Question Text
Question 1 :
Two elements $A$ and $B$ contain $13$ and $8$ protons respectively. If the number of neutrons in them happen to be $14$ and $8$ respectively; the formula unit mass for the compound between $A$ and $B$ unit would be:
Question 2 :
The number of moles of $H_{2}$ in $0.224$ L of hydrogen at STP is:<br/>
Question 4 :
One mole is equal to number of atoms as contained in:
Question 8 :
If u are given Avogadro number (N) of atoms of a gas X if half of atoms are converted into X(g) + by energy $\Delta$H. the IE of X is?
Question 9 :
The molecular mass of $(NH_2)_2CO$ is :(Given atomic mass of H = 1, O = 16, C = 12, N = 14.)<br/>
