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Practice Test - Chemistry 20
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Question 1
Which of the following sets of quantum numbers is correct for an electron in 4f orbital?
Question 2
Which one of the following compounds has the smallest bond angle in its molecule?
Question 3
At what T both
and 
are equal?Question 4
The enthalpy changes for the following processes are listed below:
Cl2(g) →2Cl (g), 242.3 kJ mol–1
I2(g) →2 I(g), 151.0 kJ mol–1
ICl (g) → I(g) + Cl(g), 211.3 kJ mol–1
I2(s)→ I2(g), 62.76 kJ mol–1
Given that the standard states for iodine and chlorine are I2(s) and Cl2(g), the standard enthalpy of formation for ICl (g) is
Cl2(g) →2Cl (g), 242.3 kJ mol–1
I2(g) →2 I(g), 151.0 kJ mol–1
ICl (g) → I(g) + Cl(g), 211.3 kJ mol–1
I2(s)→ I2(g), 62.76 kJ mol–1
Given that the standard states for iodine and chlorine are I2(s) and Cl2(g), the standard enthalpy of formation for ICl (g) is
Question 5
The octahedral complex of a metal ion M3+ with four monodentate ligands L1, L2, L3 and L4 absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four ligands is:
Question 6
In curing cement plasters water is sprinkled from time to time. This helps in
Question 7
In context of the lanthanoids, which of the following statements is not correct?
Question 8
The solubility in water of a sparingly soluble salt AB2 is 
mol L–1. Its solubility product number will be
mol L–1. Its solubility product number will beQuestion 9
Reaction of one molecule of HBr with one molecule of 1,3-butadiene at 40 °C gives predominantly
Question 10
In this sequence of reactions A, B, C and D are:
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