Questions

Why Water Is Not an Element :

An element is a substance consisting of only one type of atom. Water consists of two types of atoms: hydrogen and oxygen.

water is both a molecule and a compound :

A compound forms whenever two or more atoms form chemical bonds with each other. The chemical formula for water is H2O, which means each molecule of water consists of one oxygen atom chemically bonded to two hydrogen atoms.

Thus, water is a compound.

It's also a molecule, which is any chemical species formed by two or more atoms chemically bonded to each other. The terms molecule and compound mean the same thing and can be used interchangeably.

Hence, water is both a molecule and a compound.

Van't Hoff factor (i) = Observed Colligative PropertyNormal Colligative Property

AxBy1-α→xA+yxα+yB-xyα  

Total Moles = 1-α+xα+yα = 1-αx+y-1

i=1+αx+y-11

⇒α=i-1x+y-1

In the given puzzle the logic is

2 x 1 + 1 = 2 + 1 = 3

3 x 2 + 2 = 6 + 2 = 8

4 x 3 + 3 = 12 + 3 = 15

5 x 4 + 4 = 20 + 4 = 24

6 x 5 + 5 = 30 + 5 = 35

Similarly,

7 x 6 + 6 = 42 + 6 = 48

7 = 48.

The rank of the different ministers is determined by the Prime Minister, according to whose advice the President appoints the Ministers [ Art 75(1) ] and also allocates business among them [ Art 77 ].

Cutting and Peeling of onion brings Tears to the eyes because of presence of Sulphur in the cell.