Science Quiz / yr1 chemistry (episode I)

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HintAnswer
shape around a c=c bond
oxidation of primary alcohol to an aldehyde yields one mole of which by-product
sharp decrease in melting point between groups _
name cr2o7(2-)
what type of alchol is pentan3ol
bond angle in a molecule with a non linear shape
max electrons in an p orbital
a double bond prevents r_____ of the carbons
no of carbon atoms in chain= 1 (stem)
rate of hydrolysis dependson the ____ of the carbon-halogen bond
how many byproducts are formed by oxidation of aldehyde to carboxylic acid
electronegativity difference in a polar covalent bond
max number of electrons in n1
two elements form a single compound with a suffix of ____
a homologous series of aliphatic hydrocarbons (/3)
a _____ denotes side chains or functional groups
simple molecular structure of sulfur
a region that can hold two electrons of opposing spin
no carbon atoms in chain= 4 (stem)
vibrations of most bonds observed in range 200-_____cm^-1
name no3-
within a subshell, the orbitals have same _____
to find the empirical formula you must first calculate the number of ____
number of lone pairs in a tetrahedral molecule
ionisation energy ______ during electron pairing in p orbitals
cause of different electron sharing between different covalently bonded chemical species (/3)
melting points are comparatively low in groups _ to _
m+1 peak caused by _______ isotope
compares mass of molecule with mass of an atom of carbon12
colour of solution containing dichromate(VI) ions
absorbing IR radiation causes bonds to s______ more
how many alkyl groups is the c-oh in a tertiary alcohol bound to
dichromate (VI) ions are reduced to ___ 3+ ions
giant structures have ___ boiling points and melting points
greenhouse gas (/3)
greater shell number, greater ___ of spherical s orbitals
name oxidising agent used in aldehyde synthesis
greater the shell number, ___ the p orbital from nucleus
number of orbitals in n4
number of orbitals in n2
bond angle in a molecule with a pyramidal shape
process of molecular ions (in mass spec) breaking down is called
electronegativity difference in an ionic bond (greater than _)
why does electronegativity increase across the periodic table (/2)
which mass spec peak is higher: M^+ or M+1 ?
how many chemical species does fragmentation produce?
electrons in same orbital have opposite ___
a dipole in a polar covalent bond is _________
All electrons that have the same value for n
number of bonded pairs in a non linear molecule
in hydrolysis which bond in a haloalkane is replaced by a C-OH bond
4s subshell empties ____ the 3d sub shell
a very electronegative atom o__
a double bond counts as how many bonded regions?
in c=c bond in an alkene how many fo each carbon's electrons are used in sigma bonds
amount a bond vibrates increases with ______
type of radiation absorbed by most bonds
number of orbitals in n3
a metallic structure contains billions of atoms held together in a g________ m_______ l______
molecular ions fragment into molecular ions and ____
exception to alcohol classification
for oxidation of alcohols, you must use a e_____ of acidified potassium dischromate (VI)
ionic compounds are ____ in polar solvents
which type of element is not present in pauling scale?
water is a ____ molecule
across a period there is ________ shielding
dipoles in water act in ______ direction(s)
as a carbon chain increases, alchols and alkanes have more _____ properties
number of bonded pairs in a pyramidal molecule
name mno4-
stereoisomers have a ______ arrangement of atoms within a space
heavier atoms vibrate _____
the number of particles in each mole of carbon-12
down a group, atomic radius _______
during combustion you need a p______ supply of oxygen to yield co2 and water
name oh-
in a solid metal structure, electrons are pooled and are d______
shape of a nitrate ion
down a group, there are more inner shells causing ______
greenhouse gas (/3)
mass spectrometer detects the m/z ratio of the ______ ______
stronger bonds vibrate ____
as no carbon chain increases in an alcohol, _____ heat is released per mol combusted
each new shell gains a new type of _____
(h2)c=c(h)(c2h5) will not have stereoisomerism because of the position of which element
cis isomer relates to E or Z stereoisomer?
simple molecular structure of nitrogen
aliphatic alkene general formula
molecular ion peak known as the:
the simplest whole number ratio of atoms of each element in a compound
shells contain atomic ____
no carbon atoms in chain= 8 (stem)
higher boiling point of alcohols compared to alkanes due to which intermolecular bonds having to be broken?
a rhythmic movement along line between atoms so distance between atomic centres increases and decreases (s____)
molecular ions formed in mass spectra by _____ an electron
number of orbitals in n1
molecular ion peak is the clear ____ at the highest m/z value
name a type of subshell (/4)
most electronegative atoms are n___ _____
The ____ denotes the number of carbon atoms in the longest continuous chain in the molecule
HintAnswer
a very electronegative atom f____
atoms are joined by covalent bonds that vibrate naturally around a c_______ p______
non metals gain electrons to form a___
a region of space with high probability of finding an electron
in mass spec, each molecule fragments differently depending on their ________
sulfur found in molecules containing multiples of _ sulfur atoms
amount of a substance that contains 6.02 x10^23 particles
name nh4+
electrons in same orbital have opposite spins to conteract the repulsion of the two ____ c_____
metals lose electrons to form c ___
number of lone pairs in a linear shaped molecule
does 3d10 come before/after 4s2 in electron config.
