970 + Interview Questions in ALCOHOLS IN GENERAL AWARENESS Page 1 InterviewSolution

1.	The`-OH` group of Methyl alcohol cannot be replaced by chlorine by the the action ofA. Phosphorus trichlorideB. Hydrogen chlorideC. ChlorineD. Phoshphorus pentachloride
Answer» Correct Answer - C `CH_(3)OH +CI_(2) rarr` No reaction `CH_(3)OH +HCI overset(ZnCI_(2))rarr CH_(3)CI +H_(2)O` `3CH_(3)OH +PCI_(3) rarr 3CH_(3)CI +H_(3)PO_(3)` `CH_(3)OH +PCI_(5) rarr CH_(3)CI +POCI_(3) +HCI`

Discussion

2.	The -OH group of methyl alcohol cannot be replaced by chlorine by the action ofA. chlorineB. hydrogen chiorideC. phosphorus -trichlorideD. phosphorus pentachloride
Answer» Correct Answer - A

Discussion

3.	The`-OH` group of Methyl alcohol cannot be replaced by chlorine by the the action ofA. ChlorineB. Hydrogen chlorideC. Phosphoric trichlorideD. Phosphours pentachloride
Answer» Correct Answer - A `CH_(3)OH +CI rarr` No reaction `CH_(3)OH +HCI overset(ZnCI_(2))to CH_(3)CI +H_(2)O` `3CH_(3)OH +PCI_(3)rarr 3CH_(3)CI +H_(3)PO_(3)` `CH_(3)OH +PCI rarr CH_(3)CI +POCI_(3)+HCI`

Discussion

4.	The `-OH` group of an alcohol or of the `-COOH` group of a carboxylic acid can be replaced by `-Cl` usingA. phosphorus pentachlorideB. hypochlorus acidC. chlorineD. hydrochloric acid
Answer» Correct Answer - A The `-OH` group of alcohol or the `-COOH` group of a carboxylic acid is replaced by `-Cl` using phosphorus pentachloride (i.e., `PCl_(5)`) `underset("Alcohol")(ROH)+PCl_(5) rarr R Cl +POCl_(3)+HCl` `underset("Acid")(RCOOH)+PCl_(5)rarr RCOCl +POCl_(3)+HCl`

Discussion

5.	During sulphonation, conc. `H_2SO_4` is used forA. the introduction of `-SO_3H` group in benzeneB. the introduction of `-SO_4H` group in benzeneC. the introduction of `-SO_2H` group in benzeneD. all of these
Answer» Correct Answer - A

Discussion

6.	Which of the following compound will lose a molecule of water of treating with conc. `H_2SO_4`?A. `CH_3COCH_3`B. `CH_3COOH`C. `CH_3CH_2OH`D. `CH_3OCH_3`
Answer» Correct Answer - C

Discussion

7.	Which of the following is not dehydrating agent?A. `H_2SO_4`B. `H_3BO_3`C. `ThO_2`D. `NaBH_4`
Answer» Correct Answer - D

Discussion

8.	Which of the following can be used as dehydrating agent for alcohols ?A. `H_3PO_4`B. `H_2SO_4`C. `Al_2O_3`D. all of these
Answer» Correct Answer - D

Discussion

9.	What is the correct order of rectivity of alchohols in the following reaction ?A. `1^@ gt 2^@ gt 3^@`B. `1^@ lt 2^@ gt 3^@ `C. `3^@ gt 2^@ gt 1^@`D. `3^@ lt 2^@ lt 1^@`
Answer» Correct Answer - C

Discussion

10.	Write the name of the test by which methanol can be distinguished from ethanol.
Answer» Iodoform test by which methanol can be distinguished from ethanol.

