Q.1.
The correct order of solubility of 1°, 2° and 3° alcohol in water is ... ....
-
42%
a) 3° > 2° > 1°
-
58%
b) 1° > 2° > 3°
-
0%
c) 3° > 1° > 2°
-
0%
d) none of these
Q.2.
Vapour of an alcohol were passed over hot reduced copper. It gave an olefin. The alcohol is ....
-
18%
a) 1°
-
27%
b) 2°
-
45%
c) 3°
-
9%
d) none of these
Q.3.
onMore Than One Correct Answer Q394) The reaction is believed to occur through the formation of
-
12%
a)
-
25%
b)
-
62%
c)
-
0%
d) none of the above
Q.4.
In the reduction reaction of following reaction the catalyst used is R - CHO + H2 → RCH2OH
-
12%
a) Ni
-
12%
b) Pd
-
25%
c) Pt
-
50%
d) all of these
Q.5.
The following substance can be used as a raw material for obtaining alcohol
-
25%
a) maize
-
25%
b) molasses
-
12%
c) potato
-
38%
d) all of these
Q.6.
Absolute alcohol contains .... .....
-
38%
a) 100% C2H5OH
-
0%
b) 5% H2O
-
50%
c) 10% H2O
-
12%
d) 40% H2O
Q.7.
Assertion: A small amount of ethanol is added to CHCl3 bottles Reason: It acts as negative catalyst for the oxidation of CHCl3 to COCl2
-
43%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
-
29%
b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
-
14%
c) Assertion is true but, Reason is false
-
14%
d) Assertion is false but, Reason is true
Q.8.
An organic compound A reacts with sodium metal and forms B. On heating with conc. H2SOA give diethyl ether. So A and B are ... ....
-
0%
a) CH3OH and CH3Ona
-
86%
b) C2H5OH and C2H5ONa
-
0%
c) C3H7OH and CH3Ona
-
14%
d) C4H9OH and C4H9ONa
Q.9.
Assertion: Alcohols cannot be dried by CaCl2 Reason:CaCl2 forms solvated molecules with alcohol
-
33%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
-
67%
b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
-
0%
c) Assertion is true but, Reason is false
-
0%
d) Assertion is false but, Reason is true
Q.10.
The b.p. of alcohols are .... than corresponding thiols
-
29%
a) more
-
43%
b) less
-
14%
c) same
-
14%
d) either of these
Q.11.
Assertion:Methanol is stronger acid than water Reason:All alcohols are stronger acid than water
-
0%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
-
71%
b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
-
14%
c) Assertion is true but, Reason is false
-
14%
d) Assertion is false but, Reason is true
Q.12.
Ether fire can be extinguished by .... ....
-
0%
a) sand
-
0%
b) pyrene
-
33%
c) CO2
-
67%
d) all of these
Q.13.
Alcohols are neutral in character where thio-alcohols are ... ... in character.
-
29%
a) weakly acidic
-
14%
b) strongly acidic
-
14%
c) basic
-
43%
d) neutral
Q.14.
The number of isomeric alcohol of formula C4H10O is ... ...
-
20%
a) 2
-
40%
b) 3
-
0%
c) 4
-
40%
d) 5
Q.15.
RCH2CH2OH can be converted to RCH2CH2COOH by the following sequence of steps
-
20%
a) HCN, PBr3, H3O+
-
40%
b) PBr3,KCN, H3O+
-
40%
c) KCN, H3O+
-
0%
d) PBr3,KCN, H2/Pt
Explanation
Q.16.
Na reacts rapidly with
-
43%
a) primary alcohol
-
14%
b) secondary alcohol
-
43%
c) tertiary alcohol
-
0%
d) none of these
Q.17.
Dunstan's test is used for identification of ... ...
-
33%
a) Carbonyl compound
-
0%
b) alcohol
-
0%
c) acetone
-
67%
d) glycerol
Q.18.
When C2H5OH is mixed with ammonia and passed over heated alumina, the compound formed is .... .....
-
0%
a) CH3OCH3
-
67%
b) C2H5NH2
-
0%
c) C2H4
-
33%
d) CH3OCH3
Q.19.
Assertion:Acid catalysed dehydration of t-butanol is faster than n-butanol Reason: The order of stability of carbocation is 3° > 2° > 1°
-
43%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
-
14%
b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
-
29%
c) Assertion is true but, Reason is false
-
14%
d) Assertion is false but, Reason is true
Q.20.
Lubricant used in watch is .... .....
-
14%
a) coconut oil
-
14%
b) pine oil
-
29%
c) animal oil
-
43%
d) glycerol
Q.21.
Diethyl ether on treatment with Cl2 in presence of sunlight gives
-
50%
a) 1,1-dichlorodiethyl ether
-
0%
b) perchlorodiethyl ether
-
33%
c) trichlorodiethyl ether
-
17%
d) trichloroacetaldehyde
Q.22.
In the presence of an acid catalyst, two alcohol molecules, will undergo dehydration to give.... .....
-
0%
a) ether
-
20%
b) anhydride
-
40%
c) unsaturated hydrocarbon
-
40%
d) ether
Q.23.
Peppermint can be extracted from plant sources by using solvents like .... ....
-
25%
a) H2O
-
0%
b) CH3COOH
-
0%
c) NH3
-
75%
d) C2H5OH
Q.24.
Ethers are quite stable towards ...
-
20%
a) oxidizing and reducing agent
-
20%
b) Na metal
-
40%
c) base
-
20%
d) all of these
Q.25.
Glycerol on oxidation with conc. HNO3 mainly yields ....
-
0%
a) tartonic acid
-
20%
b) glyceric acid
-
0%
c) mesoxalic acid
-
80%
d) both (a) and (b)
Explanation
Q.26.
Ethers are not distilled to dryness for fear of explosion. This is due to formation of .... ...
-
40%
a) alcohol
-
20%
b) oxides
-
0%
c) ketones
-
40%
d) peroxides
Q.27.
han One Correct Answer Q418) Chromic anhydride in H2SO4 is turned blue by
-
20%
a) 1° alcohol
-
60%
b) 2° alcohol
-
20%
c) 3° alcohol
-
0%
d)
Q.28.
To prepare 2-propanol from CH3MgI, the other chemical required is .... ......
-
0%
a) CO2
-
0%
b) C2H5OH
-
40%
c) CH3CHO
-
60%
d) HCHO
Explanation
Q.29.
Ether are made free from peroxide linkage on distilling impure sample with .... ...
-
0%
a) conc. NHO3
-
0%
b) conc. HCl
-
100%
c) conc. H2SO4
-
0%
d) none of these
Q.30.
If there be a compound of the formula CH3C(OH)3, which one of the following compounds would be obtained from it .... ....
-
20%
a) Ethanol
-
40%
b) Acetic acid
-
0%
c) Methanol
-
40%
d) Formaldehyde