Answer:
conc. fuming, 1 mol H2SO4
Dilute NaOH
Br2
Dilute H2SO4
Explanation:
The synthesis of ortho-bromophenol follows the reaction sequence shown in the image attached.
First of all, the phenol is sulphonated using concentrated sulphuric acid at 100°C. Carrying out the reaction at 100°C ensures that the para-isomer predominates. Lower temperatures favour the formation of the ortho isomer. Dilute sodium hydroxide is added before the addition of bromine.
Bromine molecule is then added. The incoming electrophile now attaches to the ortho position. Dilute acid is added at 100°C to remove the -SO3H thereby obtaining the Ortho-bromophenol
In general, the given alcohol above belongs to tertiary, and this is the reason why it doesn't undergo oxidation. Now, if you will try to analyze the given molecular formula, you will end up having seven (7) carbon atoms which make up a chiral carbon. So the answer would be option C. Hope that answer helps.
The London dispersion force is "the weakest intermolecular force"
The correct answers are 1 and 4.<span>
1. Both are hormones that control glucose
production and storage in the body.
2. Insulin and glucagon have opposite effects on
blood glucose level.
<span>Both hormones are secreted by the pancreas. Pancreas has 2 cells as alpha and beta. alpha cells
produce glucagon and beta cell produce insulin. Insulin is responsible for decreasing blood glucose
level and glucagon is responsible for increasing blood glucose level. Hence,
both hormones have opposite effects on blood glucose level and they help to
maintain blood glucose level.</span></span>
<span> </span>