Choose the word which is nearly opposite in meaning to

The important ore of aluminium is-

The nucleus of an atom consists of-

Which one amongst the following is not a Green House gas?

Formation of ozone hole is maximum over

The most reactive among the halogens is-

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

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

Manganite is an ore/mineral of

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

The pH of a neutral solution is —