General Science - Chemistry MCQs

11. Which among the following minerals is also known as Horn Silver?
[A] Silver Iodide
[B] Silver Chroride
[C] Zinc Phosphate
[D] Silver Sulphide

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12. Consider the following particles in relation to the matter:

  1. π-Meson (Pi-meson)
  2. Photon

Which among the above are considered to be mass less and charge less?

[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2

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13. Polymetallic Modules (PMN) predominantly contain_____?
[A] Calcium
[B] Magnesium
[C] Manganese
[D] Copper

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14. The colors in the fine cut diamond are because of which among the following?
[A] Variance in transparency of diamond
[B] Variance in index of refraction
[C] Presence of Impurities
[D] Existence of definite planer layers

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15. Benzoepin, Parrysulfan, Phaser, Thiodan, Thionex etc. are the names of which among the following pesticides?
[A] Kepone
[B] Paraquat
[C] Endosulfan
[D] Toxaphene

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16. An aqueous solution of Sodium Acetate will be of which among the following nature?
[A] Acidic
[B] Basic
[C] Neutral
[D] Either acidic or basic depending upon temperature of solution

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17. Aluminum is getting popular worldwide today as a “Green Metal”. Which among the following properties of Aluminum makes it a Green Metal?
[A] Aluminum has been providing a replacement of wood for saving forests and contributes in environment protection
[B] Aluminum is a light metal and it is resistant to corrosion
[C] Aluminum has fairly high rate of recycling and it can be re-used repeatedly without its quality deteriorating
[D] The lands after the Bauxite mining can be restored very quickly and easily

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18. Acetylene cannot be safely pressurized as a pure compound. Which among the following is used for safe storage and transportation of Acetylene?
[A] Kerosene
[B] Acetone
[C] Vinegar (Acetic Acid)
[D] Propylene glycol

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19. Above 70 °C, sodium bicarbonate has a property of gradually decomposing, which makes it usable in Bakery products. Which among the following end product of this Thermal decomposition of Sodium bicarbonate makes it usable for the above purpose?
[A] Hydrogen
[B] Carbon Dioxide
[C] Water Vapor
[D] Sodium Carbonate

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20. Which among the following substances is being used most commonly for producing synthetic jet Fuel?
[A] Coal
[B] Natural Gas
[C] Plastic Waste
[D] Biomass

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