Chemistry Assertion And Reason.

(A): Inter molecular dehydration of alcohol is not a suitable method of prepare mixed ethers.
Reason (R): When a mixture of two different alcohols are used, mixture of different ethers are formed and they are difficult to separate.
(a) Both A and R are correct and R is the correct explanation of A.
(b) Both A and R are correct but R is not the correct explanation of A.
(c) A is correct but R is wrong
(d) A is wrong but R is correct

(A): O – nitro phenol is slightly soluble in water whereas P – nitro phenol is more soluble in water.
Reason (R): O – nitro phenol has intra molecular hydrogen bonding whereas P – nitro phenol has inter molecular hydrogen bonding.
(a) Both A and R are correct and R is the correct explanation of A.
(b) Both A and are wrong
(c) A is correct but R is wrong
(d) A is wiong but R is correct

(A): P – cresol is less acidic than phenol.
Reason (R): Alkyl substituted phenols show a decreased acidity due to the electron releasing + I effect of alkyl group.
(a) Both A and R are correct but R is not the correct explanation of A.
(b) Both A and R are correct and R is the correct explanation of A.
(c) Both A and R are wrong
(d) A is correct but R is wrong

(A): Primary alcohols are more acidic than tertiary alcohol.
Reason (R): Alkyl groups (electron releasing group) increases the electron density on oxygen and decreases the polar nature of – OH bond. Hence it results in the decrease in acidity.
(a) Both A and R are correct and R is the correct explanation of A.
(b) Both A and R are not correct
(c) A is correct but R is wrong
(d) A is wrong but R is correct

(A): The bond angle (C – O – H) in methanol is reduced to 108.9° from the regular tetra hedral bond angle of 109.5°.
Reason (R): In methanol, two lone pairs of electrons are present in oxygen atom and due to lone pair – lone pair repulsion, the bond angle is reduced.
(a) Both A and R are correct and R is the correct explanation of A.
(b) Both A and R are correct but R is not the correct explanation of A.
(c) A is correct but R is wrong
(d) A is wrong but R is correct

(A): Boiling point of ethanol is higher in comparison to methoxy methane.
Reason (R): Ethanol is associated with inter molecular hydroxide bonding whereas in methoxy methane, inter molecular hydrogen bonding is not present.
(a) Both A and R are correct and R is the correct explanation of A.
(b) Both A and R are correct but R is not the correct explanation of A.
(c) Both A and R are not correct
(d) A is correct but R is wrong

(A): Phenol is more acidic than ethanol.
Reason (R): Phenoxide ion is more stable than ethoxide due to resonance.
(a) Both A and R are correct and R is the correct explanation of A.
(b) Both A and R are correct but R is not the correct explanation of A.
(c) A is correct but R is wrong
(d) A is wrong but R is correct

(A): Phenol is more reactive towards electrophilic substitution reaction.
Reason (R): In the case of phenol, the intermediate carbo cations is more resonance stabilized.
(a) Both A and R are correct and R is the correct explanation of A.
(b) Both A and are wrong
(c) A is correct but R is wrong
(d) A is wrong but R is correct

(A): P-nitro phenol is a stronger acid than o – nitro phenol.
Reason (R): Intra molecular hydrogen bonding in o – nitro phenol make it as a weaker acid.
(a) Both A and R are correct and R is the correct explanation of A.
(b) Both A and are wrong
(c) A is correct but R is wrong
(d) A is wrong but R is correct

(A): Bond angle in ethers is slightly less than the tetra hedral angle.
Reason (R): There is a repulsion between the two bulkier R groups.
(a) Both A and R are correct but R is not the correct explanation of A.
(b) Both A and arc wrong
(c) Both A and R are correct and R is the correct explanation of A.
(d) A is correct but R is wrong

(A): Both alcohol and ether have higher boiling point.
Reason (R): Both are having intermolecular hydrogen bonding.
(a) Both A and R are correct and R is the correct explanation of A.
(b) Both A and R are wrong
(c) A is correct but R is wrong
(d) A is wrong but R is correct

(A): Ethanol is a weaker acid than Phenol.
Reason (R): Sodium ethoxidc may be prepared by the reaction of ethanol with sodium metal but phenol reacts with NaOH.
(a) Both A and R are correct and R ¡s the correct explanation of A
(b) Both A and R are correct but R is not the correct explanation of A
(c) A is correct but R is wrong
(d) A is wrong but R is correct

(A): Glycol is more viscous than ethanol.
Reason (R): Glycol contains two hydroxyl groups and the inter molecular hydrogen bonding is made much stronger resulting in a polymeric structure. This leads to high viscosity than ethanol.
(a) Both A and R are correct and R is the correct explanation of A.
(b) Both A and are correct but R is not the correct explanation of A.
(c) Both A and R are wrong
(d) A is correct but R is wrong

(A): Phenols are soluble in alcohols.
Reason (R): Phenols are soluble in alcohol due to the formation of inter molecular hydrogen bonding.
(a) Both A and R are correct and R is the correct explanation of A.
(b) Both A and R are wrong .
(c) A is correct but R is wrong
(d) A is wrong but R is correct

(A): Alcohols cannot be used as solvent for Grignard reagent.
Reason (R): Alcohols are decomposed by Grignard reagents to give alkane.
(a) Both A and R are correct and R is the correct explanation of A.
(b) A is correct but R is wrong
(c) A is wrong but R is correct
(d) Both A and R are correct but R is not correct explanation of A.