Question
Five persons, N, T, E, S and H, live in a five-storey
building such that bottommost floor is numbered as 1 and the floor immediately above it is numbered as 2 and so on. N lives immediately above E. T lives two floors below N. S lives neither adjacent to N nor T. S lives immediately above H. Who lives three floors above E?Solution
The chemical name of'Common saltβ
The nucleus of an atom consists of-
One of the constituents of tear gas is
The acid used in lead storage cells is-
Which of the following is a physical change?
The pH of a neutral solution is βΒ
Manganite is an ore/mineral of
The gas usually causing explosions in coal mines is-
Milk tastes sour when kept in the open for sometimes due to the formation of-
Which one amongst the following isΒ not a Green House gas?