Nitrobenzene on treatment with zinc dust and aqueous ammonium chloride gives
C6H5N =N-C6H5
C6H5NH2
C6H5NO
C6H5NHOH.
Methyl--glucoside and methyl--D-glucoside are
epimers
anomers
enantiomers
conformational diastereomers.
Which ofthe following compounds has the highest boiling point?
CH3CH2CH2Cl
CH3CH2CH2CH2Cl
CH3CH(CH3)CH2Cl
(CH3)3CCl
B.
CH3CH2CH2CH2Cl
For the same halogen, boiling point of alkyl halide decreases as the size of the alkyl group decreases. For isomeric alkyl halides, boiling point decreases as branching increases. So the decreasing order of boiling point is
CH3CH2CH2CH2Cl > CH3CH2CH2Cl > CH3CH(CH3)CH2Cl> (CH3)3CCl.
The correct increasing order of the reactivity of halides for SN 1 reaction is
CH3- CH2- X<(CH3)2CH= X <CH2= CH-CH2- X< PhCH2- X
(CH3)2CH-X <CH3-CH2- X < CH2= CH - CH2-X < PhCH2-X
PhCH2- X<(CH3)2CH=X<CH3-CH2-X<CH2= CH- CH2- X
CH2= CH - CH2- X < Ph- CH2- X <(CH3)2CH-X <CH3-CH2- X
Assertion : In the iodometric titration starch is used as an indicator.
Reason : Starch is a polysaccharide.
If both assertion and reason are true and reason is the correct explanation of the assertion.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
If assertion is true, but reason is false.
Both assertion and reason are false statements.
Assertion: Anilinium chloride is more acidic than ammonium chloride.
Reason : Anilinium ion is resonance-stabilised.
If both assertion and reason are true and reason is the correct explanation of the assertion.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
If assertion is true, but reason is false.
Both assertion and reason are false statements.
Assertion : 1,3-butadiene is the monomer for natural rubber.
Reason : Natural rubber is formed through anionic addition polymerization.
If both assertion and reason are true and reason is the correct explanation of the assertion.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
If assertion is true, but reason is false.
Both assertion and reason are false statements