List of top Science Questions

The ratio of nitrogen and hydrogen atoms in one molecule of ammonia is
An alloy of mercury and another metal is called
Which of the following is the most acidic oxide?
Which of the following mirrors has a positive focal length?
Which of the following is the focal length of a convex mirror whose radius of curvature is 32 cm?
Which of the following is a synthetic indicator?
Oiled paper is
Which substance turns red litmus paper blue in aqueous solution?
Oxidation is a reaction in which there is
The reaction, in which heat is also generated along with the formation of product, is called
Which of the following is a natural resource?
We can get iodine in adequate quantity from which of the following?
In which state is Tarapur Nuclear Power Plant located?
In which of the following forms is energy available in the oceans?
Which of the following is the primary source of energy in fossil fuels?
Which of the following is a forest-based industry?
The substances that take part in a reaction are called
‘Ahar and Pyne’ is the water harvesting system of which state?
Elements from group 13 to 18 are called
Which of the following is a pollution-free source of energy?
Which of the following is responsible for the depletion of the ozone layer?
How many bonds are found between the two atoms of a molecule of oxygen gas (O$_2$)?
Which of the following elements has the highest number of valence electrons?
Benzene reacts with nitric acid in the presence of concentrated sulphuric acid to form
Which of the following compounds can be used as fuel?