Haloalkanes And Haloarenes Quiz-10
Dear Readers,
The one subject in NEET which is candidates who can easily attain good marks is Chemistry. That's the reason, often, one doesn’t pay notice and choose to compromise it. But if one wants to rank above others, the tip is to be thorough with NEET chemistry concepts. The understanding of reactions and definite basic understanding is what requires major attention in Chemistry but once done it only gets simpler from there. The main focus on the to-do list should be on getting a hang of the NCERT syllabus of NEET chemistry..
Q1. Compound ‘A’ reacts with alcoholic KOH to yield compound ‘B’ which on ozonolysis followed by reaction with Zn/H2 O gives methanal and propanal. Compound ‘A’ is
Q4. Decomposition of benzene diazonium chloride by using Cu2 Cl2/HCl to form chlorobenzene is
Q5.The given reaction is an example of,
C2 H5 Br+KCN(aq.)⟶ C2 H5 CN+KBr:
Solution
(b) Br is replaced by a nucleophile CN-.
(b) Br is replaced by a nucleophile CN-.
Q6. Which of the following alkyl halide is used as methylating agent?
Solution
(d) RX are called alkylating agent. CH3 X is methylating agent; C2 H5 X is ethylating agent.
(d) RX are called alkylating agent. CH3 X is methylating agent; C2 H5 X is ethylating agent.
Q7.Tertiary alkyl halides are practically inert to substitution by SN 2 mechanism because of
Solution
Q8.Chloroform is used as an:
Solution
(b) Vapours of chloroform on inhaling causes unconsciousness.
(b) Vapours of chloroform on inhaling causes unconsciousness.
Q9.Chloretone used as a drug is prepared by the reaction of acetone with:
Solution
(c)
Chloroform
Q10. Which of the following compounds gives trichloromethane on distilling with bleaching powder?
Solution
(c)
Ethanol on reaction with bleaching powder, gives chloroform (trichloromethane).
CaOCl2 + H2 O → Ca(OH)2 + Cl2
C2 H5 OH + Cl2 → CH3 CHO + 2HCl
CH3 CHO + 3Cl2 → CCl3 .CHO + 3HCl
2CCl3 .CHO + Ca(OH)2 (in presence of Chloral)→ 2CHCl3+(HCOO)2 Ca
chloroform