Multiple Choice QuestionsThe SN1 reactivity of the following halides will be in the order
(i) (CH3)3CBr
(ii) (C6H5)2CHBr
(iii) (C6H5)2C(CH3)Br
(iv) (CH3)2CHBr
(v) C2H5Br
(iii) > (ii) > (i) > (iv) > (v)
(v) > (iv) > (i) > (ii) > (iii)
(ii) > (i) > (iii) > (v) > (iv)
(v) > (i) > (ii) > (iv) > (iii)
Which of the following does not answer iodoform test?
n-butyl alcohol
sec-butyl alcohol
Acetophenone
Acetaldehyde
Crown ethers are named as X-crown-Y. In the following crown ether, X and Y are respectively
6 and 12
18 and 6
24 and 6
6 and 24
B.
18 and 6
In the above given figure, X-crown-Y is 18-crown-6.
First number, X, is the total number of 'C' and 'O' atoms in the ring and second number, Y, is the number of oxygen atom in ring.
The most suitable reagent for the conversion of primary alcohol into aldehyde with the same number of carbon is
acidified K2Cr2O7
acidified KMnO4
alkaline KMnO4
pyridinium chlorochromate
Which one of the following compounds will dissolve in an alkali solution after it has undergone reaction with Hinsberg reagent?
CH3NH2
(CH3)3N
(C2H5)2NH
C6H5NHC6H5
Which of the following hexoses will form the same osazone when treated with excess phenyl hydrazine?
D-glucose, D-fructose and D-galactose
D-glucose, D-fructose and D-mannose
D-glucose, D-mannose and D-galactose
D-fructose, D-mannose and D-galactose
Match List-I with List-II and select the correct answer using the codes given below
| List-I | List-II |
| (Polymers) | (Monomers) |
| 1. Buna-N | A. Phthalic acid and ethylene glycol |
| 2. Nylon-6,6 | B. Terephthalic acid and ethylene glycol |
| 3. Dacron | C. Hexamethylene diamine and adipic acid |
| 4. Glyptal plastic |
D. Isobutylene and isoprene E. Acrylonitrile and butadiene |
1 - E; 2 - C; 3 - B; 4 - A
1 - B; 2 - A; 3 - D; 4 - E
1 - D; 2 - C; 3 - B; 4 - A
1 - E; 2 - C; 3 - B; 4 - A
Pick out the statement which is not true?
Tetrazine is harmful edible colour
Alitame is an artificial sweetner
BHT is an antioxidant
Sodium alkyl sulphate is a cationic detergent
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