List of top Science Questions asked in Bihar Board Class X Exam

Why is an aqueous solution of sodium carbonate alkaline ?
Describe the structure and working method of a biogas plant.
Write three information obtained from chemical equation.
What is dynamo ? What is its use ?
Which of the following is a renewable resource ?
Peptic ulcer can be caused by
Why do planets not twinkle ? Explain.
What is farsightedness ?
Which of the following is the main component of biogas ?
What was the objective of construction of Tehri Dam ?
In which of the following is tartaric acid found ?
Magnesium is a member of which group of the periodic table ?
How many periods are there in the periodic table ?
What is the new concept of waste management ?
What is the chemical name of slaked lime ?
Which of the following is not an ancient method of water harvesting?
Which of the following reactions is an example of decomposition reaction ?
Compounds formed by transfer of electrons are called
The two non-renewable sources of energy are
Which type of reaction is respiration ?
The main component of domestic gas (LPG) is
In which state is the Kalpakkam Nuclear Power Plant located ?
Which phenomenon exhibited by light is demonstrated in the twinkling of stars ?
Which of the following types of mirror is used in the headlight of a car ?
The focal length of a concave mirror is