. 1 pt(s). |
When an alkali is mixed with an acid, neutralisation occurs because the — | |
A. | base cools down | |
B. | acid evaporates | |
C. | base chemically reacts with the acid | |
D. | mass of the solution increases |
. 1 pt(s). |
Complete the equation:… Magnesium + hydrochloric acid —> ……..+ water | |
A. | Magnesium chlorate | |
B. | Magnesium chloride | |
C. | Magnesium chlorite | |
D. | Magnesium hydrochloride |
. 1 pt(s). |
An alkali is able to “cancel” out an acid. What is the chemical name for cancelling out the acid? | |
A. | nullify | |
B. | annihalate | |
C. | neutralise | |
D. | overcome |
. 1 pt(s). |
What does this paper indicate?
|
||
A. | The paper is nonreactive | ||
B. | The liquid is acidic | ||
C. | The liquid is water | ||
D. | The liquid is alkaline |
. 1 pt(s). |
With what would you neutralise potassium hydroxide to produce potassium nitrate? | |
A. | hydrochloric acid | |
B. | sulphuric acid | |
C. | nitric acid | |
D. | citiric acid |
. 1 pt(s). |
Which alkali would be reacted with hydrochloric acid to form lithium chloride? | |
A. | lithium hydorxide | |
B. | sodium hydroxide | |
C. | sodium chloride | |
D. | lithium nitrate |
. 1 pt(s). |
A purple colour when using universal indicator indicates the solution is | |
A. | neutral | |
B. | acidic | |
C. | alkali | |
D. | blackcurrant juice |
. 1 pt(s). |
A yellow colour when using universal indicator tells you that the solution must be a | |
A. | strong alkali | |
B. | weak alkali | |
C. | neutral solution | |
D. | weak acid | |
E. | strong acid |
. 1 pt(s). |
What does lemon juice contain to make it acidic? | |
A. | citiric acid | |
B. | hydrochloric acid | |
C. | baking soda | |
D. | sodium hydroxide |
. 1 pt(s). |
Milk of magnesia is a medicine used to treat indigestion. Milk of magnesia is most likely to be | |
A. | alkali | |
B. | neutral | |
C. | from a cow | |
D. | acidic |
. 1 pt(s). |
The pH of the stomach juices is most likely to be | |
A. | 2 | |
B. | 5 | |
C. | 7 | |
D. | 9 | |
E. | 11 |