Discussion

11.	Which one of the following alkyl halide gives best yield in Williamson's synthesis?(a) CH3 – Br(b) CH3 – CH(Br) – CH3(c) CH2 – CH(Br) – CH3 – CH3(d) (CH3)3C – Br
Answer» Option : (a) CH₃ – Br

Discussion

12.	Williamson's synthesis is used for the preparation of :(a) only unsymmetrical ethers (b) only symmetrical ethers (c) both symmetrical and unsymmetrical ethers (d) only methyl ethers
Answer» Option : (c) both symmetrical and unsymmetrical ethers

Discussion

13.	Give IUPAC names of the following ethers:1. \(\mathrm{C_2H_5OCH_2-\underset{\underset{CH_3}{\|}}{CH}-CH_3}\)2. CH3OCH2CH2Cl3. O2N-C6H4-OCH3(p) 4. CH3CH2CH2OCH3 5. 6.
Answer» 1. 1- Ethoxy - 2 - methyl propane 2. 2 - chloro -1 - methoxyethane 3. 4 - Nitroanisole 4. 1 - Methoxypropane 5. 1 - Ethoxy - 4,4 - dimethyl cyclohexane 6. Ethoxy benzene

13.

Give IUPAC names of the following ethers:1. \(\mathrm{C_2H_5OCH_2-\underset{\underset{CH_3}{|}}{CH}-CH_3}\)2. CH3OCH2CH2Cl3. O2N-C6H4-OCH3(p) 4. CH3CH2CH2OCH3 5. 6.

Answer»

1. 1- Ethoxy - 2 - methyl propane

2. 2 - chloro -1 - methoxyethane

3. 4 - Nitroanisole

4. 1 - Methoxypropane

5. 1 - Ethoxy - 4,4 - dimethyl cyclohexane

6. Ethoxy benzene

Discussion

14.	Write IUPAC names of the following compounds:(ix) \(CH_3 - O - CH_2-\underset{\underset{CH_3}{\|}}{CH}-CH_3\)(x) C6H5 - O - C2H5 (xi) C6H5 - O - C7H15 (xii) \(CH_3 -CH_2-O-\underset{\underset{CH_3}{\|}}{CH}-CH_2 -CH_3\)
Answer» (i) 2, 2,4 – Trimethyl pentan – 3 – ol (ii) 5 – Ethyl heptane – 2,4 – diol (iii) Butane – 2,3 – diol (iv) Propane – 1, 2, 3 – triol (v) 2 – Methyl phenol (vi) 4 – Methyl phenol (vii) 2,5 – Dimethyl phenol (viii) 2,6 – Dimethyl phenol (ix) 1 – Methoxy – 2 – Methyl propane (x) Ethoxy benzene (xi) 1 – Phenoxyheptane (xii) 2 – Ethoxy butane

Discussion

15.	Optical isomer of molcular formula `C_4H_10O` on `alpha`-elimination givesA. butanalB. 2-methyl propanalC. 2-butanoneD. 2-methyl propene
Answer» Correct Answer - C

Discussion

16.	An organic compound of molecular formula `C_4H_10O` does not react with sodium. With excess of HI, it gives only one type of alkyl halide. The compound isA. `C_2H_5 IOC_2 H_5 `B. `CH_3underset(OCH_3)underset(\|)CHCH_3`C. `CH_3CH_2CH_2OCH_2`D. `CH_3CH_2CH_2OH`
Answer» Correct Answer - A

Discussion

17.	`C_4H_10O+HI overset("Hot")to R_1 - I + R_2 -I ` `R_1-I` and `R_2-I` on alkaline hydrolysis gives alcohols A and B respectively . The compound A and B gives haloform test. The original compound isA. B. C. D.
Answer» Correct Answer - B

Discussion

18.	Molecular formula(A)`C_4H_10O` on acid hydrolysis gives two mole of same alcohol.The compound A isA. 2-methoxy propaneB. 1-methoxy propaneC. t-butyl alcoholD. Diethyl ether
Answer» Correct Answer - D

Discussion

19.	How many metamers are possible for molecular formula `C_4H_10O` ?A. 3B. 7C. 5D. 2
Answer» Correct Answer - A

Discussion

20.	How many metamers are possible for `C_4H_10O` ?A. 1B. 2C. 3D. 4
Answer» Correct Answer - C

Discussion

21.	The best reagent to covert pent-3-en-2-ol into pent-3-en-2-one is :A. acidic permanganateB. acidic dichromateC. chromic anhydride in glacial acetic acidD. pyridiniumchlorohromate
Answer» Correct Answer - D

Discussion

22.	The best reagent to convert pent-3-en-2-ol into pent-3-en-2-one isA. acidic permanganateB. acidic dichromateC. chromic anhydride in glacial acetic acidD. pyridinium chlorochromate.
Answer» Correct Answer - D Pyridinium chlorochromate oxidises an alcoholic group selectively in the presence of carbon-carbon double bond.

