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- 1. Multiple Choice
Which substance is an acid?
Water
Bleach
Orange juice
Washing powder
- 2. Multiple Choice
Which pH levels indicated a strong acid?
1-3
4-6
8-11
12-14
- 3. Multiple Choice
Which pH level indicates a weak alkali?
1-3
4-6
8-11
12-14
- 4. Multiple Choice
Acids taste...
Sweet
Salty
Sour
Smooth
- 5. Multiple Choice
Alkalis feel...
Rough
Granulated
Soapy
Smooth
- 6. Multiple Choice
What does this hazard symbol mean?
toxic
flammable
corrosive
explosive
- 7. Multiple Choice
What pH range would you get for an acid?
0-6
7
7-14
2-10
- 8. Multiple ChoicePure water has a pH of 7. Pure water _______.is a baseis a neutral substancecould be either an acid or a baseis an acid
- 9. Multiple Choice
PH scale
pH ruler
pH scale
pH statistical tables
- 10. Multiple ChoiceWhich of the following acids do we have in our stomach?Ethanoic acidHydrochloric acidNitric acidSulphuric acid
- 11. Multiple ChoiceIf an acid is combined with a base of equal strength, the result will most likely bea neutral solution.a stronger acid.impossible to tell without testing the pH.a stronger base
- 12. Multiple ChoiceWhen dissolved in water, acids produce:basessaltshydrogen ionshydroxide ions
- 13. Multiple ChoiceWhich type of ion does a base produce when it is dissolved in water?oxideoxygenhydrogenhydroxide
- 14. Multiple ChoiceWhich of the following is true about acids and bases?The lower the pH, the stronger the acidthe higher the pH, the stronger the acidThe lower the pH, the more neutral the acidThe higher the pH, the weaker the base
- 15. Multiple ChoiceWhat is another name for a base?AcidAlkalinepH
- 16. Multiple ChoiceHow are metal oxides formed?When metals react with oxide.When metals react with water.When metals react with air.When metals react with oxygen.
- 17. Multiple ChoiceAcid + base --> ?salt + hydrogen gas + watersalt + carbon dioxide + watersalt + watersalt only
- 18. Multiple ChoiceWhat is the salt formed from the reaction of hydrochloric acid + magnesium metal?Hydrogen magnesiumMagnesium chlorineMagnesium chlorideMagnesium hydrogen
- 19. Multiple ChoiceWhich of the following is a positive test for hydrogen gas?Splint will continue to burn in presence of hydrogen gas.Lighted splint extinguishes with no sound.A white precipitate is formed when the gas is passed through limewater.Lighted splint extinguishes with a 'pop' sound in presence of hydrogen gas.
- 20. Multiple Choice
What does this label mean?
Flammables
Corrosives
Severe Health Hazards
Environmental Hazards
- 21. Multiple Choice
Which of the following symbols represents a chemical that is an oxidiser?
- 22. Multiple Choice
Which of the following symbols represents a substance that eats away other substances?
- 23. Multiple Choice
Which is the most suitable method for separating the products of the reaction below:
NaCl (aq) + AgNO3 (aq) --> AgCl (s) + NaNO3 (aq)
chromatography
crystallisation
distillation
filtration
- 24. Multiple Choice
Salts that are made with hydrochloric acid are called ....
chlorides
nitrates
hydrochoric
carbonates
- 25. Multiple ChoiceSalts that are made with sulfuric acid are called ______________.chloridessulfatesnitratescarbonates
- 26. Multiple ChoiceSalts that are made with nitric acid are called ______________.chloridessulfatesnitratescarbonates
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