1. Which among the following is used in ripening of fruits?
[A]Ethane
[B]Ethylene
[C]Butane
[D]Methane
2. Which among the following is a common salt in detergents?
[A]Nitrate
[B]Sulphonate
[C]Sulphate
[D]Carbonate
3. Which chemical is used in photography?
[A]Potassium Chloride
[B]Sodium Bromide
[C]Silver Bromide
[D]Magnesium Chloride
4. PVC is a polymer of _______________.
[A]Vinyl Chloride
[B]Styrene
[C]Carbonates
[D]Propane
5. Which of the following is a component of Gobar Gas?
[A]Methane
[B]Ethane
[C]Propane
[D]Butane
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