Which of the following is the chemical formula of water?
a) H2O2
b) H20
c) HO
d) CH6
Which of the following element is/are present in water molecule?
a) sodium
b) hydrogen
c) oxygen
d) both b and c
How many atom/s of hydrogen is/are present in a water molecule?
a) 6
b) 1
c) 3
d) 2
How many atom/s of oxygen is/are present in a water molecule?
a) 6
b) 1
c) 3
d) 2
Which of the following compound exists in all three states of matter?
a) sodium chloride
b) magnesium oxide
c) dihydrogen monoxide(water)
d) carbon dioxide
Which of the following is/are the characteristic/s of water?
a) colorless
b) odorless
c) tasteless
d) all of these
