If both assertion and reason are true and the reason is the correct explanation of the assertion. [a] It is fact that aniline is better nucleophile than anilium ion. Anilium ion contain +ve charge, which reduces the tendency to donate lone pair of electron\[\underset{\text{Anilium ion}}{\mathop{{{C}_{6}}{{H}_{5}}NH_{3}^{+}}}\,\]. Therefore, both assertion and reason are true. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. [b] Neopentane is isomer of pentane and neopentane forms only one substitution product. Both assertion and reason are true but reason is not a correct explaination of assertion. Neopentane forms mono substituted product due to presence of four identical methyl groups present on carbon atom. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. doneclear
C)
If assertion is true but reason is false. [c] The assertion that trans-2 butene reacts with \[B{{r}_{2}}\] to product meso-2, 3-dibromobutane is correct but it does not involve syn-addition of \[B{{r}_{2}}\]. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. [d] Here both assertion and reason are incorrect because cis-1, 3-dihydroxy cyclohexane exist in chair conformation and in chair conformation hydrogen bonding is present. doneclear
E)
If assertion is false but reason is true. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. [a] Hydroxy ketones are not directly used in Grignard reagent. Grignard reagents are very reactive. Therefore, they react with hydroxyl group. Here both are correct. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. [a] The assertion that on keeping benzyl bromide in acetone water it produces benzyl alcohol is correct. Because \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}Br\] hydrolysed to produce \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}OH\]. This conversion is of \[S{{N}^{2}}\] mechanism. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. [b] Catenation property of carbon is primarily due to its small size. Electronic configuration and unique strength of carbon-carbon bonds. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. [e] Olefins are unsaturated hydrocarbons containing two hydrogen atoms less than the corresponding paraffin i.e. there is one double bond between two carbon atoms in their molecules and they have the general formula \[{{C}_{n}}{{H}_{2n}}\]. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. [b] Less reactivity of saturated hydrocarbons are due to presence of single bonds between carbon atoms. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. [a] An alkyl group attached to the positively charged carbon of a carbonium ion tends to release electrons towards that carbon; thus the positive charges gets dispersed as the alkyl group becomes somewhat positively charged itself. More the number of alkyl groups, the greater is the dispersal of positive charge and therefore more easily it will be formed. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. [b] Heterolytic fission occurs when the two atoms differ considerably in their electronegativities and shared pair of electrons is carried by more electronegative atom. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. [d] The order of reactivity of carbonium ions is \[1{}^\circ >2{}^\circ >3{}^\circ \]. Carbon atom in carbonium ion is in \[s{{p}^{2}}\] state of hybridisation. The three hybridized orbitals lie in the same plane and are involved in the formation of three s bonds with three atoms or groups while the unhybridised p-orbital remains vacant. doneclear
E)
If assertion is false but reason is true. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. [b] Since free radicals contain odd electrons, so they are short lived and they readily try to pair up the odd electrons to form neutral molecules, that is why they are highly reactive. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. [b] Each carbon atom in ethylene is attached to two hydrogen atoms by single covalent bonds and to another carbon atoms by a double bond. Since each carbon is attached to three other atoms, it uses \[s{{p}^{2}}\] hybrid orbitals and an unhybridised \[{{p}_{Z}}\] orbital to form its bond. Each \[C-H\] bond is a \[\sigma \] bond resulting from the overlap of \[1s\] orbital of hydrogen atom and \[s{{p}^{2}}\] orbital of a carbon atom. One \[C-C\] bond results from the linear overlap of \[s{{p}^{2}}\] orbitals one from each carbon atom. One \[\pi \]bond results from the lateral overlap of two unhybridised \[{{p}_{Z}}\] orbitals, one from each carbon atom. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. [a] In cyclohexanone keto enol tautomerism is as follows doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. [e] The staggered form is more stable than the eclipsed form because the potential energy of staggered form in which the bond pairs of two carbons are far away from each other is minimum. Also the H-atoms are as far apart as possible and non-bonded interaction between them is maximum. In occupied form, the H-atom are very close and so the increased overlap between them non-bonded orbitals is repulsive. That is why staggered form is more stable than eclipsed form. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. [b] Trans isomer is more stable than cis isomer because in cis isomer, the bulky groups are on the same side of the double bond. The steric repulsion of the groups makes the cis isomer less stable than the trans isomer in which the bulky groups are far apart. (They are on the opposite side of the double bond). doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. [e] 1, 2-propadiene is not optically active because the terminal \[s{{p}^{2}}\]-hybridised carbons have the same atoms i.e. H-atoms. As a result, it has a plane of symmetry passing through the three carbon atoms and hence the molecule is optically inactive. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. [b] Lactic acid is a chiral molecule because it has a chiral carbon atom or asymmetric carbon atom and is therefore optically active. doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. doneclear
If both assertion and reason are true and the reason is the correct explanation of the assertion. doneclear
B)
If both assertion and reason are true but reason is not the correct explanation of the assertion. [b] \[CO_{3}^{2-}\] shows resonance and thus all the three bonds are of identical bond length. \[O\underset{\,\,{{O}_{-}}}{\mathop{\underset{|}{\mathop{=C-}}\,}}\,{{O}^{-}}\leftrightarrow {{O}^{-}}\underset{\,{{O}_{-}}}{\mathop{\underset{|}{\mathop{-C=}}\,}}\,O\leftrightarrow {{O}^{-}}-\underset{O}{\mathop{\underset{||}{\mathop{C}}\,}}\,-{{O}^{-}}\] doneclear
C)
If assertion is true but reason is false. doneclear
D)
If the assertion and reason both are false. doneclear
E)
If assertion is false but reason is true. doneclear