Discussion

23.	In the reaction given below, the product C is `CaC_(2)overset(H_(2)O)rarr A overset("Dil. "H_(2)SO_(4))underset(HgSO_(4))rarrBoverset(H_(2)//Ni)rarrC`A. `C_(2)H_(5)OH`B. `CH_(3)CHO`C. `CH_(3)OH`D. `CH_(3)COOH`
Answer» Correct Answer - A `CaC_(2)overset(H_(2)O)rarr CH-=CH overset("Dil "H_(2)SO_(4))underset(HgSO_(4))rarr CH_(3)CHO overset(H_(2)//Ni)rarr CH_(3)CH_(2)OH`

Discussion

24.	A compound that easily undergoes bromination isA. Benzoic acidB. TolueneC. BenzeneD. Phenol
Answer» Correct Answer - D A compound that undergoes bromination easily is phenol. Due to presence of `-OH` groups the ring becomes much more active in subsitutionreactions. The bromination occurs due to availability of electron on ortho and para positions.

Discussion

25.	Which of the following reactions represent the continuous etherification process?(a) R-ONa + R' - X →(b) R - OH \(\overset{H_2SO_4}{\longrightarrow}\)(c) R-OH+CH2N2 \(\overset{HBF_4}{\longrightarrow}\)(d) R-O-R' \(\overset{aq.H_2SO_4}{\longrightarrow}\)
Answer» Option : (b) R - OH \(\overset{H_2SO_4}{\longrightarrow}\)

Discussion

26.	Lucas test is done forA. alcoholsB. aminesC. diEthyl etherD. glacial acetic acid
Answer» Correct Answer - A Lucas test is used for the distinction of primary secondary and tertiary alcohols.

Discussion

27.	Preparation of ether from ethanol by continuous etherification process isA. `SN^1` reactionB. `SN^2` reactionC. `E^1` reactionD. `E^2` reaction
Answer» Correct Answer - B

Discussion

28.	The intermediate product obtained during continuous etherification process is,A. alkyl hydrogen sulphiteB. alkyl hydrogen sulphateC. alkyl sulphateD. alkyl sulphite
Answer» Correct Answer - B

Discussion

29.	In continuous etherification process `1^(st)` step isA. formation of carbocationB. protonation of alcoholC. loss of proton from oxocationD. cleavage of O-H bond in alcohol
Answer» Correct Answer - B

Discussion

30.	Continuous etherification process based uponA. oxidationB. intermolecular dehydrationC. intramolecular dehydrationD. reduction
Answer» Correct Answer - B

Discussion

31.	Carbolic acid is obtained from oxidation ofA. sodium salicylateB. salicylic acidC. tolueneD. cumene
Answer» Correct Answer - D

Discussion

32.	`CH_2N_2` and 2-propanol givesA. `(CH_3)_2CHOCH_3`B. `(CH_3)_2CHCOOH`C. `(CH_3)_2NCH_3`D. `(CH_3)_2CH-NH-CH_3`
Answer» Correct Answer - A

Discussion

33.	Conversion of alcohol to ether in the presence of conc. `H_2SO_4` is an example ofA. `SN^1` reactionB. `SN^2` reactionC. `E^1` reactionD. `E^2` reaction
Answer» Correct Answer - B

Discussion

34.	Which one of the following ether produces in higher yield by continuous etherification process ?A. `C_2H_5OCH_3`B. `C_2H_5OC_2H_5`C. `CH_3OCH(CH_3)_2`D. `C_2H_5OCH_2CH_2CH_3`
Answer» Correct Answer - B

Discussion

35.	Replacement of `N_2^+ X^-` can be done byA. `H_3O^+`B. aq. NaOHC. alc. KOHD. moist `Ag_2O`
Answer» Correct Answer - A

Discussion

36.	The reaction between alcohol and conc. `H_2SO_4` at 413 K givesA. diethyl etherB. isopropyl alcoholC. diethyl alcoholD. ethene
Answer» Correct Answer - A

