Predict the product (B) in the following sequence of reactions
Ethyl benzene A B
Benzaldehyde
Benzoic acid
Benzophenone
Acetophenone
Which one of the following can be prepared by Gabriel phthalimide synthesis?
Aniline
o- toluidine
Benzylamine
N-methylethanamine
4-nitrotoluene is treated with bromine to get compound 'P' which is reduced with Sn and HCl to get compound 'Q'. 'Q' is diazotised and the product is treated with phosphinic acid to get compound 'R'. 'R' is oxidised with alkaline solution KMnO4 to get the final product. Identify the final product.
2-bromobenzoic acid
2-bromo-4-hydroxybenzoic acid
benzoic acid
3-bromobenzoic acid
In double strand helix structure of DNA, heterocyclic base cytosine forms hydrogen bond with
Adenine
Guanine
Purine
Uracil
0ne mole of hydrazine (N2H4) loses 10 moles of electrons in a reaction to form a new compound X. Assuming that all the nitrogen atoms in hydrazine appear in the new compound, what is the oxidation state of nitrogen in X? (Note - There is no change in the oxidation state of hydrogen in the reaction).
-1
-3
+3
+5
C.
+3
Given, 1 mol of H2N - NH2 (hydrazine), it loses 10 moles of electrons to form a new compound that contains both the N-atoms with same oxidation number means:
N2H4 → 10e- + X (product)
Since, oxidation number of both the N-atoms are same. New total oxidation number of new compound X = 4 - 10 + x = 0
x = +6
Therefore, each N-atom has oxidation state = +3