Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

Ethyl amine reacts with nitrous acid to form :

Answer»

`C_(2)H_(5)OH`
`C_(2)H_(5)OH, N_(2), H_(2)O`
`C_(2)H_(5)N_(2)^(+)Cl^(-)`
`C_(2)H_(5)NHOH, NH_(3)`.

Answer :B
Discussion
2.

Ethyl amine reacts with HNO_2 to form

Answer»

`C_2H_5OH`
ETHYL NITRATE
`CH_3OH`
ETHANE

ANSWER :A
Discussion
3.

Ethyl amine on heating with CS_(2) in presence of HgCl_(2) forms

Answer»

`C_(2)H_(5)NCS`
`(C_(2)H_(5))_(2)S`
`(C_(2)H_(5))_(2)CS`
`C_(2)H_(5)(CS)_(2)`

SOLUTION :`C_(2)H_(5)NH_(2)+CS_(2)+HgCl_(2)rarrC_(2)H_(5)NCS+2HCl+HgS`.
Discussion
4.

Ethylamine can be prepared by the action of bromine and caustic potash on :

Answer»

Acetamide
Propionamide
Formamide
Methy cyanide.

Solution :`CH_(3)CH_(2)CONH_(2)CONH_(2)overset(Br_(2))UNDERSET(KOH)rarr CH_(3)CH_(2)NH_(2)`
Discussion
5.

Ethyl aminereactswithexcess of methyl iodineto give

Answer»

ETHYL METHYL amine
ethyl DIMETHYLAMINE
ethyl trimethyl ammoniumiodie
all of these

Answer :D
Discussion
6.

Ethyl amine on acetylation gives :

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ACETAMIDE
METHYL acetamide
N-ethyl acetamide
None

Answer :C
Discussion
7.

Ethyl amineis obtainedby theactionof sodiumhypobromiteof the followingamide .

Answer»

FORMAMIDE
propanamide
ACETAMIDE
BUTANAMIDE

ANSWER :B
Discussion
8.

Ethyl amine can be obtained from methyl iorude by reaction with alcoholic KCN followed by

Answer»

hydrolysis
reduction
oxidation
reaction with ammonia.

Solution :`CH_(3)Ioverset(KCN)underset(-KI)(rarr)CH_(3)CNoverset("reduction")(rarr)underset("ETHYL amine")(CH_(3)CH_(2)NH_(2))`
Discussion
9.

Write the relavant chemical equations : Ethyl alcohol to ethyl fluoride

Answer»

Solution :`C_(2)H_(5)OH OVERSET(PCl_(5))rarr C_(2)H_(5)Cl underset("acetone")overset(AGF)rarr C_(2)H_(5)F`
Discussion
10.

Ethylamineand dimethylamineare

Answer»

METAMERS
positionisomer
chainisomers
function isomers

Answer :D
Discussion
11.

Ethyl amine can be distingished from aniline by

Answer»

Tollens's REGENT
Schiff's reagent
AZODYE TEST
CARBYLAMINE test

ANSWER :C
Discussion
12.

Ethyl alcohol reacts with following to from a compound of fruity smell:

Answer»

`PCl_5`
`K_2Cr_2O7 +H_2SO_4`
`CH_3COOH`
`CH_3COCH_3`

ANSWER :C
Discussion
13.

Ethyl alcohol on oxidation with K_2Cr_2O_7 gives

Answer»

ACETIC acid
acetaldehyde
formaldehyde
formic acid

Answer :A
Discussion
14.

Ethyl alcohol reacts wih HCI but not with HCN because :

Answer»

`C_2H_5OH` is weak base and HCN is weak base
`C_2H_5OH` is strong ACID and `HCN` is weak acid
HCI is strong acid and `C_2H_5OH` is weak base
None

Answer :C
Discussion
15.

Ethyl alcohol on heating with HI yield

Answer»

ETHANE
ETHYLENE
methane
ethyl IODIDE

ANSWER :D
Discussion
16.

Ethyl alcohol on fermentation with acetobacilli in presence of air gives :

Answer»

`CH_2=CH_2`
`C_2H_2`
`CH_3CHO`
`CH_3COOH`

ANSWER :D
Discussion
17.

Ethyl alcohol is used as a preservative for chloroform because it :

Answer»

Prevents aerial oxidation of chloroform
Prevents decomposition of chloroform
Decomposes phosgene to CO and `Cl_2`
REMOVES phosgene by converting it to ETHYL carbonate

Solution : `CHCl_3`on exposure to air forms phosgene which is POISONOUS gas and removed by converting it into DIETHYL carbonate (which is non-poisonous substance).
`CHCl_3overset(O_2//light)rarrunderset(("Phosgene Poisonous"))(COCl_2)+HCl`
`underset(("Diethyl carbonate non-poisonous"))(COCl_2+2C_2H_5OH)rarr(C_2H_5)_2CO_3+2HCl`
Discussion
18.

