5.0 g of sodium hydroxide (molar mass 40 g mol-1) is dissolved in little quantity of water and the solution is diluted upto 100 ml. What is the molarity of the resulting solution?
0.1 mol dm-3
1.0 mol dm-3
0.125 mol dm-3
1.25 dm-3
Which among the following solid is a non-polar solid?
Hydrogen chloride
Sulphur dioxide
Water
Carbon dioxide
Mathematical equation of first law of thermodynamics for isochoric process is
ΔU = qv
-ΔU = qv
q= -W
ΔU = W
Identify an extensive property amongst the following.
Viscosity
Heat capacity
Density
Surface tension
What is the amount of work done when 0.5 mole of methane, CH4(g), is subjected to combustion at 300 K? (Given, R=8.314JK-1 mol-1)
-2494 J
-4988 J
+ 4988 J
+ 2494 J
If 'n' represents total number of asymmetric carbon atoms in a compound then the possible number of optical isomers of the compound is
2n
2n
n2
2n+2
Which is the most stable allotrope of sulphur?
Octahedral sulphur
Monoclinic sulphur
Plastic sulphur
Colloidal sulphur
The compound which is not formed when a mixture of n-butyl bromide and ethyl bromide treated with sodium metal in the presence of dry ether is
butane
octane
hexane
ethane