Chemistry questions
29404 published questions with worked solutions.
- Which is NOT the correct statement for the nucleophilic reagent? (i) They are electron loving species (ii) They attack the...
- Arrange the following compounds in order of increasing dipole moment: (I) Toluene (II) m-Dichlorobenzene (III) o-Dichlorobenzene...
- Chlorobenzene is _________
- Which of the following CANNOT be prepared by direct halogenation of benzene?
- In aryl halides, the reactivity is controlled by stronger _________ and o, p orientation is controlled by weaker _________
- The phenomenon in which atoms or groups in a compound can attract electrons, is called _____________
- Example of species showing - I effect is _______
- Replacement of -Cl of chlorobenzene to give phenol requires drastic conditions but chlorine of 2,4-dinitrochlorobenzene is...
- Friedel-Craft's reaction of bromobenzene with methyl iodide gives ________
- The commercial used to DDT and benzene hexachloride are ________
- For the reaction; C_2H_5OH + HX ZnCl_2 C_2H_5X + H_2O , where HX is a halogen acid. The order of reactivity of halogen acids for...
- Heterolysis of carbon-chlorine bond produces __________
- The electron deficient reagents, which attack the negatively charged carbanions are called _______
- RC N can be converted to RCH_2NH_2 by _________
- Heterolytic fission gives rise to _________
- Which of the following reactions does NOT show nucleophilic substitution of C_2H_5Br ?
- In alkaline hydrolysis of tert-Butyl bromide, _________
- Halogenation of alkanes is _____
- Which of the following is a primary halide? [DCE 2004, AIIMS 2008]
- Which of the following is the CORRECT order for strength of C – X bond? [GUJ CET 2014]