Discussion

37.	Isobutyl n-butyl ether is reacted with cold conc. HI gives,A. `CH_3CH_2CH_2CH_2I+(CH_3)_2CHCH_2OH`B. `CH_3CH_2CH_2CH_2OH + (CH_3)_2CHCH_2I`C. `CH_3CH_2CH_2CH_2I + (CH_3)_2CHCH_2I`D. `CH_3CH_2CH_2CH_2OH + (CH_3)_2CHCH_2OH`
Answer» Correct Answer - B

Discussion

38.	Lower molecular weight optically active ether is reacted with cold HI givesA. butan-1-ol and iodomethaneB. butan-2-ol and iodomethaneC. propan-1-ol and iodoethaneD. propan-2-ol and iodoethane
Answer» Correct Answer - B

Discussion

39.	When ethyl isopropyl ether is reacted with HI in cold gives,A. `C_2H_5I` and `(CH_3)_2CHOH`B. `C_2H_5I` and `(CH_3)_2CHI`C. `C_2H_5OH` and `(CH_3)_2CHI`D. `C_2H_5OH` and `(CH_3)_2CHOH`
Answer» Correct Answer - A

Discussion

40.	When ethyl hydrogen sulphate in heated with ethanol at 413 K, the product formed isA. ethyneB. etheneC. diethyl etherD. diethyl sulphate
Answer» Correct Answer - C `CH_3CH_2OSO_2OH+ HOCH_2CH_3 to CH_3CH_2OCH_2CH_3+H_2SO_4`

Discussion

41.	The product obtained by heating diethyl ether with HI isA. `C_(2)H_(5)l`B. `C_(2)H_(5)OH`C. `C_(2)H_(5)OH+C_(2)H_(5)l`D. `C_(2)H_(5)-C_(2)H_(5)`
Answer» Correct Answer - C `C_(2)H_(5)-O-C_(2)H_(5)underset(100^(@)C)overset(HI)(rarr)C_(2)H_(5)-OH+C_(2)H_(5)-l`

Discussion

42.	HBr reacts with `H_(2)C=CH-OCH_(3)` under anhydrous conditions at room temperature to give:A. `CH_(3)CHO` and `CH_(3)Br`B. `BrCH_(2)CHO` and `CH_(3)OH`C. `BrCH_(2)-CH_(2)-OCH_(3)`D. `H_(3)C-CHBr-OCH_(3)`
Answer» Correct Answer - D `H_(3)C-CHBR-OCH_(3)`

Discussion

43.	The product obtained by heating diethyl ether with HI isA. `C_(2)H_(5)I`B. `C_(2)H_(5)OH`C. `C_(2)H_(5)OH+C_(2)H_(5)I`D. `C_(2)H_(5)-C_(2)H_(5)`
Answer» Correct Answer - C `C_(2)H_(5)OC_(2)H_(5)+HI rarr underset("Ethanol")(C_(2)H_(5)OH)+underset("Ethyl iodide")(C_(2)H_(5)I)`

Discussion

44.	The reaction `CH_3OC_2H_5` with cold HI givesA. `CH_3OH+C_2H_5I`B. `CH_3I+ C_2H_5OH`C. `CH_3I + C_2H_5I`D. `CH_3OH + C_2H_5OH`
Answer» Correct Answer - B `CH_3OC_2H_5+HI overset("cold")to CH_3I+C_2H_5OH` The nucleophile `I^-` attacks `-CH_3` group and not `-CH_2` group of ethyl group , because the positive charge on `-CH_2` is reduced by electron -donating effect of `-CH_3` in ethyl is more than on `-CH_2` of ethyl group .

Discussion

45.	Diethyl ether on heating with conc. HI gives two moles ofA. ethanolB. iodoformC. ethyl iodideD. methyl iodide.
Answer» Correct Answer - C `CH_3CH_2OCH_2CH_3+2HI to 2CH_3CH_2I + H_2O`

Discussion

46.	DiEthyl ether on heating with conc. `HI` gives two moles ofA. ethanolB. iodoformC. enthy`1` iodideD. Methyliodide
Answer» Correct Answer - C `C_(2)H_(5)OC_(2)H_(5)+2HI overset(Delta)rarr 2C_(2)H_(5)I +H_(2_O`

