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

Which of the following metals can be easily cut with a knife ?
The substances, present as impurities in on ore, are called
Which acid is found in ant sting?
The basic source of oxygen in photosynthesis is
The transfer of \(O_2\) from outside environment to cells and removal of \(CO_2\) is referred to as
Apart from plasma, which of the following is found in blood ?
An aqueous solution of an acid conducts electricity because acid in water
Xylem in plant is responsible for
The posterior part of the oral cavity is
Which of the following is known as the 'energy currency' of the cell?
Which gas is responsible for global warming?
Bile juice is secreted by
In Fleming's left-hand rule, the index finger of the left hand indicates
What type of energy source is hydroelectric energy ?
What is the function of the villi located in small intestine ?
When electric current flows through a conducting wire, what type of magnetic field is generated above and below the wire ?
A horizontal magnet hanging freely in air always comes to rest in
An electric motor converts
If a compass is placed near a wire carrying electric current, the compass needle
Faraday made many revolutionary discoveries, including
\( \text{CaCO}_3 (s) \rightarrow \text{CaO} (s) + \text{CO}_2 (g) \) is what type of reaction?
If the lower half of a concave mirror gets broken, then the image:
When a ray of light travels from air (a rarer medium) to glass (a denser medium), it bends:
Converging lens in air is:
What will be the nature of the image of an object, if magnification of the image is negative?