WorksheetsChemistry Comprehensive (Qualitative Analysis)
Total questions: 40
Worksheet time: 3600secs
Acid and metal react to form:
Hydrogen Gas
Salt
Oxygen Gas
Carbon Dioxide
Acid and Carbonate react to form:
Carbon Dioxide
Water
Salt
Hygrogen gas
Acid and Base react to form:
Salt
Water
Hydrogen Gas
Carbon Dioxide
A strong acid undergoes ________ dissociation in aqueous solution to form a higher concentration of H+ while a weak acid undergoes _______ dissociation in aqueous solution to form a lower concentration of H+ ions.
complete, partial
partial, complete
All Alkalis are bases, but not all bases are Alkalis.
True
False
Ammonium salt reacts with Alkali to form
Salt, water and ___________
Ammonia gas
Ammonia (aq)
Calcium Oxide and Calcium Hydroxide are used to neutralise acidic soil.
Choose only 2 answers.
Aqueous Ammonia is used for ________ and ___________.
Window cleaning solution
Toothpaste
Detergent
Fertilizer
Screened Methyl Orange is Violet in Acidic solution.
What colour is Screened Methyl Orange in Alkaline solution?
Yellow
Green
Write down the name of a neutral oxide.
(a)
Amphoteric oxides can be memorised with the acronym, ZAP
Z is for Zinc
A is for Aluminium
P is for?
Potassium
Pb (Lead)
Phosphorus
Platinum
When salts combine with water molecules to form crystals, these water molecules are known as water of crystallisation.*
Salts that contain water of crystallisation are called ________ _____.
(a)
All Iodides and Bromides are soluble except for ____ and ______ bromide/iodide.
Lead
Silver
Gold
Copper
Titration is used for the preparation of:
'SPA' salts
Non-SPA Salts
Insoluble salts
When isotopes have a similar number of valence electrons, this means they have the same...
Physical properties
Structural Formula
Chemical Formula
Chemical properties
QA: Cations that form white precipitate that are soluble in excess NaOH (aq) are Zinc, Aluminium and Pb (Lead) to give a colourless solution.
What is the Cation that forms a white precipitate that is insoluble in
excess NaOH (aq)?
Calcium
Potassium
Sodium
Iron
When a measurement is directly or inversely related to another measurement, it must be related by a (a) value
Isomers have the same _________ formula but different __________ formula.
Molecular, structural
Empirical, structural
Structural, molecular
structural, chemical
Characteristics of transition metals specific to transition metals:
Variable oxidation states
Form coloured compounds
Good catalysts
High melting and boiling points
High Density
Halogens are powerful _________ agents as they gain electrons readily.
*_________ power decreases down the group
(a)
Elements is Group 0 or Group VIII are known as noble gases, or inert gases.
They are the (a) reactive elements in the periodic table
Volume composition of gases present in dry air:
__% Nitrogen gas
__% Oxygen gas
__% Others
78
1
21
99
Effect of atmospheric pollutants on human health:
Carbon monoxide
Pick the cause, and the effect.
Reacts with haemoglobin in blood to form oxyhaemoglobin
Reacts with haemoglobin in blood to form carboxyhaemoglo-bin
Reduces ability of haemoglobin to transport oxygen to rest of body, leading to death
irritates eyes and lungs, causing respiratory issues
Effect of atmospheric pollutants on human health:
Sulfur Dioxide/Nitrogen oxides (NO and NO2)
State the cause, and effect.
Irritates eyes and lungs, causing respiratory difficulties
High levels of these gases may lead to respiratory problems (e.g. bronchitis)
High levels of these gases may lead to you running a 10km marathon but you run like a snail
You may go blind
24 dm3 = (a) cm3
write your answer in numbers (e.g. 1, 20, 300)
Sources of atmospheric pollutants:
Nitrogen Oxides
Lightning activity, heat energy released by lightning causes nitrogen and oxygen to react
Internal combustion of car engines, high temperatures in car enables nitrogen and oxygen in air to react
Volcanic eruptions
Incomplete combustion of nitrogen containing substances
Sources of atmospheric pollutants:
Sulfur Dioxide
Volcanic eruptions
Combustion of fossil fuels, which contain sulfur
incomplete combustion of sulfur containing substances
Your dog's smelly farts
Sources of atmospheric pollutants:
Methane
Released when plant and animal matter decay
Decay of rubbish in landfills
Digestion of food in sheep and cows
Decomposition of your life and spirit
Effects of Acid Rain
Leaches nutrients from soil, plants wither and die
Lowers pH of natural bodies, which may be too acidic for aquatic life to survive
Reacts with metals and with carbonates in marble and limestone, corroding and damaging structures
Ow pain why rain ouchie
Name one of the two main groups of condensation polymers
(a)
What is the name of this linkage?
(a)
What is this name of this linkage?
(a)
Unsaturated monomers means that the monomers contain C=C double bonds.
True or False?
True
False
Alcohols are a homologous series of organic compounds that contain the (-OH) functional group.
What is the name of this functional group?
(a)
Conditions for catalytic addition of steam to ethene:
300oC, __atm and _____ as catalyst
60 atm
H3PO4
finely divided iron
nickel
300 atm
Reagents: Hydrogen
Conditions required for hydrogenation:
200oC
300oC
nickel as catalyst
iron as catalyst
Reagent: Aqueous Bromine
Observations: Reddish-brown bromine solution decolourises
Conditions required for bromination (test for alkenes):
-
300oC, 60atm, H3PO4 (aq) as catalyst
200oC, nickel as catalyst
High temperature and pressure, catalyst
All organic compounds contain:
Carbon
Hydrogen
Oxygen
Nitrogen
Which is the functional group of the homologous series of carboxylic acid?
In electrolysis, the 2 general rules are:
Metals or hydrogen are formed at the cathode
Metals or hydrogen are formed at the anode
Non-metals, other than hydrogen, are formed at the anode
Non-metals, other than hydrogen, are formed at the cathode
During electrolysis, electrons flow from the ________ terminal to ________ terminal of the battery
positive, negative
negative, postive
negative, negative
positive, positive