Discussion

47.	Identify (Z) int eh following reaction series `:` Etahanol `overset(PCl_(5))(rarr)(X)overset("Alc. KOH")(rarr)(Y) underset(H_(2)O,"heat") overset(H_(2)SO_(4),"r o om temp.)(rarr)(Z)`A. `H_(2)C=CH_(2)`B. `CH_(3)CH_(2)OH`C. `CH_(3)CH_(2)OSO_(3)H`D. `C_(2)H_(5)OC_(2)H_(5)`
Answer» Correct Answer - B

Discussion

48.	The compuond that does no liberate `CO_(2)` on treatment with aqueous sodium bicarbonate solution is `:`A. benzoic acidB. carbolic acid (phenol)C. salicylic acidD. benzene sulphonic acid
Answer» Correct Answer - B

Discussion

49.	State the uses of methyl alcohol.
Answer» (1) Methyl alcohol is used as an industrial solvent for dissolving oils, fats, gums, etc. (2) It is used for dry cleaning and preparation of perfumes and varnishes. (3) It is used as antifreeze agent for automobile radiators at low temperature. (4) It is used in the preparation of methyl chloride, dimethyl sulphate and formaldehyde. (5) It is used to denature ethyl alcohol.

49.

State the uses of methyl alcohol.

Answer»

(1) Methyl alcohol is used as an industrial solvent for dissolving oils, fats, gums, etc.

(2) It is used for dry cleaning and preparation of perfumes and varnishes.

(3) It is used as antifreeze agent for automobile radiators at low temperature.

(4) It is used in the preparation of methyl chloride, dimethyl sulphate and formaldehyde.

(5) It is used to denature ethyl alcohol.

Discussion

50.	One mole of sodium when reacts with one mole of methyl alcohol, gives :(a) one mole of oxygen (b) one mole of hydrogen (c) half mole of hydrogen (d) half mole of oxygen
Answer» Option : (c) half mole of hydrogen

Discussion

Explore topic-wise InterviewSolutions in .

The`-OH` group of Methyl alcohol cannot be replaced by chlorine by the the action ofA. Phosphorus trichlorideB. Hydrogen chlorideC. ChlorineD. Phoshphorus pentachloride

The -OH group of methyl alcohol cannot be replaced by chlorine by the action ofA. chlorineB. hydrogen chiorideC. phosphorus -trichlorideD. phosphorus pentachloride

The`-OH` group of Methyl alcohol cannot be replaced by chlorine by the the action ofA. ChlorineB. Hydrogen chlorideC. Phosphoric trichlorideD. Phosphours pentachloride

The `-OH` group of an alcohol or of the `-COOH` group of a carboxylic acid can be replaced by `-Cl` usingA. phosphorus pentachlorideB. hypochlorus acidC. chlorineD. hydrochloric acid

During sulphonation, conc. `H_2SO_4` is used forA. the introduction of `-SO_3H` group in benzeneB. the introduction of `-SO_4H` group in benzeneC. the introduction of `-SO_2H` group in benzeneD. all of these

Which of the following compound will lose a molecule of water of treating with conc. `H_2SO_4`?A. `CH_3COCH_3`B. `CH_3COOH`C. `CH_3CH_2OH`D. `CH_3OCH_3`

Which of the following is not dehydrating agent?A. `H_2SO_4`B. `H_3BO_3`C. `ThO_2`D. `NaBH_4`

Which of the following can be used as dehydrating agent for alcohols ?A. `H_3PO_4`B. `H_2SO_4`C. `Al_2O_3`D. all of these

What is the correct order of rectivity of alchohols in the following reaction ?A. `1^@ gt 2^@ gt 3^@`B. `1^@ lt 2^@ gt 3^@ `C. `3^@ gt 2^@ gt 1^@`D. `3^@ lt 2^@ lt 1^@`

Write the name of the test by which methanol can be distinguished from ethanol.

Which one of the following alkyl halide gives best yield in Williamson's synthesis?(a) CH3 – Br(b) CH3 – CH(Br) – CH3(c) CH2 – CH(Br) – CH3 – CH3(d) (CH3)3C – Br

Williamson's synthesis is used for the preparation of :(a) only unsymmetrical ethers (b) only symmetrical ethers (c) both symmetrical and unsymmetrical ethers (d) only methyl ethers

Give IUPAC names of the following ethers:1. \(\mathrm{C_2H_5OCH_2-\underset{\underset{CH_3}{|}}{CH}-CH_3}\)2. CH3OCH2CH2Cl3. O2N-C6H4-OCH3(p) 4. CH3CH2CH2OCH3 5. 6.

