Deck 18 (341 - 360) Flashcards
1
Q
- PIC
A
2
Q
- What is the numerical value of water ionic product?
A
Kw = 10*-14 mol.dm-6
3
Q
- How many chiral (asymmetric) carbon atoms are present in the fructose molecule?
A
3
4
Q
- How many moles of carbon monoxide are needed to react completely with 7 moles of oxygen gas to form carbon dioxide ?
2 CO(g) + O2(g) -> 2 CO2(g)
a. 3.5
b. 7
c. 21
d. 14
A
14
5
Q
- What is the total number of electrons in the “2p” sublevel of a chlorine atom 17Cl in the ground state?
a. 6
b. 2
c. 7
d. 5
A
6
6
Q
- PIC
A
7
Q
- What is the correct name for ion SO42- ?
a. sulfur tetroxide
b. sulfate
c. sulfide
d. sulfite
A
sulfate
8
Q
- Ethane is ……. in water.
a. solvent
b. insoluble
c. dissolved
d. soluble
A
insoluble
9
Q
- PIC
A
10
Q
- Silicon is:
a. a homogenous mixture
b. an element
c. a compound
d. a physical property
A
an element
11
Q
- PIC
A
12
Q
- Which one of the following could not be a Brønsted-Lowry acid?
a. NH4+
b. BF3
c. H3O+
d. H2O
A
BF3
13
Q
- What product would you expect from reduction of ketones?
A
secondary alcohol
14
Q
- The decomposition of hydrogen peroxide to water and oxygen is a:
a. chemical change
b. homogenous mixture
c. physical change
d. compound
A
chemical change
15
Q
- Fats are composed of:
a. fatty acids and simple sugars
b. fatty acids and glycerol
c. amino acids and glycerol
d. simple sugars and amino acids
A
fatty acids and glycerol
