Question

Express the form of p/q . 2.6578 bar on 78​

Answer 1

Step-by-step explanation:

General Methods of Preparation of Haloalkanes

1. From Alcohols

In Groove’s method, ZnC12 is used to weaken the C-OH bond. In case of 3° alcohols, ZnC12 is not required.

The reactivity order of halogen acids is HI > HBr > HCl.

Darzen procedure is the best method for preparing alkyl halides from alcohols since both the by products (SO2 and HCl) are gaseous and escape easily.

Answer 2

Step-by-step explanation:

Given:-

2.6578 bar on 78

To find :-

Express the form of p/q . 2.6578 bar on 78

Solution:-

Given number = 2.6578 bar on 78

Let X = 2.65787878... -------------(1)

Since the periodicity is 2 multiply equation (1) with 100 then

=> 100×X = 2.65787878...× 100

=> 100 X = 265.787878... ---------(2)

On Subtracting (1) from (2)

100 X = 265.78787878...

X = 2.65787878...

(-)

_____________________

99X = 263.13000000...

_____________________

=> 99X = 263.13

=> X = 263.13/99

=> X = (26313/100)/99

=>X = 26313/9900

2.6578 bar on 78 = 26313/9900

Answer:-

The p/q form of the given number 2.6578 bar on 78 is 26313/9900