Class 10 Science Important Questions
Chemical Reactions and Equations Important Questions
Chemical Reactions and Equations — Important Questions 1. Balance: . 2. Define a combination and a decomposition reaction with one example each. 3. What is a displacement reaction…
Acids, Bases and Salts Important Questions
Acids, Bases and Salts — Important Questions 1. Define the pH scale and state the pH of a neutral solution. 2. What is neutralisation? Give the general reaction. 3. State two uses…
Metals and Non-metals Important Questions
Metals and Non metals — Important Questions 1. List four physical properties of metals. 2. What is the reactivity series? How is it useful? 3. Explain the formation of an ionic bo…
Carbon and its Compounds Important Questions
Carbon and its Compounds — Important Questions 1. What is catenation and tetravalency of carbon? 2. Differentiate between saturated and unsaturated hydrocarbons. 3. What is a homo…
Life Processes Important Questions
Life Processes — Important Questions 1. Name the raw materials and products of photosynthesis. 2. Differentiate between aerobic and anaerobic respiration. 3. Explain double circul…
Control and Coordination Important Questions
Control and Coordination — Important Questions 1. What is a reflex action? Draw a labelled reflex arc (describe). 2. Name the parts of the human brain and a function of each. 3. N…
How do Organisms Reproduce? Important Questions
How do Organisms Reproduce? — Important Questions 1. Name four methods of asexual reproduction with an example each. 2. What is vegetative propagation? State one advantage. 3. Exp…
Heredity and Evolution Important Questions
Heredity and Evolution — Important Questions 1. State Mendel's findings using a monohybrid cross. 2. How is the sex of a child determined in humans? 3. Differentiate between homol…
Light – Reflection and Refraction Important Questions
Light – Reflection and Refraction — Important Questions 1. Write the mirror formula and the magnification formula. 2. Define the refractive index of a medium. 3. Write the lens fo…
The Human Eye and the Colourful World Important Questions
The Human Eye and the Colourful World — Important Questions 1. What is accommodation of the eye? 2. Name the defects of vision and the lens used to correct each. 3. Why is the sky…
Electricity Important Questions
Electricity — Important Questions 1. State Ohm's law and write its formula. 2. Derive the formula for resistors in series. 3. Write the formula for resistors in parallel. 4. State…
Magnetic Effects of Electric Current Important Questions
Magnetic Effects of Electric Current — Important Questions 1. State the right hand thumb rule. 2. State Fleming's left hand rule and its application. 3. What is electromagnetic in…
Our Environment Important Questions
Our Environment — Important Questions 1. Define a food chain and a trophic level. 2. State the 10% law of energy flow. 3. Differentiate between biodegradable and non biodegradable…