Write IUPAC names of the following compounds:(ix) \(CH_3 - O - CH_2-\underset{\underset{CH_3}{|}}{CH}-CH_3\)(x) C6H5 - O - C2H5 (xi) C6H5 - O - C7H15 (xii) \(CH_3 -CH_2-O-\underset{\underset{CH_3}{|}}{CH}-CH_2 -CH_3\)

Optical isomer of molcular formula `C_4H_10O` on `alpha`-elimination givesA. butanalB. 2-methyl propanalC. 2-butanoneD. 2-methyl propene

An organic compound of molecular formula `C_4H_10O` does not react with sodium. With excess of HI, it gives only one type of alkyl halide. The compound isA. `C_2H_5 IOC_2 H_5 `B. `CH_3underset(OCH_3)underset(|)CHCH_3`C. `CH_3CH_2CH_2OCH_2`D. `CH_3CH_2CH_2OH`

`C_4H_10O+HI overset("Hot")to R_1 - I + R_2 -I ` `R_1-I` and `R_2-I` on alkaline hydrolysis gives alcohols A and B respectively . The compound A and B gives haloform test. The original compound isA. B. C. D.

Molecular formula(A)`C_4H_10O` on acid hydrolysis gives two mole of same alcohol.The compound A isA. 2-methoxy propaneB. 1-methoxy propaneC. t-butyl alcoholD. Diethyl ether

How many metamers are possible for molecular formula `C_4H_10O` ?A. 3B. 7C. 5D. 2

How many metamers are possible for `C_4H_10O` ?A. 1B. 2C. 3D. 4

The best reagent to covert pent-3-en-2-ol into pent-3-en-2-one is :A. acidic permanganateB. acidic dichromateC. chromic anhydride in glacial acetic acidD. pyridiniumchlorohromate

The best reagent to convert pent-3-en-2-ol into pent-3-en-2-one isA. acidic permanganateB. acidic dichromateC. chromic anhydride in glacial acetic acidD. pyridinium chlorochromate.

In the reaction given below, the product C is `CaC_(2)overset(H_(2)O)rarr A overset("Dil. "H_(2)SO_(4))underset(HgSO_(4))rarrBoverset(H_(2)//Ni)rarrC`A. `C_(2)H_(5)OH`B. `CH_(3)CHO`C. `CH_(3)OH`D. `CH_(3)COOH`

A compound that easily undergoes bromination isA. Benzoic acidB. TolueneC. BenzeneD. Phenol

Which of the following reactions represent the continuous etherification process?(a) R-ONa + R' - X →(b) R - OH \(\overset{H_2SO_4}{\longrightarrow}\)(c) R-OH+CH2N2 \(\overset{HBF_4}{\longrightarrow}\)(d) R-O-R' \(\overset{aq.H_2SO_4}{\longrightarrow}\)

Lucas test is done forA. alcoholsB. aminesC. diEthyl etherD. glacial acetic acid

Preparation of ether from ethanol by continuous etherification process isA. `SN^1` reactionB. `SN^2` reactionC. `E^1` reactionD. `E^2` reaction

The intermediate product obtained during continuous etherification process is,A. alkyl hydrogen sulphiteB. alkyl hydrogen sulphateC. alkyl sulphateD. alkyl sulphite

In continuous etherification process `1^(st)` step isA. formation of carbocationB. protonation of alcoholC. loss of proton from oxocationD. cleavage of O-H bond in alcohol

Continuous etherification process based uponA. oxidationB. intermolecular dehydrationC. intramolecular dehydrationD. reduction

Carbolic acid is obtained from oxidation ofA. sodium salicylateB. salicylic acidC. tolueneD. cumene

`CH_2N_2` and 2-propanol givesA. `(CH_3)_2CHOCH_3`B. `(CH_3)_2CHCOOH`C. `(CH_3)_2NCH_3`D. `(CH_3)_2CH-NH-CH_3`

