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

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.

55.
An organic compound is used in making picric acid (explosive), phenolphthalein (an indicator), bakelite, salol, aspirin, salicylic acid etc. The organic compound is

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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