Calculate the amount of water (g) produced by the combustion of 16g of methane.
36g
32g
28g
20g
The molecular weight of O2 and SO2 are 32 and 64 respectively. At 15oc and 150mm Hg pressure, 1L of O2 contains 'N' molecules. The number of molecules in 2L of So2 under the same conditions of temperature and pressure will be
N/2
N
2N
4N
Which of the following is an example of extensive property?
Viscosity
Volume
Pressure
Density
_________are those which do not have same composition throughout.
Homogeneous mixtures
Heterogeneous mixtures
Salt mixtures
Monoform
_________ is defined as the capacity to do work its unit s Joule.
Speed
Energy
Force
Area
The height of a person is 155.01 cm.What is the least count of the scale used?
1
1.0
0.01
0.001
NH3 is
Diatomic
Monoatomic
Triatomic
None of these
Hexa - atomic contains _________ atoms.
Six
Seven
Five
Four
A solution is prepared by adding 2g of a substance A to 18g of water. Calculate the mass percent of the water. Calculate the mass percent of the solute?
100%
98%
25%
10%
________mixtures are those Which have same composition throughout.
Homogeneous
Different
Water