Answer:
SN2 mechanism
Explanation:
This is a situation were substitution occurs with inversion of configuration at the chiral centers which proceed through concerted backside attack where nucleophile approaches the alkyl halides 180° from c-br bond, as c-(nucleophile) bond forms , the c -(leaving group) bond breaks.
<u>Answer:</u> The order of increasing boiling points follows:
<u>Explanation:</u>
The expression of elevation in boiling point is given as:
where,
= Elevation in boiling point
i = Van't Hoff factor
= change in boiling point
= boiling point constant
m = molality
For the given options:
- <u>Option 1:</u> 0.050 m
Value of i = 3
So, molal concentration will be =
- <u>Option 2:</u> 0.100 m ethanol
Value of i = 1 (for non-electrolytes)
So, molal concentration will be =
- <u>Option 3:</u> 0.090 m NaCl
Value of i = 2
So, molal concentration will be =
As, the molal concentration of NaCl is the highest, so its boiling point will be the highest.
Thus, the order of increasing boiling points follows:
Answer:
Explanation:
For one B2 molecule 3 A2 molecules are reacting means,
the ratio is 1:3
Out of 126 molecule = 126/3 =42 molecules are required for the reaction,
therefore the 54-42= 10 molcules of B2 will reamin in the end of reaction.
Which is true about fossil fuels? The statement that is
true about fossil fuels is Coal came
from swampy environments, while oil and natural gas came from open ocean
environments. The answer is letter B. The rest of the choices is not true for fossil fuel