Ethyl alcohol is reacted with acetyl chloride gives

Answer»

ETHYL acetate
ethyl formate
ethyl propanoate
ethyl METHYL ketone

Answer :A
Discussion
19.

Ethyl alcohol is oxidised to __________ when warmed with acidified K_2Cr_2O_7 solution .

Answer»

SOLUTION :ACETALDEHYDE
Discussion
20.

Ethyl alcohol is obtained when ethyl chloride is boiled with :

Answer»

ALCOHOLIC potasssium HYDROXIDE
Aqueous POTASSIUM hydroxide
`AlCl_3`
HYDROGNE peroxide

Answer :B
Discussion
21.

Ethyl alcohol is industrially prepared from ethylene by:

Answer»

permanganateoxidation
CATALYTIC reduction
ABSORBING in `H_2SO_4` followed by hydrolysis
FERMENTATION

Answer :C
Discussion
22.

Ethyl alcohol is industrially prepared form the ethylene by :

Answer»

PERMANGANATE oxidation
Catalytic reduction
Absorbing in SULPHURIC ACID FOLLOWED by hydrolysis
Fermentation

Answer :C
Discussion
23.

Ethyl alcohol is heated with SOCl_2 gives,

Answer»

`C_2H_5Cl + HCL`
`C_2H_5Cl + SO_2`
`C_2H_5Cl + HCl + SO_2`
`CH_3OH + CH_3Cl + SO_2`

SOLUTION :`C_2H_5OH + SOCl_2 OVERSET"PYRIDINE"to C_2H_5Cl+ HCl + SO_2`
Discussion
24.

Write the products formed when ethyl alcohol is heated with conc. H_2SO_4 at different temperature.

Answer»

`CH_3COOC_2H_5`
`CH_3 - CH_3`
`CH_3 = CH_2`
`CH -= CH`

ANSWER :C
Discussion
25.

Ethyl alcohol is denatured by :

Answer»

METHANOL and FORMIC acid
KCN
`CH_3OH` and`C_6H_6`
`CH_3OH` and pyridine

Answer :D
Discussion
26.

Ethyl alcohol is also known as :

Answer»

SPIRIT of wine
Methyl carbinol
Grain alcohol
All are correct

Answer :D
Discussion
27.

Ethyl alcohol forms X CaCl_(2)^(3). C_(2)H_(5)OH when C_(2)H_(5)OH reacts with respective anhydrous salts. Then

Answer»

`X = 3, Y = 3, Z = 2`
`X = 3, Y = 6, Z = 3`
`X = 3, Y = 7, Z = 4`
`X = 4, Y = 4, Z = 4`

ANSWER :B
Discussion
28.

Ethyl alcohol forms CaCl_(2). XC_(2)H_(5)OH , MgCl_(2), YC_(2)H_(5)OH and CuSO_(4). ZC_(2)H_(5)OH when C_(2)H_(5)OH reacts with respective anhydrous salts. Then

Answer»

X = 3, Y = 3, Z = 6
X = 3, Y = 6, Z = 3
X = 3, Y = 7, Z = 4
X = 4, Y = 4, Z = 4

Answer :B
Discussion
29.

Ethyl alcohol gives ethyl chloride on treatment with:

Answer»

NACL
`Socl_2`
`Cl_2`
KCl

Answer :B
Discussion
30.

Ethyl alcohol cannot be used as a solvent for methyl magnesium iodide because

Answer»

METHYL MAGNESIUM iodide REACT with alcohol givingmethane
The reaction between them is explosive in nature
Methyl magnesium iodide is converted to ethyl magnesium iodide
Alcohol is IMMISCIBLE with methyl magnesium iodide

Solution :Methyl magnesium iodide reacts with ethanol to GIVE methane.
Discussion
31.

Ethyl alcohol can be distinguished from phenol by

Answer»

ACTION of HCI
Action of ammonia
Action of AQ, `FeCl_(3)` solution
Action of acetic acid

Answer :C
Discussion
32.

Ethyl alcohol can be prepared from grignard reagent by the reaction of?

Answer»

`HCHO`
`R_(2)CO`
`RCN`
`RCOCL`

Answer :A
Discussion
33.

Ethyl alcohol acts as nucleophile when it reacts with

Answer»

CONC. `HCl//ZnCl_2`
` PCl_3`
Conc . `H_2SO_4`
` CH_3 COOH H//H ^(+) `

ANSWER :D
Discussion
34.

Ethyl alcohol.

Answer»

Solution :(1) Ethyl alcohol is used as solvent for dyes, oils perfuomes, consmetics and DRUGS.
(2) A mixture of 10-20% ethyl alcohol with petrol is used as motor fuel.
(3) A mixture of ethyl alcohol and CALCIUM acetate in GEL form is used as solied fuel.
It is widely used in beverages.
(5) Since ethyl alcohol has law freezing point it is used in thermometer.
(6) It is an effective trpical antiseptic therefore it is used in many mouth washes.
(7) It kills micro-organisms on wound surface and in the mouth but its low toxicity does not kills the CELLS of the skin or mouth tissues.
(8) It is used in the preparation of chloroform, iododrom, ACETIC acid and ethers.
(9) It is used as fuel.
Discussion
35.

