| Question (1):
The characteristic properties of an acid is due to the presence of ___________.
|
| 1. |
hydride ions |
| 2. |
hydroxyl ions |
| 3. |
hydronium ions |
| 4. |
oxide ions |
|
| Ans: 3 |
|
| Question (2):
A strong acid in solution is ___________.
|
| 1. |
mostly molecules |
| 2. |
mostly ions |
| 3. |
both molecules and ions |
| 4. |
mostly water |
|
| Ans: 2 |
|
| Question (3):
A weak acid in solution is ___________.
|
| 1. |
mostly molecules |
| 2. |
mostly ions |
| 3. |
both molecules and ions |
| 4. |
less water |
|
| Ans: 3 |
|
| Question (4):
The pH of a carbonated drink is ___________.
|
| 1. |
less than 7 |
| 2. |
more than 7 |
| 3. |
equal to 7 |
| 4. |
approximately 7.8 |
|
| Ans: 1 |
|
| Question (5):
An acid is ___________.
|
| 1. |
a proton donor |
| 2. |
a proton acceptor |
| 3. |
electron donor |
| 4. |
electron acceptor |
|
| Ans: 1 |
|
| Question (6):
The drying of milk of lime (white washing) is due to the action of ___________.
|
| 1. |
oxygen in air |
| 2. |
nitrogen in air |
| 3. |
CO2 in air |
| 4. |
hydrogen in air |
|
| Ans: 3 |
|
| Question (7):
A salt derived from a strong base and a weak acid will give a salt that is _______.
|
| 1. |
acidic |
| 2. |
basic |
| 3. |
neutral |
| 4. |
volatile |
|
| Ans: 2 |
|
| Question (8):
When litmus is added to a solution of borax it turns___________.
|
| 1. |
red |
| 2. |
pink |
| 3. |
remains colourless |
| 4. |
blue |
|
| Ans: 4 |
|
| Question (9):
Which of the following is not a mixed salt?
|
| 1. |
K.Ca.PO4 |
| 2. |
Ca(OCl)Cl |
| 3. |
Na.K.CO3 |
| 4. |
KCl |
|
| Ans: 4 |
|
| Question (10):
Which is a soluble base in water?
|
| 1. |
Fe(OH)3 |
| 2. |
Cu(OH)2 |
| 3. |
Zn(OH)2 |
| 4. |
NaOH |
|
| Ans: 4 |
|
| Question (11):
Which of the following is a weak base?
|
| 1. |
NaOH |
| 2. |
KOH |
| 3. |
NH4OH |
| 4. |
Ca(OH)2 |
|
| Ans: 3 |
|
| Question (12):
Choose the acid salt from the following:
|
| 1. |
NaNO3 |
| 2. |
Na2SO4 |
| 3. |
NaHSO4 |
| 4. |
Na2CO3 |
|
| Ans: 3 |
|
Question (13):
In the following reaction, identify the products
|
| 1. |
sodium chloride and water |
| 2. |
water and carbon dioxide |
| 3. |
sodium carbonate, carbon dioxide and water |
| 4. |
sodium chloride, carbon dioxide and water |
|
| Ans: 4 |
|
Question (14):
In the following reaction, identify the salt formed
|
| 1. |
NH4NO3 |
| 2. |
(NH4)2SO4 |
| 3. |
(NH4)3PO4 |
| 4. |
(NH4)2S |
|
| Ans: 2 |
|
| Question (15):
Which of the following ionic species exist in a neutralization reaction?
|
| 1. |
HCl- |
| 2. |
H+ |
| 3. |
H2O |
| 4. |
H3O+ |
|
| Ans: 4 |
|
