MDCAT

1. Energy required to remove an electron from gaseous neutral atom is:A. Electron affinityB. Lattice energyC. Ionization energyD. Crystal energy 2. The elements for which the value of ionization energy is low can:A. Gain electrons readilyB. Gain electrons with difficultyC. Lose electron less readilyD. Lose electron readily 1. Energy required to remove an electron from […]

1. What is the correct IUPAC name for the given alkyl halide, CH3CH2CH(C2H5) CH2CH(I)CH2CH3?A. 5-Iodo-3-ethylheptaneB. 3-Iodo-5-ethylheptaneC. 5-Ethyl-3-iodoheptaneD. 3-Ethyl-5-iodoheptane

1. Consider the chlorination of methane to methyl chloride. The attack of a chlorine free radical on methane occurs in which phase?A. Before initiationB. InitiationC. PropagationD. Termination 2. A patient with pancreatic insufficiency shows reduced activity of an enzyme that hydrolyzes the peptide bond at the carboxyl end of proteins and peptides. Which enzyme is

1.   Two elements X and Y have the following electronic configurations:X: 1s2 2s22p6 3s2 3p1Y: 1s2 2s2 2p4Which compound are these elements most likely to form?A. X2YB. X3Y2C. X2Y3D. XY3 2. Which particles are directly involved in ordinary chemical reactions?A. ProtonsB. NeutronsC. ElectronsD. Electron, protons, and neutrons 3.   In cathode-ray experiments, the same type of

1. When 4 moles of solid potassium chlorate (KClO3) are heated until it fully decomposes, how many moles of oxygen gas (O2) are produced?     2KClO3    → 2KCl + 3O2 A.  5 moleB.  2 molesC.  12 molesD.  6 moles 2. Which of the following samples contains exactly one mole of molecules? A.  4 gram of

1. Two elements X and Y have the following electronic configurations:X: 1s² 2s² 2p⁶ 3s² 3p¹Y: 1s² 2s² 2p⁴Which compound are these elements most likely to form?A. X₂YB. X₂Y₂C. X₂Y₃D. XY₃ 2.  Which set of molecules follows the correct order of bond angle from largest to smallest based on VSEPR Theory ? A. AX₂ > AX₃