Which the following statements is/are true about the stacking gel?

i. The stacking gel solution contains acrylamide.

ii. It is on the top of the separating gel.

iii. It is used to dilute the protein sample before it enters the main separating gel.

iv. It is into this gel that the wells are formed and the proteins loaded.

TLS Online TPP Program

#Question id: 10191

#Unit 1. Molecules and their Interaction Relevant to Biology

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

TLS Online TPP Program

#Question id: 10257

#Unit 1. Molecules and their Interaction Relevant to Biology

Lattice energy is inversely proportional to sum of radii of

TLS Online TPP Program

#Question id: 10258

#Unit 1. Molecules and their Interaction Relevant to Biology

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

TLS Online TPP Program

#Question id: 10259

#Unit 1. Molecules and their Interaction Relevant to Biology

Which molecule has the largest dipole moment?

TLS Online TPP Program

#Question id: 10260

#Unit 1. Molecules and their Interaction Relevant to Biology

Arrange F, C, O, N in the decreasing order of electronegativity

TLS Online TPP Program

#Question id: 10261

#Unit 1. Molecules and their Interaction Relevant to Biology

What is the enthalpy change for the given reaction?

CH3CH3 + Cl2 → CH3CH2Cl + HCl

Given the enthalpies

Bonds	Bond Enthalpy (kJ mol⁻¹)
C-H	413
Cl-Cl	239
C-C	347
C-Cl	339
H-Cl	427