much of the sun's visible and IR radiation is _____ by atmospheric gases
what scale compares the electronegativity of different elements
bonded electron pair is shared unequally between bonded atoms
radiation from the sun is absorbed and re-emitted from earth's surface in l_____ w_____ form
what type of alcohol is methanol
how many hydrogens does the c-oh in a primary alcohol bind to
name a type of subshell (/4)
mass spectra used to identify m______ m_____ of an organic compound
during mass spec. some molecular ions break down into ____
positive ions form in mass spectrometer are called
in metals, the position of cations maintain shape and s_____
number of lone pairs in a trigonal planar molecule
smaller peak next to the molecular ion peak is called the ______ peak
which chemical species are not detected by a mass spectrometer (as they are uncharged)
number of lone pairs in a pyramidal molecule
melting point increases from group 1 to group _
simple molecular structure of oxygen
do you reflux or distil a primary alcohol with acidified potassium dichromate to obtain a carboxylic acid
colour of solution containing chromium(III) ions
down a group, first ionisation energy _____
name so4(2-)
volatile compounds have a ___ boiling point
C-F bond requires a______ amount of energy to break
a not very electronegative atom s____
a bond bending depends on... (/2)
simple molecular structures form from simple molecules bonding together via w____ l______ f_____
separation of opposite charges called a
a _____ denotes only functional group
no carbon atoms in chain= 5 (stem)
no carbon atoms in chain= 7 (stem)
dipoles in carbon dioxide c_____ o___
greenhouse gases absorb the longer wavelength IR radiation because it is the same frequency as the _____ ______ of their bonds
why does nitrogen have a higher ionisation energy than oxygen?
number of lone pairs in an octahedral molecule
an alcohol with the same number of carbon atoms as an alkane has a _____ melting point
cause of different electron sharing between different covalently bonded species (/3)
max number of electrons in n4
trans isomer relates to E or Z stereoisomer?
which intermolecular forces do alkanes experience
greenhouse gas (/3)
name a type of subshell (/4)
number of mol of [o] for oxidising a primary alcohol to a carboxylic acid
units used specially for natural frequency of a bond (as opposed to frequency in general which is hertz)
no carbon atoms in chain= 10 (stem)
number of mol of [O] for oxidation of one mole of primary alcohol to aldehyde
is more or less energy required to break a C-I bond than C-Cl bond
name po4(3-)
shape of a carbonate ion
atoms in molecules are in constant m_____
orbitals have different ____
down a group, nuclear attraction on outer electrons ______
absorbing IR radiation causes bonds to b_____ more
number of lone pairs in a non linear molecule
bond angle in a molecule with a tetrahedral shape
number moles = mass / ____
what type of alcohol is 2-methylpropan2-ol?
three elements form a single compound with a suffix ___
giant covalent structures (elements) (/3)
c-h is a pure _____ bond
compounds with a low volatility have a ___ boiling point
classification of an alcohol depends on number of hydrogen atoms and _____ groups attached to the carbon bonded to the OH group
combustion is e_______
no carbon atoms in chain= 3 (stem)
dipoles in carbon dioxide are equal and act in ______
shape of a sulfate ion
a bond bending depends on... (/2)
name no2-
vibrations of most bonds observed in the range ___-4000cm^-1
in a solid metal structure, cations remain fixed contain the positive nuclei and i______ e______
which type of stereoisomerism can occur in an alkane with no functional group?
pi bond is formed by the sideways overalp of two ___ orbitals
name hco3-
max number of electrons in n3
type of isomers with different arrangement of atoms in a space (with same structural formula)
number of bonded pairs in an octahedral molecule
the dipoles in water __ __ _ out
simple molecular structures have ___ boiling points and melting points
type stereoisomerism (/2)
why is methanol an exception to alcohol classification?
radiation re-emitted from greenhouse gases causes g______ w______
why does electronegativity increase across the periodic table (/2)
compares mass of formula unit with mass of an atom of carbon 12
shells are e___ ____
in a solid metal structure, cations are f______ in position
name co3(2-)
giant covalent structures (elements) (/3)
oxidising agent for carboxylic acid synthesis is a solution of potassium dichromate in dilute ______ acid
primary and secondary can be oxidised by an o________ a_______
HintAnswer
stereoisomerism occurs around a double carbon bond because rotation around the bond is r______
the attraction of a bonded atom to the pair of electrons in the covalent bond
a homologous series of aliphatic hydrocarbons (/3)
in a c=c bond each carbon contributes an electron to the pi bond from which orbital?
