For the following questions answer them individually
Concentrated $$HNO_3$$ reacts with Iodine to give
Dinitrogen and dioxygen the main constituents of air do not react with each other in atmosphere to form oxides of nitrogen because
Match List-I with List-II
| List-I (Complex) | List-II (Hybridization) |
|---|---|
| A. $$Ni(CO)_4$$ | I. $$sp^3$$ |
| B. $$[Ni(CN)_4]^{2-}$$ | II. $$sp^3d^2$$ |
| C. $$[Co(CN)_6]^{3-}$$ | III. $$d^2sp^3$$ |
| D. $$[CoF_6]^{3-}$$ | IV. $$dsp^2$$ |
Choose the correct answer from the options given below
The major product in the given reaction is
Compound I is heated with Conc. HI to give a hydroxy compound A which is further heated with Zn dust to give compound B. Identify A and B.
Find out the major product for the above reaction.
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Aniline on nitration yields ortho, meta & para nitro derivatives of aniline.
Reason R: Nitrating mixture is a strong acidic mixture.
In the light of the above statements, choose the correct answer from the options given below
Match List I with List II
| List-I (Polymer) | List-II (Nature) |
|---|---|
A![]() | I. Thermosetting polymer |
B![]() | II. Fibers |
C![]() | III. Elastomer |
D![]() | IV. Thermoplastic polymer |
Two statements in respect of drug-enzyme interaction are given below
Statement I: Action of an enzyme can be blocked only when an inhibitor blocks the active site of the enzyme.
Statement II: An inhibitor can form a strong covalent bond with the enzyme.
In the light of the above statements, choose the correct answer from the options given below
The formulas of A and B for the following reaction sequence are