question 1: 1 km/h = _____ m/s 1. 2. 3. 4. Answer: 1 Question 2: The distance (s) in metres travelled by a particle is related to time (t) in seconds by the equation of motion -S = 10t + 4t2. What is the initial velocity of the body? 1. 10 m/s 2. 6 m/s 3. 4 m/s 4. 10 m/s2 Answer: 1 Question 3: For the equation...
CLASS: IX :: Diversity in Living Organisms
CLASS: IX NCERT (CBSE) BIOLOGY Diversity in Living Organisms Question (1): The science of classification is called 1. demography 2. taxonomy 3. biology 4. none of the above Ans: 2 Question (2): Homo: generic name :: sapiens: ________. 1. species name 2. human name 3. division name 4. organism name Ans: 1 Question (3): Who is the Father of Taxonomy? 1. Carolus Linnaeus 2. Eichler 3. E.H. Haeckel 4. Robert Whittaker Ans: 1 Question (4): Radial symmetry is found in...
