Alum stops bleeding in minor cuts because of
The nucleus of an atom consists of-
The acid used in lead storage cells is-
The most reactive among the halogens is-
Which of the following is a physical change?
The important ore of aluminium is-
The gas usually causing explosions in coal mines is-
A polymeric substance used to make parachute is
The gas used for filling weather balloons is-
The nucleus of an atom consists of-