Ethyl acetoacetate shows, which type of isomerism

Answer»

Chain
Optical
Metamerism
Tautomerism

Solution :`CH_(3)COOC_(2)H_(5)` shows tautomeric isomerism.
`CH_(3)-OVERSET(O)overset(||)(C)-underset("KETO")(O)-CH_(2)-CH_(3)HARR CH_(2)=underset("Enol")(overset(OH)overset(|)(C)-OC_(2)H_(5))`
Discussion
36.

Ethyl acetate reacts with NH_(3) to give:

Answer»

Ethylamine
Acetic acid
ACETAMIDE
Imides.

Solution :`CH_(3)COOC_(2)H_(5)+NH_(3)tounderset("Acetamide""")(CH_(3)CONH_(2)+C_(2)H_(5)OH`
Discussion
37.

Ethyl acetate undergoes self condensation in the presence of strong base to give .....

Answer»

Ethyl ACETO ACETATE + Ethanol
Ethyl aceto acetate + Acetic acid
Ethyl aceto PROPIONATE + propanol
Ethyl ethanoate + Ethanoic acid

Solution :Ethyl aceto acetate + Ethanol
Discussion
38.

Ethyl acetate treated with Na/EtOH gives

Answer»

`CH_(3)CO O Na`
`CH_(3)COC_(2)H_(5)`
`CH_(3)COCH_(2)CO OC_(2)H_(5)`
`C_(2)H_(5)OC_(2)H_(5)`

ANSWER :C
Discussion
39.

Ethyl acetate is treated with double the molar quantity of C_2H_5MgBr and the reaction mixure is hydrolysed with water. The product is :

Answer»

`C_2H_5OH`
`(C_2H_5)_2CHOH`

`CH_3COOC_2H_5`

ANSWER :C
Discussion
40.

"Ethyl acetate" overset("excess" CH_(3)MgBr.)to P. What is P?

Answer»




ANSWER :A
Discussion
41.

Ethyl acetate is reduced by di -isobutyl aluminium hydride gives

Answer»




ANSWER :A
Discussion
42.

Ethyl acetate is hydrolysed with water to acetic acid and ethyl alcohol. Which component has the order 1?

Answer»

SOLUTION :ETHYL ACETATE
Discussion
43.

Ethyl acaetate undragoes the followinfg sequence of reactions treatment with excess phenylmagnesium bromide in ether heating with cono.H_(3)PO_(4) treatment B_(2)H_(6) in ether, followed by alkaline H_(2)O_(2) treatment with jones' regent (CrO_(3)"in aqueous acid" +"acetone")

Answer»




ANSWER :A
Discussion
44.

Ethyl acetate can be prepared by .

Answer»

reaction of ethyl alcohol withaceticacid in PRESENCEOF dryHCl gas .
TREATMENTOF acetaldehydewith `Al (OC_(2)H_(5))_(3)` .
reaction ofacetyl chloridewith ethyl alcohol
reactionof aceticanhydridewithethyl alcohol

Solution : N/A
Discussion
45.

Ethoxy ethane is obtained by the reaction between 2 mole of ethanol with conc. H_(2)SO(4), at 413 K temp. This reaction is known as ........

Answer»

WILLIAMSON's synthesis
CONTINUOUS etherification
Grignand reaction
None of these

Solution :Continuous etherification
Discussion
46.

Ethoxyethane (b. pt. 35^@C) is more volatile than ethanol (b.pt. 78^@C) because of :

Answer»

The GREATER relative molecular mass of the ether
The strong C-O bonds in ether
The highly POLAR -OH GROUP in ETHANOL and strong H-bonding
The different SHAPES of the molecules

Answer :C
Discussion
47.

Ethly amine can be prepared by the action of Br_2 andNaOH on :

Answer»

ACETAMIDE
PROPIONAMIDE
Methylamine
Methyl CYANIDE

ANSWER :B
Discussion
48.

Ethlene dichloride and ethylidene chloride are isomeric compounds. Identify the statements.

Answer»

They react with alcoholic KOH.
They are dihalides.
They with AQ. KOH and give the same PRODUCT.
They RESPOND to Beistein's test.

ANSWER :A::B::D
Discussion
49.

Ethers with conc. HI at low temperature form

Answer»

ALKYL IODIDE
alcohol
Both a and b
oxonium salt

Answer :C
Discussion
50.

Ethers which is liquid at room temperature is

Answer»

`C_2H_5OCH_3`
`CH_3OCH_(3)`
`C_2H_5OCH_2H_5`
NONE

SOLUTION :`CH_3CH_2-O-CH_3` and `CH_3CH_2-O-CH_3` are GAES are `C_2H_5OC_2H_5` is LIQUID.
Discussion