General organic chemistry Questions and Answers

What is the correct formula with physical state for magnesium under standard conditions Mg s Mg 1 Mg g Mg2 1 Mg2 g B

How many neutrons are in the following 200 80Hg O 120 O 200 80 O 76 27

Which of the following are elements ON Au NaOH O C6H6

What is the correct formula with physical state for nitrogen under standard conditions ON2 g ON2 1 ON g ON s ON4 g 2

1 An alkane with eight carbon atoms in a linear configuration is called a a hexane b heptane c octane 2 What is the common name of the following substituent CH CH C CH d pentane

Two atoms with the following symbols are 24 12X 24 the same element and isotope ions 14 X O the same element isotopes different elements

Rubidium is found naturally in only two isotopic forms 72 172 of natural rubidium is 85Rb and 27 828 is 87Rb The mass of 85Rb is 84 91179 amu and 87Rb is 86 90918 amu From this information calculate the atomic mass of rubidium

How many neutrons are in the following 50Sn4 119 O 119 O 50 O 69 46

How many protons does the following element have What is the atomic number for the following element N O 7 protons atomic number 7 14 protons atomic number 14 O 7 protons atomic number 14 O 14 protons atomic number 7

For the following reaction identify the acid base conjugate acid and conjugate base CH3CH Li I HH II 1 base II acid III conjugate base IV conjugate acid 1 acid II base III conjugate base IV conjugate acid 1 base II acid III conjugate acid IV conjugate base 1 acid II base III conjugate acid IV conjugate base 1 base II base III conjugate acid IV conjugate acid III CH3CH3 IV Li

How many possible sublevels subshells are in n 4 32 O 2 4

Which of the following are transition elements Mercury Aluminum Chromium Lead

The electron configuration of carbon is 1s 2s 2p O 1s 2s 2p3 O 2p6 2s 2p6

How many electrons are in the following 127 531 52 53 54 74 2

Which element has the electron configuration 1s22s22p63s O Li Na O Mg AL 4

Which of the following are heterogeneous mixtures A mixture of AgCl s and H O 0 Cereal and milk NaCl aq A solution of hydrochloric acid in water

Question 31 How many valence electrons does boron B have

Question 22 Which of the following subshells is greatest in energy 4s 4p 4d

Which of the following are main group elements Copper Phosphorus Strontium Potassium

What is the symbol of the element X below 3416X2 OS 4

Identify the expected product for the following reaction BF3 B F 1 BF3 IV BF3

14 72 Write the IUPAC name for each of the following 14 6 a b O CH CH CH CH C NH O CH3 CH3 CH C N CH3

Members of the same group have similar chemical and physical properties because O they have the same charge Othey have the same number of valence electrons Othey have the same number of protons they have the same number of neutrons 27

2 or tertiary 3 amine 14 5 14 56 There are four amide isomers with the molecular formula C3H7NO Draw their con densed structural formulas and write the IUPAC name for each 14 6

Provide the correct IUPAC name for the skeletal line bond structure shown here Stereochemistry is ignored Br J Br I 3 4 2 4 2 4 3 2 3 di tri sec iso tert cyclo X

The reaction of iodine chloride and hydrogen gas occurs in two elementary reaction steps as indicated below What is the best representation of the overall reaction step 1 ICI H HCI HI slow step 2 HI ICI HCI 12 fast a 21CI H 2HCI 12 Ob HI 21CI H 2HCI HI 1 c ICH H HCI HI d H HI HI 12 e HI ICI HCI 1

Which is the most stable carbocation O O CH CH

Which molecule undergoes E1 fastest in concentrated H SO4 HO OH O HO OH

3 2769 12 00 Which definition best describes polygenic traits OA traits that are carried on linked genes O B traits that are controlled by multiple genes OC traits that affect several features OD traits that express both alleles of a gene pair

7 Assign the configuration of the following chi HO CI COOH NH Br H N G

O D 4000 OH O 3000 2000 KAVENUMBERI 1500 1000 5 00

What is the symbol for the following element Atomic Number Z Mass Number A Protons Neutrons Electrons Symbol 55 133 blank1 blank2 55 55 133 Cs O 13355 Cs O 13355 Cs 133 54Xe

What is the LUMO in the molecular orbital diagram for 1 3 cyclohexadier

What is the major product of this reaction Br 1 equiv HBr 40 C

O O 140 CH3 CH 2 CH3 CH3 CH3 120 100 80 PPM 60 20

4 NaNO2 HCI 5 CuCN O 1 HNO3 H SO4 2 Br2 AlBr3 3 Fe HCI 4 NaNO2 HCI 5 CuCN O 1 Br2 AlBr3 2 HNO3 H SO4 3 Fe HCI 4 NaNO HCI 5 CuCN 1 NaNH2 NH3 2 NaNO2 HCI 3 CuCN 4 Br AlBra

Which species is most nucleophilic in a protic solvent O BF3 O FeCl3 O PPh3

Which set of starting materials will result in this product THF OFY PPh3 MgBr

Which structure best corresponds to the IR spectrum shown LOD TRANSMITTANCE121 50 D 4000 O 3000 2000 NAVENUMBERI 11 1500 mr 1000 m 500

The compound below is classified as a n i H C CH Ketone Alkene Aldehyde Carboxylic Acid

Which type of orbital overlap is not involved in the sigma bonding of the following molecul O sp s O sp sp3 O sp s O sp sp

Which of the following elements are alkaline earth metals Ca Ba K Na

Which reagent is suitable for the transformation shown below OH OO3 in THF followed by Zn HCI O KMnO4 HCI heat O NaBH4 in THF followed by H3O O Na2Cr O7 H SO4

How many neutrons does the following ion have 129 531

Which of the following electronic transitions in a hydrogen atom would have the highest energy A n 4 to n 1 B n 2 to n 1 C n 4 to n 2 D n 4 to n 3

According to the reaction below NH3 is NH3s H On NH a A base b Neutral G An acid d Both an acid and a base 14 aq OH aq

12 26 Write the balanced chemical equation for the complete combustion of each of the following compounds 1 propanol C H OH 1 O g CO g H O g

How many grams of nitric acid HNO3 can be prepared from the reaction of 138 g of NO with 54 0 g H O according to the equation below 3NO2 H O 2HNO3 NO OA 108 B 126 C 189 D 92

How many orbitals are in an s sublevel 0 1 02 3 4

Which of the following elements are metals Co