number of moles * molar mass =
do you distil or reflux in production of aldehydes
name so3(2-)
any particular bond can only absorb radiation that has the ____ _____ as the natural frequency of the bond
Units for number of particles in a substance
an alcohol with the same number of carbon atoms as an alkane is ____ soluble in water
across a period, nuclear charge ____
bond angle around c=c
how many alkyl groups does a primary alcohol contain (not counting c(oh)h2)
how many alkyl groups are bound to c-oh in a secondary alcohol?
falls in ionisation energy across periods exist when a new ________ starts getting filled
is rate of hydrolysis faster for fluoroalkanes or iodoalkanes
alkanes are unreactive due to their bonds being ___ ____
E/Z isomerism can occur in a smaller range of compounds than _____ isomerism
cr2o7 (2-) is reduced to cr _+
rate of hydrolysis increases as the strength of a carbon-halogen bond _______
a not very electronegative atom p____
number of bonded pairs in a tetrahedral molecule
bonds can absorb ______ radiation
bonded atoms with similar electronegativities share a ___ ___ bond
a negative charge cloud with shape of an orbital
Which is the weakest carbon-halogen bond?(i.e C-X)
bond angle in a molecule with an octahedral shape
electronegativity difference in a covalent bond
mass spectrometer detects which ratio? (hint: m/z)
carbon dioxide contains two ___ bonds
if the molecular formula is n2o4, what is the empirical formula?
natural frequency vales are very ______
avogadro constant
stereoisomers have the same s______ f_______
name a type of subshell (/4)
alkyl group suffix
cause of different electron sharing between different covalently bonded species (/3)
bond angle in a molecule with a linear shape
4s subshell fills ____ the 3d sub shell
alkenes are are u_______ hydrocarbons
no carbon atoms in chain=6 (stem)
number of bonded pairs in a trigonal planar molecule
mass spectrum of each compound is u___
reaction of oxygen and alcohol called a c________ reaction
max electrons in an s orbital
in a ___ bond the electron bond is shared equally
as the hydrocarbon chain increases in length, alcohol solubility in water ____
number of atoms of each element in a molecule
a primary alcohol
S_ (sulfur)
all electrons that share same orbital shape and same energy level are in the same
6.02x10^23
polar solvents attract charged ions in an _____ l_____
number of bonded pairs in a linear molecule
what type of alcohol is propan-2-ol
giant covalent structures (elements) (/3)
across a period the first ionisation energy ______
order of filling subshells 3p, 4s, ___
max number of electrons in n2
transition metals can form several ions with different ____
algebraic expression for no. of electrons in a shell
alcohols experience which type of intermolecular bond (due to the presence of the hydroxyl func group)
vibrating bonds of greenhouse gases eventually re-emit the radiation that increases ________ of atmosphere close to earths surface
mass spectra gives information about s_____ of the organic compound
no carbon atoms in chain= 9 (stem)
the compound the chemist is trying to prepare via organic synthesis is called the _______ molecule
a homologous series of aliphatic hydrocarbons (/3)
m/z ratio of compound represented by m/z ratio of the
an alcohol with the same number of carbon atoms as an alkane is _____ volatile
a bond bending causes a change in
what type of alcohol is 2-methylbutan-2-ol
simple molecular structure of phosphorus
is carbon dioxide is polar or non polar
across a period, nuclear attraction ____
type of stereoisomerism (/2)
iodoalkanes react faster than bromoalkanes or chloroalkanes or fluoroalkanes or all of them
a not very electronegative atom l___
name of a process to calculate molecular mass
max electrons in a d orbital
a bond stretching behaves like a simple harmonic of a s______
which type of alkenes do not obey the general formula?
giant covalent structures are held together by strong ______ bonds
bond angle in a molecule with a trigonal planar shape
across a period the similar shielding due to same ____ being occupied
requirement for molecule to have E/Z isomerism (/2)
for each carbon in a c=c bond in an alkene, how many electrons are used in a pi bond?
requirement for molecule to have E/Z isomerism (/2)
no of carbon atoms in chain=2 (stem)
which polar bond do alcohols contain? (x-y)
Which has a higher energy level: Boron or Beryllium?
which has a higher ionisation energy: oxygen or nitrogen?
a very electronegative atom n___
first aliphatic alkene in homologous series
why are c-h bonds non polar
P_ (phosphorus)
which haloalkane bond is the strongest carbon-halogen bond?(ie C-X)
pi-electron density is concentrated a______ a____ b____ the line joining the nuclei of bonding atoms
to obtain an aldehyde, heat a ____ alcohol with acidified potassium dichromate
E/Z Isomerism only occurs in compounds with a c _ c bond
3d subshell is a _____ energy level than 4s sub shell

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