×
Detail Form
We will send your result on your email id and phone no. please fill detail
1.
and 
are the atomic weight, equivalent weight, molecular weight and valence of an element. The correct relation is:
and are the atomic weight, equivalent weight, molecular weight and valence of an element. The correct relation is:
2.
Which one of the following set of units represents the smallest and largest amount of energy respectively?
3.
The number of atoms present in a 0.635 g of Cu piece will be
4.
What volume of hydrogen gas, at 273 K and 1 atm pressure will be consumed in obtaining 21.6 g of elemental boron (atomic mass = 10.8) from the reduction of boron trichloride by hydrogen?
5.
The numerical value of 
(where 
is number of molecules is 
moles of gas) is:
(where is number of molecules is moles of gas) is:
6.
In the relationship molecular formula = empirical formula 
7.
10 g 
on heating gives 5.6 g CaO and .... g 
on heating gives 5.6 g CaO and .... g
8.
Which of the following changes with increase in temperature?
9.
On combustion of 4 g of the methane, 10.46 kJ of heat is liberated. Heat of combustion of methane is
10.
A gas is found to have the formula 
. Its VD is 70. The value of 
must be:
. Its VD is 70. The value of must be: