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question_answer1) Assertion: \[CHC{{l}_{3}}\] is stored in transparent bottles. Reason: \[CHC{{l}_{3}}\] is oxidised in dark. [AIIMS 1996] Read the assertion and reason carefully to mark the correct option out of the options given below:
question_answer2) Assertion: Addition of bromine to trans-2-butene yields meso-2, 3-dibromobutane Reason: Bromine addition to an alkene is an electrophilic addition. [IIT-JEE (Screening) 2001] Read the assertion and reason carefully to mark the correct option out of the options given below:
question_answer3) Assertion: Alkyl halides are soluble in organic solvents. Reason: p-dichlorobenzene possesses low melting point. Read the assertion and reason carefully to mark the correct option out of the options given below:
question_answer4) Assertion: \[CC{{l}_{4}}\] is not a fire extinguisher. Reason: \[CC{{l}_{4}}\] is insoluble in water. Read the assertion and reason carefully to mark the correct option out of the options given below:
question_answer5) Assertion: Aqueous hydrohalogen acids are used to prepare alkyl halides from alkenes. Reason: Hydrogen iodide readily reacts with alkenes to form alkyl halides. Read the assertion and reason carefully to mark the correct option out of the options given below:
question_answer6) Assertion: Alkyl halides form alkenes when heated above\[300{}^\circ C\]. Reason: \[C{{H}_{3}}C{{H}_{2}}I\] react slowly with strong base when compared to\[C{{D}_{3}}C{{H}_{2}}I\]. Read the assertion and reason carefully to mark the correct option out of the options given below:
question_answer7) Assertion: Halogen acids react with alcohols to form haloalkanes. Reason: Order of reactivity of halogen acids \[HCl>HBr>HI\] Read the assertion and reason carefully to mark the correct option out of the options given below:
question_answer8) Assertion: is less reactive than towards reactions. Reason: Tertiary alkyl halides react predominantly by \[{{S}_{N}}1\] mechanism. Read the assertion and reason carefully to mark the correct option out of the options given below:
question_answer9) Assertion: Electron withdrawing groups in aryl halides decrease the reactivity towards nucleophilic substitution. Reason: 2, 4-Dinitrochlorobenzene is less reactive than chlorobenzene. Read the assertion and reason carefully to mark the correct option out of the options given below:
question_answer10) Assertion: Aryl halides undergo electrophilic substitutions more readily than benzene. Reason: Aryl halide gives a mixture of o- and p- products. Read the assertion and reason carefully to mark the correct option out of the options given below:
question_answer11) Assertion: Addition of \[B{{r}_{2}}\] to cis-but-2-ene is stereoselective. Reason: \[S{{N}^{2}}\] reactions are stereospecific as well as stereoselective. Read the assertion and reason carefully to mark the correct option out of the options given below:
question_answer12) Assertion: Optically active 2-iodobutane on treatment with NaI in acetone undergoes recemization. Reason: Repeated Walden inversions on the reactant and its product eventually gives a racemic mixture. Read the assertion and reason carefully to mark the correct option out of the options given below:
question_answer13) Assertion: Nucleophilic substitution reaction on an optically active alkyl halide gives a mixture of enantiomers. Reason: The reaction occurs by \[S{{N}^{1}}\] mechanism. Read the assertion and reason carefully to mark the correct option out of the options given below:
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