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CHAPTER 11
ORGANIC CHEMISTRY
Encircle the most appropriate answer from the following options :
1 Amount of carbon content in lignite is:
(a) 70%
(b) 90%
(C) 80%
(d) 60%
2 The removal of terminal hydrogen from the straight chain of propane is called:
(a) n-propyl
(b) propane
(C) is opropyl
(d) propene
3 The molecular formula of pentane is:
(a) CH4
(b) C3H3
(c) C5H12
(d) C4H10
4 Which of the following are derived From alkanes :
(a) Alkyl radical
(b) Alkane radical
(c) Alkene radical
(d) Alkyne radical
5 Vitamins are found in:
(a) apple
(b) pulses
(c) citrus fruits
(d) both “a” and “c”
6 Name the gas which is not found in coal gas:
(a) Hydrogen.
(b) Nitrogen
(c) Methane
(d) Carbon monoxide
7 Functional group – OH is found in:
(a) Alcoholic group
(b) Carboxylic group
(c) Ether linkage ..
(d) Ester Linkage
8 Perfumes contain:
(a) Sunflower oil
(b) Rose oil
(c) Soya been oil
(d) Palm oil
9 Functional group C-O-C is found in:
(a) Ester Linkage
(b) Aldehydic group
(c) Ether Linkage
(d) Ketonic group
10 CH3-O-CH3 is called:
(a) Dimethyl ether
(b) Diethyl ether
(c) Ethyl Methyl ether
(d) Propyl ether
11. The capability of carbon atom to form chain is known as
(a) isomerism
(b) catenation
(c) resonance
(d) None
12 The branch of Chemistry which deals with hydrocarbons and their derivatives are called:
(a) Inorganic Chemistry
(b) Analytical Chemistry
(c) Organic Chemistry
(d) Bio chemistry
13 Alkanes are also called:
(a) Olefini
(b) Ace tylenes
(c) Paraffin
(d) Carboxylic acid
14 How many carbons are present in Heptanes?
(a) 5 .
(b) 6
(c) 8
(d) 7
15 The chemical formula of octane is:
(a) C5H12
(b) C3H8
(c) C2H6
(d) C8H18
16 Alkyl Radical is represented as:
(a) R
(b) D
(c) A
(d) C
17 Coal consists of_ types:
(a) 1
(b) 3
(c) 2
(d) 4
18 Organic compounds have:
(a) Ionic Bond
(b) Covalent Bond
(c) Electrovalent Bound …
(d) Coordinate Bound
19 Dead plants produce all of these products except:
(a) coal :
(b) gas
(c) petroleum
(d) acids
20 Which one contains double bond?
(a) Alkene
(b) Alkyne
(c) Alkane
(d) Alkyl
21 Which one contains triple bond?
(a) Alkyne
(b) Alkyl .
(c) Alkane
(d) Alkyne
22 Functional group containing carbon, hydrogen and halogens are:
(a) Alkyl Halides
(b) Alkene .
(c) Amines
(d) Halides
23 Functional group containing – NH2 are called:
(a) Thiophene:
(b) Alkyne
(c) Amines
(d) Alkane
24 The vital force theory suffered rejection in:
(a) 1892
(b) 1882
(c) 1889
(d) 1828
25 How many types of formula of organic compound:
(a) 4
(b) 5
(c) 3
(d) 2
26 Formula which represents the actual number of atoms in one molecule of organic compound is:
(a) structural formula
(b) condensed formula
(c) Dot and cross formula
(d) Molecular formula
27 Condensed form of propane is:
(a) H3CCH3
(b) H3C(CH2)2CH3
(c) H3CCH2CH3
(d) CH4
28 A benzene ring is made of carbon atoms:
(a) 4
(b) 2
(c) 3
(d) 6
l l l l
26. -C-C-C-C, is a:
l l l l
(a) Straight Chain.
(b) Closed Chain
(c) Branched Chain
(d) Cyclic Chain
30 C-C bond is stronger than
(a) Si-Si
(b) C-O
(c) both
(d) none
31 Number of isomers increases with increase in number of atoms:
(a) hydrogen
(b) nitrogen
(c) carbon
(d) oxygen
32 Inorganic compounds are obtained from:
(a) Minerals
(b) plants
(c) animals
(d) none
33 Coal tar is a mixture of more than organic compounds:
(a) 300
(b) 500
(c) 200
(d) 400
34 Which one is used as reducing agent:
(a) ammoniacal liquor
(b) coal gas
(c) coal tar
(d) coke
35 The basic unit of carbohydrates is:
(a) glycogen .
(b) glucose
(c) sucrose
(d) pentose
36 Organic compounds are soluble in:
(a) organic solvent
(b) polar solvent.
(c) inorganic solvent
(d) non-polar solvent
37 Geraniol consists of _. __ functional group:
(a) 2
(b) 4
(c) 3
(d) 5
38 Organic compound consisting of “RCOOR” functional group is called:
(a) ether linkage
(b) ketogenic linkage
(c) ester linkage
(d) carboxyl group
39 Homologous series have same:
(a) chemical properties
(b) physical properties
(c) melting point
(d) density
40 Which one provide inert atmosphere in metallurgy process?
(a) ammoniacal liquor
(b) coke
(c) coal gas
(d) coal tar
41 Which one is soft coal:
(a) peat .
(b) bituminous
(c) lignite
(d) anthracite
42 The main component of natural gas is:
(a) methane
(b) butane
(c) ethane
(d) propane
43 Which one is main source of organic compound?
(a) petroleum
(b) natural gas
(c) coal
(d) ammoniacal liquid
44 Natural gas is used to make:..
(a) carbon black .
(b) fertilizers
(c) both
(d) none
45 Esters are recognized by their:
(a) fruity smell
(b) fruity taste .
(c) fruity colour
(d) none
46 It represents group of atoms joined together to each carbon atom:
(a) molecular formula
(b) structural formula
(c) condensed formula
(d) Electronic formula
47 Paraffins means:
(a) little affinity
(b) low affinity
(c) high affinity
(d) none
48 Which type of coal is used as house hold coal:
(a) lignite
(b) peat
(c) anthracite
(d) bituminous