'मक्खीचूस' शब्द में

Milk tastes sour when kept in the open for sometimes due to the formation of-

______is the process in which acids and bases react to form salts and water

The noble gas used in radiotherapy is

Formation of ozone hole is maximum over

The fuel that is used in modern submarines is -

One of the constituents of tear gas is

The noble gas used in radiotherapy is

The acid used in lead storage cells is-

The element used for making solar cells is

The absolute value of the charge on electron was determined by-