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31
Soft drinks include:
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Answer: Option A
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32
Match the following columns.
Column I Column II
a. Vodka 1. Apples
b. Brandy 2. Potatoes
c. Cidar 3. Barley
d. Whisky 4. Grapes
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Answer: Option A
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33
How many chain isomers can be formed by butane?
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Answer: Option C
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34
Study the following statements.
1. Two immiscible liquids are separated by separating funnel.
2. Latest technique for purification, isolation and separation of organic compounds is chromatography.
3. Oils are purified by steamdistillation.
Which of the statements given above are correct?
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Answer: Option D
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35
Match List-I with List-II and select the correct answer:
List-I List-II
a. Acetone 1. Fire extinguisher
b. Carbon tetrachloride 2. Dressing wounds
c. Iodoform 3. Nail polish
d. Ester 4. Fruit essence
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Answer: Option B
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36
Find the correct chemical formula of nitromethane.
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Answer: Option B
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37
What is the general formula of alkenes?
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Answer: Option A
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38
To prevent from knocking the substance employed in the car engine is
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Answer: Option C
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39
Match List-I (Industrial process) with List-II (Industry with which associated) and select the correct answer:
List-I List-II
a. Cracking 1. Rubber
b. Smelting 2. Petroleum
c. Hydrogenation 3. Copper
d. Vulcanisation 4. Edible fats
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Answer: Option B
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40
When phenolphthalein is added to vinegar, the solution becomes . . . . . . . .
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Answer: Option D
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