Alcohols, Phenols and Ethers

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Question

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Question 1 :

In the commercial manufacture of ethyl alcohol from starchy substances by fermentation method, which enzymes stepwise complete the fermentation reaction

1. Diastase, maltase and zymase
2. Maltase, zymase and invertase
3. Diastase, zymase and lactase
4. Diastase, invertase and zymase
Answer
5024

Question 2 :

An organic compound A(C₄H₉Cl) on reaction with Na/diethyl ether gives a hydrocarbon which on monochlorination gives only one chloro derivative then, A is:

1. iso-butyl chloride
2. secondary butyl chloride
3. t-butyl chloride
4. n-butyl chloride
Answer
5025

Question 3 :

Nitroglycerine is

1. An ester
2. An alcohol
3. A nitro compound
4. An acid
Answer
5026

Question 4 :

The compound is HOCH₂ -CH₂OH

1. Ethane glycol
2. Ethylene glycol
3. Ethylidene alcohol
4. Dimethyl alcohol
Answer
5027

Question 5 :

Oxygen atom in ether is

1. Very active
2. Replaceable
3. Comparatively inert
4. Active
Answer
5028