Conversion of alcohol to ether in the presence of conc. `H_2SO_4` is an example ofA. `SN^1` reactionB. `SN^2` reactionC. `E^1` reactionD. `E^2` reaction

Which one of the following ether produces in higher yield by continuous etherification process ?A. `C_2H_5OCH_3`B. `C_2H_5OC_2H_5`C. `CH_3OCH(CH_3)_2`D. `C_2H_5OCH_2CH_2CH_3`

Replacement of `N_2^+ X^-` can be done byA. `H_3O^+`B. aq. NaOHC. alc. KOHD. moist `Ag_2O`

The reaction between alcohol and conc. `H_2SO_4` at 413 K givesA. diethyl etherB. isopropyl alcoholC. diethyl alcoholD. ethene

Isobutyl n-butyl ether is reacted with cold conc. HI gives,A. `CH_3CH_2CH_2CH_2I+(CH_3)_2CHCH_2OH`B. `CH_3CH_2CH_2CH_2OH + (CH_3)_2CHCH_2I`C. `CH_3CH_2CH_2CH_2I + (CH_3)_2CHCH_2I`D. `CH_3CH_2CH_2CH_2OH + (CH_3)_2CHCH_2OH`

Lower molecular weight optically active ether is reacted with cold HI givesA. butan-1-ol and iodomethaneB. butan-2-ol and iodomethaneC. propan-1-ol and iodoethaneD. propan-2-ol and iodoethane

When ethyl isopropyl ether is reacted with HI in cold gives,A. `C_2H_5I` and `(CH_3)_2CHOH`B. `C_2H_5I` and `(CH_3)_2CHI`C. `C_2H_5OH` and `(CH_3)_2CHI`D. `C_2H_5OH` and `(CH_3)_2CHOH`

When ethyl hydrogen sulphate in heated with ethanol at 413 K, the product formed isA. ethyneB. etheneC. diethyl etherD. diethyl sulphate

The product obtained by heating diethyl ether with HI isA. `C_(2)H_(5)l`B. `C_(2)H_(5)OH`C. `C_(2)H_(5)OH+C_(2)H_(5)l`D. `C_(2)H_(5)-C_(2)H_(5)`

HBr reacts with `H_(2)C=CH-OCH_(3)` under anhydrous conditions at room temperature to give:A. `CH_(3)CHO` and `CH_(3)Br`B. `BrCH_(2)CHO` and `CH_(3)OH`C. `BrCH_(2)-CH_(2)-OCH_(3)`D. `H_(3)C-CHBr-OCH_(3)`

The product obtained by heating diethyl ether with HI isA. `C_(2)H_(5)I`B. `C_(2)H_(5)OH`C. `C_(2)H_(5)OH+C_(2)H_(5)I`D. `C_(2)H_(5)-C_(2)H_(5)`

The reaction `CH_3OC_2H_5` with cold HI givesA. `CH_3OH+C_2H_5I`B. `CH_3I+ C_2H_5OH`C. `CH_3I + C_2H_5I`D. `CH_3OH + C_2H_5OH`

Diethyl ether on heating with conc. HI gives two moles ofA. ethanolB. iodoformC. ethyl iodideD. methyl iodide.

DiEthyl ether on heating with conc. `HI` gives two moles ofA. ethanolB. iodoformC. enthy`1` iodideD. Methyliodide

Identify (Z) int eh following reaction series `:` Etahanol `overset(PCl_(5))(rarr)(X)overset("Alc. KOH")(rarr)(Y) underset(H_(2)O,"heat") overset(H_(2)SO_(4),"r o om temp.)(rarr)(Z)`A. `H_(2)C=CH_(2)`B. `CH_(3)CH_(2)OH`C. `CH_(3)CH_(2)OSO_(3)H`D. `C_(2)H_(5)OC_(2)H_(5)`

The compuond that does no liberate `CO_(2)` on treatment with aqueous sodium bicarbonate solution is `:`A. benzoic acidB. carbolic acid (phenol)C. salicylic acidD. benzene sulphonic acid

State the uses of methyl alcohol.

One mole of sodium when reacts with one mole of methyl alcohol, gives :(a) one mole of oxygen (b) one mole of hydrogen (c) half mole of hydrogen (d) half mole of oxygen