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51
Which of the following are amongst the few carbon-containing compounds not classified as organic?
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Answer: Option C
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52
Match List-I with List-II and select the correct answer:
List-I List-II
a. Butadiene 1. Match industry
b. Lead tetraethyl 2. Dye industry
c. Phosphorus 3. Rubber industry
d. Aniline 4. Petroleum
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Answer: Option B
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53
Which of the following is not the allotrope of carbon?
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Answer: Option B
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54
Assertion (A) BHC is also called gammexane or 666.
Reason (R) BHC is prepared by the reaction of benzene with Cl2 in the presence of light.
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Answer: Option B
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55
An organic compound is used in making picric acid (explosive), phenolphthalein (an indicator), bakelite, salol, aspirin, salicylic acid etc. The organic compound is
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Answer: Option B
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56
All members of a homogeneous series can be represented by the same general formula. Choose the wrong formula from the following.
Alkane - CnH2n + 2
Alkyne - CnH2n + 1
Alkine - CnH2n - 2
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Answer: Option D
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57
COOH is present in which of the following functional groups?
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Answer: Option D
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58
How many hydrogen atoms are present in a molecule of ethanol?
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Answer: Option C
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59
Which gas is used in hot air balloons?
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Answer: Option B
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60
Which of the following element is always present in organic compounds?
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Answer: Option A
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