Match the Variation of Reaction Spontaneity (Sign of ΔG) given in Column I with the Signs of ΔH and ΔS given in column II.

COLUMN I	COLUMN II
	ΔH	ΔS	ΔG = ΔH – TΔS
1.	−	+	a. The reaction is both enthalpically and entropically opposed. It is nonspontaneous (endergonic) at all temperatures.
2.	−	−	b. The reaction is enthalpically opposed (endothermic) but entropically favored. It is spontaneous only at temperatures above T = ΔH/ΔS.
3.	+	+	c. The reaction is enthalpically favored but entropically opposed. It is spontaneous only at temperatures below T = ΔH/ΔS.
4.	+	−	d. The reaction is both enthalpically favored (exothermic) and entropically favored. It is spontaneous (exergonic) at all temperatures.

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#Question id: 10189

#Section C (Domain-Specific Knowledge)

A very common isotope substitution is when hydrogen is replaced by deuterium. This is known as a deuterium effect and is expressed by the ratio kH/kD (as explained above). Normal KIEs for the deuterium effect

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#Question id: 10190

#Section C (Domain-Specific Knowledge)

Arrange the protium, deuterium and tritium water in increasing order of molarity. Suppose density 1g/ml.

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#Question id: 10191

#Section C (Domain-Specific Knowledge)

Statements are given as

A. Primary kinetic isotope effects are rate changes due to isotopic substitution at a site of bond breaking in the rate determining step of a reaction.

B. Solvent shows primary kinetic isotope effect

C. Secondary kinetic isotope effects are rate changes due to isotopic substitutions at a site other than the bond breaking site in the rate determining step of the reaction.

D. Solvent shows primary kinetic isotope effect and secondary kinetic effect as well

Which of the following is correct combination of statements

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#Question id: 10257

#Section C (Domain-Specific Knowledge)

Lattice energy is inversely proportional to sum of radii of

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#Question id: 10258

#Section C (Domain-Specific Knowledge)

Arrange in the decreasing order of Lattice Energy (kj/mol)

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#Question id: 10259

#Section C (Domain-Specific Knowledge)

Which molecule has the largest dipole moment?