List of top Questions asked in Bihar Board X - 2025

In which of the following is tartaric acid found ?
What is the chemical name of slaked lime ?
What was the objective of construction of Tehri Dam ?
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 main component of domestic gas (LPG) is
Which phenomenon exhibited by light is demonstrated in the twinkling of stars ?
In which state is the Kalpakkam Nuclear Power Plant located ?
Which type of reaction is respiration ?
The two non-renewable sources of energy are
The light rays travel in
Which type of mirror is a concave mirror ?
Which of the following types of mirror is used in the headlight of a car ?
The focal length of a concave mirror is
Which mirror always forms an image smaller than the object?
The speed of light in air as compared to vacuum is
IUPAC name of ethylene is
Which of the following is saturated hydrocarbon ?
Which was a defect of Mendeleev's periodic table ?
Who among the following propounded the laws of octave ?
Which of the following compounds would be the most basic ?
A group of rays is called
The valency of carbon in organic compounds is
The genetic structure of an organism is called