List of top Questions asked in PGIMER

The mineral that contains both magnesium and calcium is:

Which of the following methods cannot remove the permanent hardness of water?

Based on their half life, which of the following radioisotopes is most dangerous to handle?

The gas used for artificial ripening of green fruit is:

Zone refining is used for the purification of:

The main chemical constituent responsible for the flavour of cardamom oil is:

Among the following molecules, the one with the highest percentage of ionic character is:

The gas used in the manufacture of vanaspati from vegetable oil is:

The ionic radii of N^3-, O^2-, F^- and Na⁺ follow the order:

The graphite rods used in a nuclear reactor:

The first metal used by humans was:

The hydronium ion is:

The most electropositive element among the following is:

The number of de Broglie waves that fit into the n^th Bohr orbit is:

The mass of one Avogadro number of helium atoms is:

Items amenable to detection by soft X-rays are:

A material that can be deformed permanently by heat and pressure is called a:

Mirage is due to:

A light-year is a unit of:

The light from the Sun reaches Earth in nearly:

Which of the following is not used in the field of physics?

The working principle of a washing machine is:

The speed of light is minimum in:

Stars appear to move from east to west because:

Radiocarbon (¹⁴C) is produced in the atmosphere as a result of: