General Chemistry Past Paper Questions PDF

Summary

This document contains a collection of general chemistry questions covering various topics including quantum numbers, electron configuration, paramagnetic and diamagnetic elements, Aufbau principle, molecular geometries, functional groups. It appears to be a collection of practice questions rather than an actual exam paper.

Full Transcript

\- angular quantum number, the electron configuration of carbon is 1s2 2s2 2p2. What do you think is the value of the angular quantum number of carbon? \- determine the value of the spin quantum number, \- find the value of magnetic quantum number of oxygen with an atomic number of 8. \- Accordin...

\- angular quantum number, the electron configuration of carbon is 1s2 2s2 2p2. What do you think is the value of the angular quantum number of carbon? \- determine the value of the spin quantum number, \- find the value of magnetic quantum number of oxygen with an atomic number of 8. \- According to Hund's rule, before additional electrons with opposite spins can occupy the same orbitals, single electrons with the same spin must occupy each equal-energy orbital first. From the given choices, which do you think is the correct way of applying Hund's rule? ![](media/image2.png) \- Pedro was tasked to analyze which of the following is a paramagnetic element. \- *Neon (atomic number - 10)* \- Aufbau Principle; \"Aufbau,\" in German, means \"building up.\" \- you are tasked to determine which of the given is a diamagnetic element using the periodic table below. Which of the following is a diamagnetic element? \- determine an orbital diagram for the elements in the periodic table, which of the following choices should help you most in making the right orbital diagram? \- Germanium has an atomic number of 32. If your teacher asks you to make the Lewis structure of Germanium, which of the following should be the first thing that you must do? \- periodic table of elements, which of the following is most likely to form covalent bond with another atom? ![](media/image4.png) \- Which of the following violates the octet rule? \- the chemical formula of carbon tetraflouride? \- following is the correct formula for xenon hexafluoride? -. What is the molecular formula of sulfur dioxide? \- What is the correct Lewis structure for the molecule CH4? \- O3 is the chemical formula for ozone which is a layer in our atmosphere that protects us from harmful UV rays. Which of the following is the correct Lewis structure for ozone? \- Which of the following is the molecular geometry of ammonia? -REVIEW THE MOLECULAR GEOMETRY.... \- Ana was tasked to recall the differences between polar and nonpolar molecules. Which do you think is the best explanation for distinguishing polar to non- polar? \- Which of the following substances would likely be dissolved in water? - - Oil cannot be mixed in water because of their difference in polarity. Which of the following substances would likely behave like oil when mixed with water? - NH3 H2S - SO2 CCl4 \- the different functional groups, if you are given the description of a functional group having pleasant odors, and are used in the manufacture of many perfumes. Example of these are Propyl acetate that contributes to the odor of pears, while isoamyl acetate gives bananas their smell. Which functional group do you think they belong? -identifying the functional group to which acetone belongs. Structurally, the carbonyl carbon in acetone is bonded to two CH3CH3 groups. Which of the following functional groups does acetone belong to? Ethers Alcohol - you offer him bandages and look for something to disinfect his bruises. You recall your activity in school using the functional group alcohol, The type of alcohol being used will determine the product of certain reactions. Which among the types of alcohol would you recommend to be used for Jons bruises? \- you learned that there are molecules that have the same molecular formula but have a different arrangement of the atoms in space. Which do you think among the examples below best describes this scenario? \- One friend, however, wants to ensure they choose a fuel that is a structural isomer of butane. Which of the following is a structural isomer of butane (C4H10)? ![](media/image6.png) \- JOHN decided to create a bonfire as he and his friends gathered around to enjoy their time together. As he is lighting the matches, he recalled from his chemistry class that the concept behind it is that friction heats the head of the matchstick to a temperature at which the chemicals react and generate more heat than can escape into the air, and they burn with a flame. What type of reaction does it display? -Soap industries manufacture the fatty acid salts we commonly recognize as soap, which has cleansing properties due to its ability to interact with both water and oil, allowing for the removal of dirt and oils from surfaces. Which among the chemical reactions below helps this process? Acid based reactions Fermentation ANGEL is washing the dishes after her party; she intends to make use of dishwashing liquid to ensure the removal of grease and odor. Which among the dishwashing liquid additives below helps Joan to meet her goals? Perfume -Protein constitutes a vital element within each body cell, serving as a foundational component for bones, muscles, cartilage, skin, and blood. Which of the following information is responsible for specifying the three-dimensional shape of a protein? The protein's interaction with other polypeptides - You have observed that some oily foods get rancid or have an unpleasant odor when stocked for a long period. What do you think is the reason for the rancidity of lipid-rich foodstuff? - After consumption of a mixed meal, a complex cascade of events takes place that integrates fat metabolism at the whole-body level. Which of the following is correct? - Which sequence of steps correctly describes the preparation of an ester compound using the Fischer esterification method? - Which of the following organic compounds is used in the production of paints and perfumes? - Fermentation is used in the preparation of ethanol as an organic compound. Which of the following conditions must be absent for it to take place?

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