WorksheetsAdvanced Chemistry Quiz
Total questions: 8
Worksheet time: 6mins
Which of the following is a conjugate acid-base pair for the reaction?
NH3 + H2O -> NH4+ + OH-
Conjugate Acid: NH4+
Conjugate Base: H2O
Conjugate Acid: NH3
Conjugate Base: NH4+
Conjugate Acid: H2O
Conjugate Base: NH4+
Conjugate Acid: H2O
Conjugate Base: OH-
Define "electrophile".
an electron-deficient species that is attracted to an electron-rich center
an electron-rich species that is attracted to an electron-poor center
a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
the positively charged centre of an atom and contains most of its mass
In which of the following does chromium (Cr) NOT have an oxidation state of +6? (Hint: Oxygen (O) always has an oxidation state of -2. You need to balance up the oxidation states such that the molecule has no charge, or has a charge that is specified.)
CrO3
CrO42-
Cr2O72-
Cr2O3
What is the formula of the nitrite ion?
N3-
NH4+
NO2-
NO3-
The electronic configuration of a Group 13 element is:
1s22s22p63s23p63d34s2
1s22s22p63s23p6 3d104s24p1
1s22s22p63s23p6 3d104s24p2
1s22s22p63s23p6 3d104s24p3
Which species is the most powerful oxidising agent?
Bromide
Bromine
Chloride
Chlorine
What is the name of the NO2+ ion?
Nitrate ion
Nitrite ion
Nitronium ion
Nitrosonium ion
Chloroform is an important drug. It is produced by reacting methane, a greenhouse gas, with chlorine, in the presence of ultraviolet light.
CH4 + Cl2 -> CH3Cl + HCl
This can be further reacted to form dichloromethane, or DCM, an important halogenated organic solvent.
CH3Cl + Cl2 -> CH2Cl2 + HCl
Generally, what are both reactions called?
Free Radical Substitution
Chlorine-Methane Reaction
Ultraviolet-induced Reaction
Hydrogen Substitution
