CBSE Class 1 Science Free Doubts and Solutions
CBSE - X - Science - Light - Reflection and Refraction
the angle between an incident ray and a plane mirror is 50°. what is the total angle between the incident and reflected ray
CBSE - X - Science - Light - Reflection and Refraction
2md question
CBSE - X - Science - Acids, Bases and Salts
what is the role of acid in our stomach
CBSE - X - Science
Maharashtra State Board Exam Class 10 Physics (2024) The SI unit of heating is _____________ (A) Calorie (B) Joule (C) Kcal/kg ºC (D) Cal/g ºC
CBSE - X - Science - Chemical Reactions and Equations
when hydrogen gas burns in presence of oxygen then water is formed and when water is electrolysed then hydrogen and oxygen gases are produced . state which type of reaction takes place
CBSE - X - Science
What is total resistance across circuit?
CBSE - X - Science - Chemical Reactions and Equations
Red brown gas is release along with oxygen and lead oxide on heating lead nitrate it is example of which reaction
CBSE - X - Science - Electricity
An electric refrigerator rated 1 kW operates 6 hours daily. What is the cost of the energy to operate it for 15 days at rate of ₹ 3.00 per kWh?
CBSE - X - Science - Electricity
four wires of each 0f the same length diameter and material are connected to form a square,If the resistance of each wire is R.then equivalent resistance accross the opposite corner is
Browse free questions and answers Chapters
- 1 Life Processes
- 2 Control and Coordination
- 3 How Do Organisms Reproduce?
- 4 Heredity and Evolution
- 5 Environment
- 6 Management of Natural Resources
- 7 Chemical Reactions and Equations
- 8 Acids, Bases and Salts
- 9 Metals and Non Metals
- 10 Carbon and Its Compounds
- 11 Periodic Classification of Elements
- 12 Light - Reflection and Refraction
- 13 The Human Eye and The Colourful World
- 14 Electricity
- 15 Magnetic Effects of Electric Current
- 16 Sources of Energy