Science Quiz / yr1 chemistry (episode I)

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

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