Do 36-29 which is 7 and since 29 is before 36 it’s negative so -7
Answer:
13
Explanation:
Let x be the number of branches of a tree
Total number of trees=43
Total number of leaves=19,565
Number of leaves on one tree=35
Number of leaves on x branches of a tree=35 x
Total number of leaves on x branches on 43 trees=
According to question
Using division property of equality
Hence, the total number of branches of each tree=13
Cytosine guanine thymine adenine
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