WorksheetsIB Chemistry Quiz (DP1)
Total questions: 20
Worksheet time: 28mins
What is the sum of the coefficients when the equation is balanced with whole numbers?
—C8H18 (g) + —O2 (g) → —CO (g) + —H2O(l)
26.5
30
53
61
What is the maximum volume, in dm3, of CO2 (g) produced when 1.00 g of CaCO3 (s) reacts with
20.0cm3 of 2.00mol dm-3 HCl(aq)?
CaCO3 (s) + 2HCl (aq) → CaCl2 (aq) + H2O (l) + CO2 (g)
Molar volume of gas = 22.7 dm3 mol-1;
Mr (CaCO3) = 100.00
Which factors affect the molar volume of an ideal gas?
I. Pressure
II. Temperature
III. Empirical formula
I and II only
I and III only
II and III only
I, II and III
Which electron transition emits radiation of the longest wavelength?
A
B
C
D
X, Y and Z represent the successive elements, Ne, Na and Mg, but not necessarily in that order.
What is the order of increasing atomic number?
X<Y<Z
X<Z<Y
Y<Z<X
Y<X<Z
Which property increases down Group 1, the alkali metals?
Atomic radius
Electronegativity
First ionization energy
Melting point
Which element is a lanthanide?
Hf
Tb
U
Y
HL Only - sorry SL Ammonia is a stronger ligand than water. Which is correct when concentrated aqueous ammonia solution is added to dilute aqueous copper(II) sulfate solution?
The d-orbitals in the copper ion split.
There is a smaller splitting of the d-orbitals.
Ammonia replaces water as a ligand.
The colour of the solution fades.
How many bonding electrons are there in the urea molecule?
8
16
20
24
Which does not show resonance?
PO43-
C6H6
C6H12
O3
Which metal has the strongest metallic bond?
Li
Na
K
Rb
HL Only - sorry SL Which statement is correct?
Sigma bonds are formed only by the combination of s atomic orbitals.
Pi bonds can be formed in the absence of sigma bonds.
Pi bonds are formed parallel to the axis between atoms.
Pi bonds are formed only by the combination of hybrid orbitals.
Tough Q!
What can be deduced from the facts that ozone absorbs UV radiation in the region of 340 nm and molecular oxygen in the region of 242 nm?
The bond between atoms in molecular oxygen is a double bond.
The bonds in ozone are delocalized.
The bonds between atoms in ozone are stronger than those in molecular oxygen.
The bonds between atoms in molecular oxygen need more energy to break.
Which of the following does not react with dilute HCl (aq)?
Na2CO3
Cu
Zn
CuO
Which element is reduced in the following decomposition?
(NH4)2Cr2O7 (s) → N2 (g) + Cr2O3 (s) + 4H2O (g)
N
H
Cr
O
Which of the following is not a redox reaction?
CH4 (g) + Cl2 (g) → CH3Cl(g) + HCl(g)
C(s)+O2(g)→CO2(g)
2CO (g) → CO2 (g) + C (s)
CH3COOH (aq) + NaOH (aq) → CH3COONa (aq) + H2O (l)
HL only - sorry SL What is the standard half-cell potential of copper if the “zero potential reference electrode” is
changed from the standard hydrogen electrode to a standard zinc electrode?
-1.1
-0.34
+0.34
+1.1
What is the graphical relationship between n and T in the ideal gas equation, PV = nRT, all other
variables remaining constant?
What are the approximate bond angles and structure of crystalline SiO2?
A
B
C
D
What occurs at the anode (positive electrode) during the electrolysis of molten strontium bromide?
Formation of bromine and oxidation
Formation of bromine and reduction
Formation of strontium and oxidation
Formation of strontium and reduction
