I believe the answer is d
Isopropyl is: CH3 - CH - CH3
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Heptane is: CH3 - CH2 - CH2 - CH2 - CH2 - CH2 - CH3
Then 2,2 isopropyl heptane is:
CH3 - CH - CH3
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CH3 - C - CH2 - CH2 - CH2 - CH2 - CH3
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CH3 - CH - CH3.
There you can count that the longest carbon chain has 8 carbon atoms.
So the right name is of an octane.
I will rearrange the chain to show the 8 carbon chain in a row:
CH3 CH3
| |
CH3 - CH - C - CH2 - CH2 - CH2 - CH2 - CH3
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CH3 - CH - CH3
Now, you can see that the right name is 3 isopropyl - 2, 3 dimethyl octane
Answer:
64 Kbps
Explanation:
ISDN stands for Integrated Services Digital Network. It makes use of two types of channels:
B type : which is used for carrying data/voice
D type : which carries control and signalling information.
ISDN supports two different service levels:
- Basic Rate Interface (BRI) - home and small users
- Primary Rate Interface(PRI) - larger enterprise scenarios
Both BRI and PRI make use of set of B and D type channels for data transfer.
Each B channel or Bearer channel has a throughput of 64 Kbps whereas D channel has a throughput of 16 Kbps.
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