K- 1 x 2 =2
OH- 1 x 2 = 2
Cu- 2
(CIO3)- 6
K- 1 x 2= 2
OH- 2
Cu- 2
(CIO3)- 3 x2=6
2KOH+ Cu(CIO3)2 - 2KCIO3+ Cu(OH)2
The answer to the question is A
Answer:
There are different phases of railroad expansion with the innovations in technology.
Explanation:
Few of the technological innovations are described below that leads in railroad expansion more rapid.
1. Centralized Traffic control (CTC) is introduced in 1960's that is used to control the traffic on railroads using different signal control.
2. In 1990's after computer technology involvement, railway ticket and reservation system is automate and being centralized. That makes the railroad expansion improve.
3. Bullet train technology has been introduced, that makes the railway trains more faster.
4. Electric trains has been introduced to use green energy and reduce the dependency on the fuel to make environment clean and green.
Answer:
Second Generation: transistors
Third Generation: integrated circuits
First Generation: vacuum tubes
Explanation:
Generations of computers are categorized based on the technologies that were used in them.
Given innovations or technologies are:
<u>transistors
:</u>
Transistors were introduced in the second generation in place of vacuum tubes.
<u>integrated circuits
:</u>
Integrated circuits were introduced in the third generation. An IC consists of multiple transistors.
<u>vacuum tubes:</u>
The very first generation of computers used vacuum tubes to do the calculations. the only drawback was that the tubes used to heat up very soon.
Hence,
Second Generation: transistors
Third Generation: integrated circuits
First Generation: vacuum tubes
