Deck 14 (261 - 280) Flashcards
1
Q
- Select the correct formula for ammonium carbonate:
a. NH4CO3
b. NH3CO3
c. (NH4)2(CO3)3
d. (NH4)2CO3
A
(NH4)2CO3
2
Q
- The maximum number of orbitals in the third shell is ?
A
9
3
Q
- PIC
A
4
Q
- Express the following quantity in litres: 15 ml
A
0.015 L
5
Q
- What is the IUPAC name of the following hydrocarbon?
H2C=CH-CH=CH2
A
1,3-butadiene
6
Q
- Which of the following formulas is the correct one for barium sulphide?
a. BaS2
b. Ba2S
c. BaS
d. BaSO3
A
BaS
7
Q
- The structure R - CO - O - CO -R’
is general formula for ——- ?
A
anhydride
8
Q
- How many electrons is found in an atom of 12/6 C ?
A
6
9
Q
- PIC
A
10
Q
- When acids are dissolved in water they produce ions that help in conducting the electricity.
This process is known as …
A
dissociation
11
Q
- Name the process that converts unsaturated fatty acids to saturated fatty acids
A
hydrogenation
12
Q
- Which of the diatomic element has a triple bond between its atoms?
a. chlorine
b. hydrogen
c. oxygen
d. nitrogen
A
nitrogen
13
Q
- PIC
A
14
Q
- To which class of organic compounds does the following compound belong?
H3C-CH2-OH
a. ether
b. aldehyde
c. alcohol
d. carboxylic acid
A
alcohol
15
Q
- The concentration of H+ in solution is 1x10-4 mol.dm-3. pH of the solution is:
a. 10
b. 14
c. 4
d. 1x10-10
A
4
16
Q
- Select the correct molecular formula for calcium nitrate:
a. CaNO3
b. Ca(NO3)2
c. Ca(NO2)2
d. Ca2(NO3)3
A
Ca(NO3)2
17
Q
- To which class of organic compounds does the following compound belong?
HC[triple bond]C-CH2-CH3
a. alkene
b. aromatic
c. alkyne
d. cycloalkane
A
alkyne
18
Q
- Aqueous means:
a. it swims
b. without water
c. in water solution
d. none of the previous answers
A
in water solution
19
Q
- PIC
A
20
Q
- What type of chemical bond holds the atoms together within a water molecule?
a. ionic bond
b. non-polar covalent
c. hydrogen bond
d. polar covalent
A
polar covalent bond
