For which among the following reactions, change in entropy is less than zero?
Sublimation of iodine
Dissociation of hydrogen
Formation of water
Thermal decomposition of calcium carbonate
Select a ferromagnetic material from the following.
Dioxygen
Chromium (IV) oxide
Benzene
Dihydrogen monoxide
What is the volume of water consumed during acid hydrolysis of 1.368 kg of sucrose?
(Given : molar masses of sucrose = 342, water = 18, density of water = 1g/cm3)
0.072 dm3
0.070 dm3
0.18 dm3
0.018 dm3
Molarity is defined as
the number of moles of solute dissolved in 1 dm3 of the solution
the number of moles of solute dissolved in 1 kg of solvent
the number of moles of solute dissolved in 1 dm3 of the solvent
the number of moles of solute dissolved in 100 ml of the solvent
What is the amount of work done when two moles of ideal gas is compressed from a volume of 1m3 to 10 dm3 at 300 K against a pressure of 100 kPa?
99 kJ
-99kJ
114.9 kJ
-114.9 kJ
Which of the following compounds is most acidic in nature?
4-chlorobutanoic acid
3-chlorobutanoic acid
2-chlorobutanoic acid
Butanoic acid
[Cr(NH3)6][Cr(SCN)6] and [Cr(NH3)2(SCN)4] [Cr(NH3)4(SCN)2] are the examples of what type of isomerism?
Ionisation isomerism
Linkage isomerism
Coordination isomerism
Solvate isomerism
Which among the following functional groups has been given the highest priority while assigning R-S configuration?
-C6H5
-CN
-C2H5
-CH3